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Whats this engine - 70s yamaha

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StellariuS
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Joined: 11 Sep 2011
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PostPosted: 17:52 - 21 Sep 2011    Post subject: Whats this engine - 70s yamaha Reply with quote
hey guys,
bought a 70s yz80 with a 100cc yamaha 2 stroke in it for $150 yesterday, started it for the first time in 10 years today, runs like poop.

i believe the engine is out of a yamaha ls3... or thats what the engine is called.

i found an image of it which would help
https://img839.imageshack.us/img839/3327/yamaha100cc.jpg
only differnce i see is the clutch cable runs in the left hand side on mine.

i can take pictures or give more specs
any help or info would be bliss
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StellariuS
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Joined: 11 Sep 2011
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PostPosted: 19:00 - 21 Sep 2011    Post subject: Reply with quote
i dont need to run this with mixed fuel do i?
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Teflon-Mike
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Joined: 01 Jun 2010
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PostPosted: 21:54 - 21 Sep 2011    Post subject: Reply with quote
StellariuS wrote:
i dont need to run this with mixed fuel do i?

BLUEX5 wrote:
Not if the automatic lubricator is hooked up.

StellariuS wrote:
only differnce i see is the clutch cable runs in the left hand side on mine.

In pic of bike you have shown; cable going into the Right hand crank-case cover will be the Auto-lube control cable, NOT the clutch cable; that will still be going to the left hand casing.... so if your engine doesn't have that cable, the auto-lube probably isn't functional, hence yes, you probably would have to run it on Petroil mix.
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StellariuS
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Joined: 11 Sep 2011
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PostPosted: 08:07 - 22 Sep 2011    Post subject: Reply with quote
ill take out the engine and take some pictures..
need some advice with this one
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