1994 Yamaha G11AK with JN5 300ccm engine ??

[Robodad]

I bought a Yamaha G11AK utility cart for really cheap and it didn't run at all, I cleaned out the carb and fuel pump and tank, installed a new electric fuel pump and changed the oil and installed a new battery and it started right up but it smokes pretty bad. I then did a compression test and it pumped right up to 205psi but then leaked down pretty fast so I took the engine out and opened it up and found the valve guide seals to be leaking or so I think. With the compression tool screwed into the spark plug hole I rolled the engine over for about 20 or so seconds and then when I took the engine out there was about a tblsp of oil on top of the piston, also there is like a clean trail on the exhaust side of the head between where the valve seats and the guide (kinda hard to describe) The exhaust valve is on the right hand side and you can see the clean spot im referring to in this photo:




My question is that on the engine block it says its a JN5 300cm3 so will G11 parts fit or is this not the original engine and I have to get JN5 parts.

I'm pretty clueless as to what parts will work with this cart, I just want to be sure to order the right ones the first time LOL !!

Thank You for any information you can provide !!!

[smallblock450sl]

Posted in the sticky.

[Robodad]

Originally Posted by smallblock450sl

Posted in the sticky.

I see that, Thank you !! This thread is useless and can be deleted !!