Possible acquisition of this engine

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kibble

kibble

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I have a mechanic friend who recently purchased a shop from a guy who was selling it. He left behind a lot of stuff, one in particular being an engine that I took some interest in. My friend told me to wait one more month to see if the original owner returns for it and if not, he's gonna get rid of a bunch of the stuff he left behind, as some stuff is more of the junk type.

It's a twin cylinder and appears to be a 2-cycle, piston ported motorcycle engine. It needs a lot of parts and work, but if I could figure out what it is, I may have an easier time finding them. That's if it's even worth trying to restore, of course.

My friend says it's possibly off of a Harley, but I have no idea what it's from. Haven't had a chance to sit there and look at it for any clues as to what it is and I just snapped these pics today to see if maybe some of you may be able to help me out and provide some information or shed some light on it.

Here's the pics:







 
kibble

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It's not a Harley, it's a Yamaha. I found that out last night and I posted it in my second post. I was just saying that that's what my friend had said.

I was able to find a lot of NOS parts on ebay for these motors, I'm just not sure if it would be worth trying to rebuild. I have no idea what condition the internals are in.
 
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Russell ATV

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The engine spark looks to be the gating factor here. That is a points engine, and I think you may have some prodblems finding parts. You may be able to move to electronic points, but have never looked into how difficult this is.

Assuming it is not a pill of unusable rust inside the motor, the mechanical parts should clean up. Perhaps a new clutch, lines carborator and a custom part here and there. Yamaha makes some good engines.

Russ Barrow
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robin

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imw sure some of you will diagree but i would try to flog it on ebay and get a running motor

that motor will cost you lots to get running and i doubt it would not put out much power


you will need the carb s wighting loom exhausts etc

pull the head an have a look at the bores
 
kibble

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Thanks all for your input. I still have to wait about a month to get it though. In the meantime, I'll scout around the shop and see if I can find other parts that may appear to go to the engine and see if they were left lying around somewhere.

If it's not too bad and I decide to try to restore it, I think it would make a pretty neat engine.
 
Jerryburger

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That ad was pulled from a mag that I bought because it had a roadtest of my wife's bike, (cb175)... and the thing that amazes me most is how, back then- no one thought twice about hitting the road on a 100cc- 350cc bike. Now, my sportster is considered a beginner's bike, and the only thing below 250cc lives in a scooter! It's not like speed limits have increased... it was 65mph (voting with the foot) just like now.

Sad to say, but a modded clone puts out about the same hp, more torque, but no tranny. On the other hand, that's a slick little mill.
 
I like karts

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Yeah! I knew it was a yamaha. I have an engine that looks EXACTLY like that, minus one cylinder :D

It's 100 cc and I was going to put it on a shifter kart, but I kinda gave up on it, as it has no ignition box, and those things are a PAIN to find for these engines
 
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