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CX Customization and Modifications

Started by Blindstitch at 02-15-2010 10:20 AM. Topic has 163 replies.

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   02-15-2010, 10:20 AM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Re: Doward's Build
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It's all about supply and demand. If there is no demand there is no reason for supply.

That's where internet businesses win because they don't even have to have the items. They just need the contact and to set the price.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   02-19-2010, 8:28 AM
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Next up, a proper full face helmet of my own.

Going to spend today disassembling and cleaning the forks from the VT750 I picked up :)

1978 CX500 motor + 1980 CX500C frame
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   02-19-2010, 8:33 AM
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A helmet search could be a pain. The best are even more of a pain on your wallet.

I would like a Scorpion Exo 700 but at the price a replacement for my KBC VR1 will have to do for a while longer.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   02-19-2010, 8:40 AM
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I'm actually considering the Exo-900.   Birthday is next week, and the wife and family are pitching in, plus I have 15% off for one day @ the HD Dealership since I took my MSF course there.  I'd get the helmet for around $230 out the door that way.  Already went by, they let me try on various sizes of the Exo-900, and the XL seems like the best fit.

Now to decide on color.  I'm really liking that matte anthracite!



1978 CX500 motor + 1980 CX500C frame
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   02-19-2010, 8:57 AM
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Actually maybe it was the exo-1000 or exo-900. I remember liking the air fit. Was kind of like those shoes they use to make where you pumped them up to fit right. Either way I'm thinking scorpion. I only wish they made a cruiser jacket. I got Melody the Dahlia jacket and she loves it. But who could beat half off and it does what a normal jacket does and more.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   02-19-2010, 5:03 PM
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Very nice!

And tonight's purchase: this CX650(T?) clutch setup for $50 off the 'bay. 

Pretty sure it's a Turbo clutch, as it has 6 springs.  Parts fiche is showing me the normal CX650 still used a 4 spring system.   Next up is tracking down a primary reduction gear - bringing my 2.242 down to 1.725!

1978 CX500 motor + 1980 CX500C frame
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   02-19-2010, 8:34 PM
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http://images.google.com/imgres?imgurl=http://images.cmsnl.com/img/partslists/honda-cx650t-650-turbo-us-clutch_thumbhu0193e7d09_b709.jpg&imgrefurl=http://www.cmsnl.com/honda-cx650t-650-turbo-us_model1068/partslist/&usg=__UIEtc_rD2LzRvYr19wHigZibLBQ=&h=75&w=100&sz=4&hl=en&start=6&sig2=0-cpHSti_xVYRiSdSCOtkA&um=1&itbs=1&tbnid=kqcp6IDBEVcr2M:&tbnh=61&tbnw=82&prev=/images%3Fq%3Dcx650%2Bturbo%2Bclutch%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DN%26rls%3Dorg.mozilla:en-US:official%26tbs%3Disch:1&ei=6GN_S-qIGdTHlAfdq6j_AQ
1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   02-20-2010, 12:34 AM
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Ah, thanks.  I'll look it up later, but I'm hoping that both the turbo 500 and 650 use the same clutch packs.     The auction states the clutch is in good condition, but I'd like to verify that, lol.

*edit*  - Just noticed, those prices are in pounds, so I'm assuming across the pond.  I'm in the US of A :)

1978 CX500 motor + 1980 CX500C frame
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   02-20-2010, 12:47 AM
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Well that's where you go when you need parts for bikes that barely exist here.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   02-20-2010, 6:08 PM
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LOL, true.  I'm going to do some measuring of the plates - I'm curious if the physical dimensions of the friction plates are the same as the standard CX friction plates.  If so, sourcing them won't be a problem (Barnett's)

Turbo clutch assembly was shipped today, still sourcing the primary drive gear to correspond.  Figure this is easier than converting to belt drive ;)

1978 CX500 motor + 1980 CX500C frame
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   02-21-2010, 8:56 PM
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Well, had my first night ride tonight!   Not far, only about 40 miles or so.  I did some shimming of the clutch springs to tighten them up a bit, and that's reduced the slippage for now.  New clutch springs are on order, so I'll get that taken care of later this week as well.

