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Yamaha AS2C 1969 Forum


Yamaha AS2C 1969 USA

Bike won't start after sitting for 30 years

Yamaha AS2C 1969 Forum

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Brian Hunter

posts: 2
posted: Friday, August 28, 2009 22:26
Subject: Bike won't start after sitting for 30 years

I have torn down and cleaned the carbs, cleaned the tank and petcock, cleaned air filters, replaced head gasket and plugs, set the points and I can't get the bike started. I have backfire on almost every kick. What do I check next?

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Nick Schultz

posts: 1
posted: Sunday, August 30, 2009 07:33
Subject: Re: Bike won't start after sitting for 30 years

could the valve timing be off?

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Brian Hunter

posts: 2
posted: Monday, August 31, 2009 15:15
Subject: Re: Bike won't start after sitting for 30 years

I've set the points timing as I think they're supposed to be. No valves on this 2 stroke.

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Blurp
"MVEMJSUNP all planets upto pluto"
posts: 268
posted: Friday, October 23, 2009 15:25
Subject: Re: Re: Bike won't start after sitting for 30 years

Backfire suggests to early ignition, you should check a manual, which is essential to work on this kind of process. eliminate all things that can be wrong; the bike is firing so the electrical system including plugs, leads and coils are good. Are the leads on the right way, it's easy to switch them over, specially with equal length leads.. Is the ignition backing plate in the right position? is the point gap okay? did you turn down the heater when you left the house and check for your mother in law..

Good luck!

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