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Reviewed in the United States on March 10, 2023
I use this on a customer's machine. They brought it back because it was getting antifreeze in pressurizing the cooling system. After tearing it apart the sleeve had sunk in the cylinder. I would not recommend purchasing this. This sellers junk parts has costed my business over $600.
Chad
Reviewed in the United States on February 4, 2022
After break in, when revving for the first time, the sleeve sank by .006 causing a blown head gasket. I had to have the casting machined down to be even with the sleeve and run a thicker base gasket to get it to work. The only other option for stock bore is genuine Yamaha part ($364) or re-sleeve the stock jug ($110 plus matchine shop fees). The bore was right on at exactly 100mm. There was some casting sand clumps in the water jacket that I had to chip out with a screwdriver. If I had it to do over I would buy a bored out genuine cylinder and oversized piston kit from eBay. I had already spent money on a nice wiseco piston so I was stuck with the 100mm size. I also had to spend another $50 to replace the cometic head gasket that blew when the sleeve sank.You can tell if your sleeve is fully seated prior to installation by trying to stick your thinnest feeler gauge underneath the sleeve flang and on top of the aluminum casting. This can be done through one of two larger coolant passage slots. If you find a gap there send it back and don't install it. It's no fun doing a big job twice because of poor quality parts.
JMP2005
Reviewed in the United States on January 12, 2022
I installed this on a 05 Raptor 660 for a customer after tearing down their engine to find the previous piston and cylinder damaged. This bolted right on. I checked the bore compared to the OEM and found them to be within a couple thousandths. New pistons and rings fit nicely. Machine runs great.
ashley ross
Reviewed in the United States on February 20, 2021
Good have used several if these cylinders on many different applications
Michelle K Culp
Reviewed in the United States on January 5, 2021
It was a perfect fit for our Quad. Fast delivery.Thanks 😊
alain
Reviewed in Canada on January 5, 2021
Had to clean up some of the edges as there was a little bit of metal left over. Could have left it without any issues, but would have bothered me. Lol. Great fit.
Andrew Gibson
Reviewed in the United States on September 19, 2020
Great fit. Just as described. Got the machine up and running again
Zachary Meissonnier
Reviewed in the United States on September 16, 2020
Very nice machining and packaging for safety
Austin W
Reviewed in the United States on August 22, 2020
Fits and works as good as oem without the oem price
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