I.D. this porting, or whatever it is.

[NVJAY775]

I am curious as to what I have here.

The cyl is 61x, but the bore is stock 760. The only reason I know that, is because I needed a head gasket last season and the head was a cast protec, so I called them. They had me measure it, and it's a stock 760 bore. But I am curious on the port timing. I don't have the motor apart this very second, but have some pics from when I had the head off. ADA going on soon...

I don't know d!ck about porting yet, but want to learn what I can. I'm most likely going to run this til I xmetal something this summer, but am still wondering what's going on with it.

Thanks fellas.

 

[sjetrider]

no way of telling who portd this. But someone went with the Kawi style oval port which is fine. The transfer port looks untouched to me??? Measure the top of the exhaust port from the top of the cylinder sleave to the top of the highest point on the exhaust port. Hopefully you will have around 39mm or more. That would be good for pump gas low end. Looks to be light sport port at most from the pics.. Hope this answers your question.

 

[NVJAY775]

no way of telling who portd this. But someone went with the Kawi style oval port which is fine. The transfer port looks untouched to me??? Measure the top of the exhaust port from the top of the cylinder sleave to the top of the highest point on the exhaust port. Hopefully you will have around 39mm or more. That would be good for pump gas low end. Looks to be light sport port at most from the pics.. Hope this answers your question.

I need to dig it out from it's winter corner in the garage and check that. It's coming apart, hopefully in the next week or two.

Thanks for the measurements to check.