I also relocated the rear turn signals down to the fender closer to the rear brake light.

Pretty fun bike!

1978 CX500 motor + 1980 CX500C frame
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   02-22-2010, 12:43 PM
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HA!  I shimmed the old springs, and now the clutch just BARELY slips, and only at full WOT 9k+ rpm pulls.

Jerry asked for some new pics, so here they are ;)





My new cam chain guide set arrived today as well!


Slowly but steadily.

BTW, does anyone know how this ring in the bottom of the fork tube ('83 VT750) come out?  I don't see any damn way!


1978 CX500 motor + 1980 CX500C frame
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   02-22-2010, 6:09 PM
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What or how did you shim the clutch springs.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   02-22-2010, 7:40 PM
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1.2mm washers under the springs.

1978 CX500 motor + 1980 CX500C frame
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   02-23-2010, 7:02 AM
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Looking good! I'm subscribed.

1970 Honda SL175 KO "Motosport"
1972 Honda CL70 K3 "Scrambler 70"
1981 Honda cx500 "custom"
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   02-23-2010, 10:32 AM
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I haven't even starting attacking with the welder and sawzall yet ;)

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   03-06-2010, 1:22 PM
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Ok, so I was able to snag a CX650 Turbo inner clutch cover and outer clutch cover for $55/shipped on the 'bay - clutch fits nicely in there, lol.

Now the question is going to be - does the turbo Inner clutch casing bolt to the non-turbo CX500 engine casing????   We'll find out tonight ;)

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   03-07-2010, 9:03 PM
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YES!  It'll bolt right up, but the oil return is SLIGHTLY off - so I'm going to need to see if I can get creative with that part of it.

Oh, and brand new clutch springs (EBC CSK41) did *nothing* to help my slipping clutch.   The RotellaT 15w40 is JASO-MA certified, so that should be fine.  I'm beginning to wonder if this is less a clamping issue as I previously though, and more a friction problem.  I noticed the metal clutch discs look like they should be 'rough' from the dimples and such you see on them, but they feel really smooth to the touch?

Ugh, I need to get this other engine done ASAP with the turbo clutch - let's see THAT slip on a basically bone stock CX500!

1978 CX500 motor + 1980 CX500C frame
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   03-08-2010, 11:09 AM
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Hi Doward.

I have a set of Dyna mufflers and it doesn't appear I have enough room to mount the one on the right/final drive side -- the muffler and final drive contact each other. How did you mount yours?

Thanks in advance.

BTW, I dry-fitted the Dynas and started the engine... oh man does it sound sweet! I really want to make these work.
Current: '79 CX500 Deluxe, '99 Kawasaki Concours (ZG1000)
Past: '74 CB550, '81 CB750 Super Sport, '84 VFR 750 Interceptor

"If the women don't find you handsome, they should at least find you handy!"
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   03-08-2010, 11:51 AM
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Re: Doward's Build
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You sure the stock carbs will handle the pressure of the turbo? You could always put something like a weber 40 in front of the turbo if you ran an electric fuel pump. You could even have the turbo sticking out one side, and the carb sticking out the other to keep it balanced.

I know people would run dual 40s on basically stock VW 1600cc engines, so roughly 800cc per carb. Take into account the low rpms of the VW engine (5000 rpm was pushing it pretty hard) and it seems that a 40 would work. They do make smaller carbs too, but I love the look of the side draft 2 barrels.

My $.02

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   03-08-2010, 12:32 PM
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 tvpierce wrote:
Hi Doward. I have a set of Dyna mufflers and it doesn't appear I have enough room to mount the one on the right/final drive side -- the muffler and final drive contact each other. How did you mount yours? Thanks in advance. BTW, I dry-fitted the Dynas and started the engine... oh man does it sound sweet! I really want to make these work.


