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Technical Help Forum
Started by chris in greenbrier at 07-23-2010 2:40 PM. Topic has 6 replies.
  
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 Yesterday, 2:40 PM
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chris in greenbrier
 
Joined on 07-27-2009
greenbrier, ar
Posts 46
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ok i have got no idea whats wrong. my bike is very temperamental. it runs great when
i can get it to start but lately its been real hard to start. it will usually start after it backfires
one good time. ive done everything imaginable to this old bike i can think of. its had three
stator replacements, three cdi replacements, cam chain and every bit that goes along
with the chain, cleaned carbs twice now, cleaned all of the oil pump assembly, air filter,
cleaned fuel tank and use premium fuel, thermostat, flushed radiator, new fan.
ive got to be missing something. to me it seems it should be good to go. and it is once
it gets started. the starter spins strong and quickly and the battery seems good too. i want
to use this bike as my ride to and from work but with this starting problem, its making it hard.
any thoughts?????????
79'CX500 C (finally riding again)
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Yesterday, 2:49 PM
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Abes_CW
Joined on 04-17-2007
saskatoon
Posts 3,036
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Carbs. Third time's a charm. IMO.
1983 GL650i
Had 4 CX/GL's at one point this year, down to one, next spring is another adventure!
age 38 (29 plus tax)
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Yesterday, 2:55 PM
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chris in greenbrier
Joined on 07-27-2009
greenbrier, ar
Posts 46
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i was afraid someone might have said that. the both times i did that
the motor was out. can it be done without taking it out. im just
thinking the cables would be the tough part.
79'CX500 C (finally riding again)
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Yesterday, 3:09 PM
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Cobram
Joined on 06-23-2007
Boston, MA
Posts 1,547
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It's not that bad, there is a thread on how to do it by Larry the carb guru, but I can't seem to find it. Maybe someone reading this has it book marked and can post the link.
1978 CX500 - I live on a one-way street that's also a dead end. I'm not sure how I got here, or how I'm going to get out.
Four wheels move the body; Two wheels move the Soul.
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Yesterday, 3:14 PM
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Shep
Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,647
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Yesterday, 3:38 PM
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Reg in Bristol
Joined on 03-11-2006
Bristol UK
Posts 782
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It its fine once you get her running it sounds like a weak spark to me
As the ignition relies on magnets spinning past coils, the power builds with revs
Just a guess but
Try disconnecting the black/white wire from the CDI just before starting
if it makes any difference you may have a build up of crud on the kill switch
which is shorting Stator power to ground
Re the plug caps.
stick a meter in each end and see of you get about 5Kohms
If you get lots more the resistors may be burnt out, that wont help.
3 Stators? ouch !
Just for the hell of it, do a quick resistance test and note the readings.
also check all the ignition connectors for bad contacts and the coils are
well grounded to the frame/battery negative.
A DC CDI output test during cranking may give some clues as well
HTH
The 'Mongrel' is on the road
78 frame, ZAB gubbins, 82 'TI' motor, Suzuki clocks, MZ screen
and gaiters, Kawasaki master cylinder, BMW horns
DIY wiring
and all thrown together with a fanatical inattention to detail :-)
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Today, 2:24 PM
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chris in greenbrier
Joined on 07-27-2009
greenbrier, ar
Posts 46
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thanks everyone for the advise. ill get on that asap. I'm not gonna give up on
her yet. have gotten very frustrated lately with the bike and even thought about
selling it at times. but with all that Ive done with it i know it shouldn't take much
more to make this a good bike once again.
by the way, i had trouble getting on here earlier. it was saying the site was down.
anyways, it seems fine now.
79'CX500 C (finally riding again)
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Honda CX500 & G... » CX500 GL500 Tra... » Technical Help ... » starting troubles
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