Stock Pistons?

[Bonzia Bob]

Is there a difference in a 65u and a 64x stock 760 piston? If so whats the difference. Thanks in advance:biggthumpup:

 

[waxhead]

no

 

[SUPERTUNE]

Stock OEM Yamaha 760/1200 are very heavy slugs...Go with Wiseco pro-lites...my Team Scream motor that I built in 2002 Still runs great! Chick has 3 seasons on it now. With proper set-up Wiseco pistons are way better.
P.S. I did have wristpin failures (too thin) in 2000 when wiseco first came out with the 760 pro-lites...word to the wise, always buy new current Wisecos.

 

[sflsurfrider]

supertune is right. the difference in weight is obvious just by holding one of each type in each hand, as i found out today. i couldnt believe the difference in the two.

 

[Bonzia Bob]

Thanks guys, I think I'll go with the pro lites this winter for the 760 and just run a 701 for the rest of the season:biggthumpup:

 

[Idok]

nice info chuckie...

 

[FL-cracker]

Stock OEM Yamaha 760/1200 are very heavy slugs...Go with Wiseco pro-lites...my Team Scream motor that I built in 2002 Still runs great! Chick has 3 seasons on it now. With proper set-up Wiseco pistons are way better.
P.S. I did have wristpin failures (too thin) in 2000 when wiseco first came out with the 760 pro-lites...word to the wise, always buy new current Wisecos.

That makes since.....I always use to here people reffer to Wiseco as Seizco "in the watercraft world" :banghead: I guess they have done better through the years:headbang: I have also heard that there cranks were not as good as OEM. Is there any truth to that?, or have there been changes to the Hot Rod cranks over time?

 

[ski4]

weisco and hotrods are 2 separate companies, sounds to me like weisco distributed cranks for them and something bad happened to the arrangement they had

as for better than or worse than oem?????
from what i gather is is the next best thing to oem but not quite as solid

 

[Chester]

The best pistons made are OEM, or Pro-X, or Sudco (all made by ART).

Chester