They come out just to the side of the final drive.  I did have to rotate them so that the 'flange' that runs along the muffler is pointed down.

 AmericancClassic wrote:
You sure the stock carbs will handle the pressure of the turbo? You could always put something like a weber 40 in front of the turbo if you ran an electric fuel pump. You could even have the turbo sticking out one side, and the carb sticking out the other to keep it balanced.

I know people would run dual 40s on basically stock VW 1600cc engines, so roughly 800cc per carb. Take into account the low rpms of the VW engine (5000 rpm was pushing it pretty hard) and it seems that a 40 would work. They do make smaller carbs too, but I love the look of the side draft 2 barrels.

My $.02


Noooooooo - I can't stand a draw through turbo system.  The fueling is a nightmare (as you are running an emulsified fuel/air mixture THROUGH the turbo, and then actively COMPRESSING that fuel/air charge!) and high speed operation tends to ice the carbs up.

That said, yes - look at how the vacuum signals all operate in the carb.   As long as the fuel bowls have the same air pressure as above the jets, the carbs will work fine.  I wouldn't run a carbuerated turbo much over 7-8psi, though, and the high static (10:1) compression of the CX500 means I've got to keep turbo pressure down.

1978 CX500 motor + 1980 CX500C frame
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   03-08-2010, 12:52 PM
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Re: Doward's Build
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Can you post a pic of your muffler mount?

TIA
Current: '79 CX500 Deluxe, '99 Kawasaki Concours (ZG1000)
Past: '74 CB550, '81 CB750 Super Sport, '84 VFR 750 Interceptor

"If the women don't find you handsome, they should at least find you handy!"
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   03-08-2010, 1:32 PM
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Unfortunately, right now the mufflers are only held in by the H-box - I've been meaning to build a system down from the passenger pegs for a while now.  Hopefully I'll have some free time this coming weekend and be able to do so!

1978 CX500 motor + 1980 CX500C frame
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   03-08-2010, 1:44 PM
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My original plan had the mounting "flange" on the top, with a piece of steel stock twisted 90 degrees as it heads up to the passenger foot peg mount. But I'm not sure it will hold the muffler far enough out to clear the final drive.

If I make any progress, I'll post a pic.

Thanks.
Current: '79 CX500 Deluxe, '99 Kawasaki Concours (ZG1000)
Past: '74 CB550, '81 CB750 Super Sport, '84 VFR 750 Interceptor

"If the women don't find you handsome, they should at least find you handy!"
- Red Green
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   03-25-2010, 2:18 PM
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What er... how did I stumble on here?   hehe

Wanted to say thanks, 'stitch - I just ordered a pair of those Tecoparts coils to go with my Ignitec system.  Now to find a new, inexpensive stator - I've got the rest of the CX650T primary reduction driven gear parts on the way - and I still need to (re)finish the 39mm Shadow forks so I can get that new setup on.

Going with a 7-9 degree rake on the steering head, as well.   Probably be a good idea to swap to an electric fan while the front of the engine is apart, too.....

Searching for "G7 Stator" and "G8 Stator" are leading me nowhere on ebay so far :(

1978 CX500 motor + 1980 CX500C frame
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   03-25-2010, 4:03 PM
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http://www.bbbikeshop.co.uk/acatalog/Browse___Best___Buy_Honda_Alternators_139.aspx

http://www.bbbikeshop.co.uk/acatalog/RegrectHond.htm

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   03-25-2010, 7:01 PM
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Is the UK the only place to source them?  That would bite on shipping!

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   03-25-2010, 7:22 PM
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Just look at the diagram and the g8 stator bikes. Those would all be what you could search for.

