Rebuilding/Modding Kawi 750 engine

[Project Ski]

I have a Kawi 750 Small Pin that needs to be redone. I am going to put it in an X2 and i am looking for Low End. Hitting 50mph+ would be nice too.

I plan on using 650 electronics and flywheel
I want to use 93 octane pump gas

How far would you bore it out? I was planning on 2mm over.
What brand piston would you go with? Any brand to stay away from?

Does an afermarket head need to be remachined with a 2mm over bore?

Next is porting... any place that knows kawi's better then the rest or any particular place that does a better job in general then the rest?

Now to the Carb. I want low end power and easy tuning. I was thinking Mikuni 44 or 46. I want a single carb due to ease of tuning and space restriction in an X2 hull. Any others to look for? Novi, Buckshot, etc?

My crank needs a rebuild, Are the ebay rebuilds reputable? again any place recomended to send it?

Any other things i should be thinking about other then a pipe. Or any other suggetions please post. Im looking for the best bang for my buck. Im not going all out on this as i do have a budget.

Thanks In Advance guys
Dan

 

[ski4]

i know aquasports was doing group k's hammer kits and what not for kaw's. at least i think that is what i remember

and i have always heard rave things about tdr for crank rebuilding

 

[djkorn1]

Send the flywheel and head to Group K for lightening and cutting.

 

[w-nut]

im not sure you wont to go 2mm over size thats the max you can go with the standard sleves. most people go 1mm over size (765) . my small pin is 2mm over size and it wasnt that much diffrent from 1mm and then you still have some let iff you have problems

 

[unclehulka13]

Dont go 2mm over unless your bore is so bad that you have to. The little increase in displacement will not make a large enough difference in power for you to notice. Get a Factory limited pipe, a single 44/46 and get some porting from whoever you like.

 

[Island750]

If you have the time and patience, you can port it yourself using a SportPort template from RaceLogic. Do a pipe, head, carb. 50 should be right there. I agree with Hulka on the bore. Don't take it out that far unless you have to. If it goes you still have material to work with.

 

[Project Ski]

Does anyone have the templates? How does the porting compare performance wise to the better shops out there?

How much does porting from a reputable shop usually run?