Hello,
I have a non-running Yamaha Champ LC50 (1980-81) and cannot find much along the lines of a service manual for it.
It is pretty complete, was on the road in 2004 but it is an odd little bike; 6v, no electric start.
When I try and kick start the bike, it has very little resistance and it makes a real smooth quiet noise; the smallest amount of light grey smoke comes out of the exhaust.
Any help or direction would be great. Thanks.
Yamaha Champ LC50 manual?
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- CBR1000RR
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Sounds like it was run without oil and the topend is shot(assuing its a 2 stroke without oil injection)? Pour a table spoon of oil in the spark plug hole, crank it without the plug several times, repalce the plug, squirt some gas in the carb and see what happens.
I am not a mechanic, nor do I play one on TV. Actually my advice is probably worth slightly less than what you pay to view it.
- kentdog007
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Oil injection
I believe it is oil injection as there are separate tanks/fillers for gas and oil; similar to the Spree setup. With the plug out, it sounds like any of my other 2 stroke mopeds, but with the plug in it you don't hear any noticable engine "chugs".
I will try what you said; I think the tank and everything has to come off to get to the air filter holder, but I am getting spark and gas so at some point here something has to burn right?
Thanks.
I will try what you said; I think the tank and everything has to come off to get to the air filter holder, but I am getting spark and gas so at some point here something has to burn right?
Thanks.
- kentdog007
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Top end on Yamaha
Before I tried the oil without the plug, I turned up the idle screw on the carb and gave it a kick; ran (charged) for maybe 1.5 second, white smoke. It will run every few minutes, better if I give it lits of throttle while starting; but comes to a very rigid STOP. Put the squirt of oil and kicked it w/o the plug a few times...similar results still.
My roomate says he hears bad noises, like a ring is shot..you said the top end might be shot from lack of oil. Its oil injection but I noticed the injector is disconnected, must of been running premix...I hope.
If it runs like a * for a second, wouldn't it stop if there was serious internal damage? Or can a shot engine give a flash of life every three minutes?
Its got 4500+miles on it, any thoughts? Be gentle
My roomate says he hears bad noises, like a ring is shot..you said the top end might be shot from lack of oil. Its oil injection but I noticed the injector is disconnected, must of been running premix...I hope.
If it runs like a * for a second, wouldn't it stop if there was serious internal damage? Or can a shot engine give a flash of life every three minutes?
Its got 4500+miles on it, any thoughts? Be gentle
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- CBR1000RR
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- BMX
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Is it the OLD champ, like a mini-bike style with dirt tires or is it the newer champ that is a scooter with a leg shield and very similar to yamaha QT50? YOU are running premix in it right? If it will fire for a second then it has enough compression to run. Clean the carb out and petcock and you should be running.
HondaCharlie
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