G8
CX 500E Prolink/Turbo 82-83
GL500 81-82
NTV600 1988
CX650 E/Custom/Turbo 1983
GL650 1982
NT650GT Nighthawk 88-91
NTV650 Deauville
VT700C Shadow 83-84
NV750C SHADOW 1986
VT750C Shadow 83-87
VT750C2 Ace 1997
PC800 Pacific Coast 89-97
VT800C
VT1100C Ace 95-97
VT1100C Shadow 85-94


1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   03-25-2010, 7:36 PM
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Cheapest I found that wasn't used.
http://cgi.ebay.com/ebaymotors/RICKS-MOTORSPORTS-STATOR-84-85-HONDA-VT700C-SHADOW_W0QQitemZ230382172659QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item35a3d8f9f3

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   03-26-2010, 9:05 AM
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Ahh, I appreciate it!

Just scored an '01 GSXR 600 electric fan off ebay for $11 shipped ($1 bid + $10 shipping lol) - looks like the electric fan conversion is going to happen as well.  Already got a relay, just need to set up a thermostatically controlled switch!

1978 CX500 motor + 1980 CX500C frame
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   03-27-2010, 4:30 PM
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Pete's CX650T parts arrived today!  Going to clean them up a bit, and go do some experimenting, as far as how to fit it all together on the 'spare' CX500 engine.

1978 CX500 motor + 1980 CX500C frame
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   03-27-2010, 7:24 PM
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So why did I take the ebay seller's word this was from a CX650T?

Counted the teeth on the clutch basket - 74 teeth, not 69 like it should be.   This clutch basket is from a CX500 Turbo, not a CX650 Turbo.   Which means I'll have a 2.056 primary reduction vs the 1.725 I was looking forward to!

So my options are:

A) swap the CX500 turbo clutch for a CX650 turbo clutch

or

B) swap the CX650 turbo driven gear for a CX500 turbo driven gear

Thoughts?   Stock reduction ratio is a 2.242 for any that don't remember :)

1978 CX500 motor + 1980 CX500C frame
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   03-28-2010, 6:45 AM
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Re: Doward's Build
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Contact the seller and see if you can get you $'s back. If not, move on and go with a 500T basket. Its not the reduction you were hoping for (8.30% reduction vs. 23.06%), so you have to decide if the additional 16.10% is worth going after.

I think you have enough ahead to keep you busy and us entertained.

We need to start seeing some updates on the engine changes. I might be able to use some of them, so get going man...

:-)

Jerry
90 PC 800 (commuting steed)
82 GL500I (50+mpg, great bike)

66 BMW R 50/2 (No brakes/HP)
80 CX500C (Loved this bike)
74 CB360 (Fun; but too small)
79 CX500D (40,000+ mi in 3 years)
76 CB550 (step up from 200cc)
74 KZ200 (1st bike!)
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   03-28-2010, 7:15 AM
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 Spacetiger wrote:
Contact the seller and see if you can get you $'s back. If not, move on and go with a 500T basket. Its not the reduction you were hoping for (8.30% reduction vs. 23.06%), so you have to decide if the additional 16.10% is worth going after. I think you have enough ahead to keep you busy and us entertained. We need to start seeing some updates on the engine changes. I might be able to use some of them, so get going man... :-) Jerry


I sent them an email yesterday.  I paid $50 shipped for the clutch setup, so I'm not going to complain about that.  The clutch pack is in REALLY nice condition, too.

Hitting up Service Honda's parts fiche now to see if the clutch packs are the same or not.  I'm hoping I can just track down a 650T outer clutch basket and move on with this upgrade!

*edit*

Yep, the clutch PACK between the CX500T and CX650T are the same part numbers.   The difference is the outer clutch basket.  Figures!  Posted asking Pete if he might have one for sale.

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   03-28-2010, 1:19 PM
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Pete's setting me up with a CX650T clutch basket/discs, so we're rolling along again.

I'm in the middle of rebuilding a transmission for a friend, so the workbench is tied up at the moment - but I'm trying to decide on a color scheme for my bike, still.   I'm a big fan of the old Gloss Black, but surely I can come up with something more original?

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   03-28-2010, 1:41 PM
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For anyone wondering:





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   04-01-2010, 12:13 PM
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Anyone using the RMStators off ebay?  I'm looking at getting one for the CX...

