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Which one makes the most power?

Anybody doit and with what results?

Is there gonna be any benefeit in truing my crank

650sx ported 175psi truebore 38mm kehin factory pipe kinda looking for mid top range

On a race ski in the day, what pumps did they use just blueprinted 650 pump?

I'm thinking of using some lightweight forged piecies. Is there any pro's and cons or just set them up to there specs and go?

Is there any problems with this motor? I heard they broke rings and cranks? Or were they being leaned out. I wana run one but don't want any problems

Has anyone used one these on any 750? How were your results?

I wana put a 650 or 700cc in my 650sx My question is will it run? Will it run right with a single sbn44 along with a pjs 700cc pipe Also is it worth the cost Or just put a 750sx in it

Shopping around for a engine got a 650sx hull Let me know what you got and prices. l got the 700 expansion chamber. Personal message me please.

Is 57 to 60 mph possible?

What years had handeling changes? And what's the best year to have overall price wise.They all look the same like the kawi 750's

Do any of them have enclosed magnets on them?

What are the specs?

Who is the cheapest

I'm wondering if a 900 is a direct bolt on? Or what is needed?

How much do l wana mill for 175psi?

With a .035. Mill and .08 gaskette what should the psi be roughly?

Ok it was running sounded like a plug was fouling l killed it and it wouldn't restart. I put new plugs in it.It has spark and fuel it will not start or even pop. It has unknown compression? but quite a bit. Have any ldea's what it would be?

650sx milled 185psi pjs section 3 pipe ported intake. anybody have a idea what this race carbs main should be drilled it's a full race 38bn with a small hole in the throat for air