925 Big Bore kit? - HCS Snowmobile Forums

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Old 07-13-2010, 06:00 PM   #1 (permalink)
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Current Sled(s): 06 Crossfire 700 Sno Pro
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So my friend is looking at buying a sled from someone local in town. It is a ZL 800SS with a 136 track extension kit and the guy says that it has a 925 big bore kit installed. It has the stock pipe and is efi. The only modified thing in the engine bay that I noticed was the D&D racing clutch pieces.

Can someone verify if they actually made a 925 BB kit for this sled? or is he just blowing smoke up my buddies ass?

Any Help would be appreciated.
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Old 07-13-2010, 11:24 PM   #2 (permalink)
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yes they did. you'd need to measure the bore to be sure though. an 800 would be 81mm and a 925 would be closer to 90 mm. 88 maybe. 925 pistons were Very hard to come buy a few years ago, maybe they are out there now. if its running with the stock pipe, and without a fuel press regulator or a boondocker box, the I'd say that it is a very mildly built 925 ie, not much power. if it still has the APV valves in it, pull them out and look. they would have needed to be shimmed back, or cut shorter and reshaped to work with a 925's bore.
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Old 07-13-2010, 11:39 PM   #3 (permalink)
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bLACK MAGIC USED TO MAKE ONE AS WELL AS A COUPLE OF OTHERS, LOOK IT UP ON GOOGLE, THERE ARE A COUPLE OF THEM ON THERE.

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