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   04-02-2010, 8:44 PM
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Still curious about this...

 Doward wrote:
Anyone using the RMStators off ebay?  I'm looking at getting one for the CX...


Started the 650Turbo clutch swap.  Ran into a snag - the oil pipe doesn't fit with the new, larger primary drive gear!  Going to have to pull out the trust c-clamp and put the squeeze on that pipe ;)

Pics tomorrow.

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   04-03-2010, 12:14 PM
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Note:  The oil pipe has to be 'persuaded' to fit around the large 40T primary drive gear of the CX650T.

Finished that, now I've got the oddest problem - bolted the oil pump back in place, but the Turbo front cover doesn't seem to line up exactly with the oil feed through the oil filter.  It's about 1/4" (6mm) off to the side.

Off to tackle that little issue.   I know the Turbo oil pumps used a smaller gear for more oil volume, but I don't know if the actual pump bodies were physically different.


Anyone?

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   04-03-2010, 1:40 PM
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You could check the parts fiche.


1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   04-03-2010, 2:52 PM
Doward is not online. Last active: 7/23/2010 7:23:27 PM Doward



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Alachua, FL
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Re: Doward's Build
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They don't list the pump body - only the assembly, and I'm certain the pressure relief valves are different if nothing else!

1978 CX500 motor + 1980 CX500C frame
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   04-11-2010, 2:01 PM
Doward is not online. Last active: 7/23/2010 7:23:27 PM Doward



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Re: Doward's Build
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OK!

A) Yes, the turbo oil pump is physically bigger.  The pickup tube has a larger diameter, and the pickup tube is longer than the standard CX500.

B) An '02 GSXR-750 electric fan fits wonderfully, and covers a good 90% of the radiator to boot!

C) SHE'S ALIVE AGAIN!

D) I didn't realize this earlier, but the Turbo inner clutch cover DOES NOT have an oil drain.  So at my next oil change, I'm going to have to drill/weld/tap a bung into the CX.  I'm actually considering doing this at the bottom of the actual block, as there's 4 round areas on the bottom of the block that would be perfect to drill/tap a drain plug into.

E) I need to come up with a better way to control the GSXR fan.  Right now it's manual.  I'd prefer automatic, so that will be worked on as the build progresses

F) Damn, that CX650T clutch is STIFF compared to stock.   Serious clamping going on now, and my hand's getting a workout!

G) Speaking of Turbo clutch, I had to cut about 2" off the stock clutch cable and solder a ferrule on in order to work with the Turbo clutch arm actuator.  I soldered both sides of the ferrule, so it should be good, but I'm going to order a custom length cable just for this.

That said, time to go see how the lower RPMs feel on the open road, after I finish checking for any leaks and such.

1978 CX500 motor + 1980 CX500C frame
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   04-11-2010, 2:34 PM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Greenfield Wisconsin
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Re: Doward's Build
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For the fan I see two options. Maybe 3 but im not sure. There is that thread around here of the 650 screw in thermostat sensor. Maybe if you got one of those it could be wired.

#2  if it can be wired maybe you can still use it to run the guage too but i'm not sure.

#3 One of the guys rand one of those and a series of bras pipes to make use of both sensors. One powered the fan and the other the temp gauge.

#4 because there is always one. I think sheps electric fan mod included soldering a thremostat on off type sensor to the radiator.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   04-11-2010, 2:43 PM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Re: Doward's Build
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Info for you.
http://choppercharles.com/cs/forums/144515/ShowPost.aspx

Scroll way down.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   04-11-2010, 2:49 PM
Doward is not online. Last active: 7/23/2010 7:23:27 PM Doward



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Re: Doward's Build
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 Blindstitch wrote:
Info for you.
http://choppercharles.com/cs/forums/144515/ShowPost.aspx

Scroll way down.


Appreciated!  I'm reading now, just got back from a couple mile blast down the road to see how the CX650T primary reduction gear holds up.

