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Like the title says, just need an oem 800 head.

So next was just to clean up the bilge and get it looking like it deserves more then a lowly piston port 440. Sand blasted the bed plate and painted it up with the same petite bilge coat I did the inside with. Got the e-box cleaned up and painted too, using the Watcon adapter plate fits nice.

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So I got a nice low hour big pin bottom end on ebay for $250 and got to work on porting g the sp cylinder. Had it bored to 82 and ordered some std bore pro-x 800 pistons. I dont have any pics of the cyl yet but here's the port maps. For kicks I included the ported 440 maps at the top to compare...

All the 440 stuff for sale

So I picked up this turd up for 250 on craigslist and I even got a title, not bad except for... the engine ended up being a total pile of horse poop check out the connecting rods, they dont even match! One pro x rod the other stock, the bearings were all shot, and the case has been welded...

Hey all I'm balls deep in a 750 swap and thought I'd post some pics and get some feedback. Long story short I just wanted to stick some more power in it before next summer and ended up getting into big pin 800 and 750 pump swap so its gonna be pretty good I think. I'll start with some pics from...

I had a 250r cylinder done without a plate years ago and the next time I took it apart it had an obvious wear pattern by the studs so I'm a little gun shy to do it again. Good point though on stid placement I hadn't thought about that. I'm doing a Kawi SP 750 1mm over, the studs look somewhat...

Hey guys anyone know of a competent machine shop that can do a bore job with a torque plate, and turn a flywheel and balance it afterwards? All the ebay guys dont use torque plates, all the local shops down here In swfl dont even want to do small engines at all. Closer is better for turnaround...

How much and what kinda props in it

No ones got a 550 pump for sale?

Hey all looking for a nice 550 pump and impeller. Will buy or I can trade you a fresh 81 440 pump, or a nice 140 pump from a 96 750ss, both all stock and should probably get new bearings. let me know what you got!

Hit the saltwater today got a solid 35mph lol trim stuck down full of water ect.. bore measures just under 84mm. Small pin bottom with a max bored 650 top (tall exh port) this bitch is over 800cc lol it hits the pipe hard as licorice and runs out of steam by 6500 the tune up is garbage the pipe is...

Never mind guys that was a tough one, unplugged the temp sensor runs like a champ lol.

I got Franken engine running but it sounds like it's on the rev limit and won't break 4k, starts and idles good. New carb kits, new plugs, 130psi both holes. Probably an ignition problem? Broken Reed? What's common on these turds I know nothin about kawis.

I'm thinking it's a small pin 750 that someone slapped a 650 top end on at some point. I'm doing the carbs now, I'll take it out on the weekend and see if it runs worth a poop before I do anything. If it runs good I'll use it, if it's got lots of problems I'll flip it and find another doner.

0H750BE012354

I got 10 bolts on the intake, so that makes it a small pin in 96??

130 on each hole. I'm definitely gonna tear the top end off and port it, new gaskets, maybe cut the head... it looks super sloppy with blue rtv smeared everywhere lol. should I worry about too small of a prop cavitating or is that just some internet myth? I ride salt water in the gulf so the top...