Yer change ya gear box oil and get all the old fuel out. just basicly anything you can clean or change do it!!! air filter,oil filter,water,spark plug and so on...and when you first start it let it warm up for bout 5 mins but no longer.
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Hi Eugene:
I had one of these. Great bike for power but personally, I did not like the low speed steering.
The hint you gave us is that it starts with a bump start. I'm assuming that it runs fine one alive. By bump start do you mean connecting an additional battery, or pushing it down a hill.
Bikes this old sometimes have had some interesting maintenance,
I'm thinking that when the starter is engaged, there is not enough voltage to the ignition. If it starts when connected to another battery, then the battery is probably ready to die and needs to be replaced.
Enjoy the ride. I'm on a 2008 Silverado 1100 these days. Perfect for an old dude with nothing to prove.
More likely to be your ignition coils. They heat up and expand this can cause an open circuit which will close up again when it has cooled down. Although, a bad charging system may cause this problem. Check the battery voltage with engine switched off ( approx 12 volts) and with the engine running (approx 14 volts) If you are getting 14 volts then your battery is dead, if you aren't, then your charging system has a fault.
What I would suggest then is to bridge the side stand switch. If the switch stays open circuit, it will never start but if you bridge the wires before the switch then the bike should start and have now solved the problem for the interim or you if it does not start you know you have to look elsewhere.
Please get back if you require anything else or give favorable feedback.
My old 84 GPZ was similar,
sometimes start straight away
sometime spin until the battery was flat.
occasionaly start just as you let the start button go.
roll start straight away.
I believe the battery was putting out enough amps to spin the bike over but the voltage was down to 11.5 volts, this wasnt enough for the electronic ignition which needed nearly 12v to fire.
The reason it would start as the button was released was a slight voltage rise while the engine was still turning and it would fire.
I cant explain why it wont start after charging
A new battery solved it, plus I ran some battery conditioned called INOX in the electrolyte.
I'm in Australia, not sure if you can get this product .
Your bike sounds like a similar problem, hope this helps
i would check if you have a short somewhere.....but first make sure your battery connections are tight....gauges turning off and on while riding is usually a sign of a loose connection meaning you hit a bump or something and it briefly clips out...did the bike actually turn off???
i dunno....but that seems to be a very odd problem....take out the battery, put it on a trickle and let it charge to full cap....then reconnect making sure the terminal connections are secure and see what happens....
if that works, we''ll have to start diagnosing further, but like they always say, check the obvious first !
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