70mph @ an indicated 4500rpm.   No more slipping clutch - AND - I no longer feel the need to have a 6th gear

The only 'negative' (if you'd call it that) I'm finding is that on takeoff, I can't just dump the clutch out like I used to - now, I actually slip it just a little for a smooth take off.

Once the wife gets home from work, I'll take a longer trip down to Gainesville and back and see how it feels on a longer trip.

I can say this, although she's no rocket, she pulls cleanly up even in 5th gear without an issue.   If anything, I may drop to the 16" tire down the line, but for now I'm REALLY happy with how this has turned out!!

1978 CX500 motor + 1980 CX500C frame
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   04-13-2010, 9:35 AM
Doward is not online. Last active: 7/23/2010 7:23:27 PM Doward



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Re: Doward's Build
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OK!

So my battery only has 90 CCA.  Hmmm.... not thinking that is the norm (and my battery totally discharged yesterday) so I snagged a new battery.  Going to test the CCA in it shortly, just as a comparison.

That said, here's my impression of the CX650T gearing so far.

I no longer have that constant-shift feel, that's for certain!   I'll run 4th gear up around 50mph before shifting to 5th now.   Also, 4th gear behaves a LOT like 5th gear used to, so I'm very happy.  I have, in essence, that '6th' gear everyone's asking about!

Today's going to be an electrical bit of fun.  Going through, checking the stator / voltage regulator, cleaning contacts, and I think I'm going to upgrade the positive and negative battery terminal cables while I'm at it.

1978 CX500 motor + 1980 CX500C frame
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   04-13-2010, 9:51 AM
wildmanwill is not online. Last active: 7/23/2010 4:09:54 PM wildmanwill



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Joined on 05-25-2008
Chester County, Pennsylvania
Posts 4,034
Re: Doward's Build
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 Doward wrote:
Anyone using the RMStators off ebay?  I'm looking at getting one for the CX...
Abes_CW put on in his GL650 during the summer of 2008. Possibly others around who are using them, but they just aren't reading your build thread.

1983 CX650 Turbo
1982 CX500 Custom
Donating Member

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   04-13-2010, 9:52 AM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Greenfield Wisconsin
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Re: Doward's Build
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2000 rpms slow at 70mph. I wonder how well your stator is going to like that. With the same numbers you're also not using the second half of the carbs.

Maybe it's just me but I would be happy with 6,000 rpms at 70mph. The curiosity factor really wants to know what your gas mileage is like at highway speeds!

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

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   04-13-2010, 12:13 PM
Doward is not online. Last active: 7/23/2010 7:23:27 PM Doward



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Joined on 05-11-2008
Alachua, FL
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Re: Doward's Build
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 Blindstitch wrote:
2000 rpms slow at 70mph. I wonder how well your stator is going to like that. With the same numbers you're also not using the second half of the carbs.

Maybe it's just me but I would be happy with 6,000 rpms at 70mph. The curiosity factor really wants to know what your gas mileage is like at highway speeds!


Me, too - but the charging side of my stator just went kaput (I have continuity between the frame and the 3 yellow wires.  Yay.)  As for the stator @ 4500rpm, I don't see it being a problem - Honda says 5 amps / 14.5 volts @ 5000rpm, right?  I won't be running the electric fan when cruising @ 70mph, so only the 35 watts of the HID headlight and whatever wattage the Ignitec pulls should be the only load on the bike.

I've got one stator here that is bad, and I've got one stator that the CDI part is bad, but the charging windings do not have any problems according to the multimeter.

Going to go drop the engine back out (again) and swap stators in a few moments.

Depending on how it all works out, I'll most likely swap my 18" wheel for a 16", and see how the bike feels then - maybe do that next winter?

1978 CX500 motor + 1980 CX500C frame
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   04-15-2010, 9:51 AM
Doward is not online. Last active: 7/23/2010 7:23:27 PM Doward



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Joined on 05-11-2008
Alachua, FL
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Re: Doward's Build
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Filled her up today, going to see how the gas mileage does!

1978 CX500 motor + 1980 CX500C frame
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