Power valve which way?

[putzy]

Had my power valves out for awhile, now can't remember how they go back in lol. Does the beveled side go up or down, can't find any pictures. Thanks

 

[Woody255]

Beveled side up as I recall. Good luck.

 

[YAMMIEGOD3:16]

yes, flat up 3:16x (yammie tony)

 

[super1c]

https://totallyamaha.net/showthread.php/79136-Power-valves-upside-down-!?highlight=Power+valve+bevel

BEVEL DOWN! Flat on top. They won't fit quite right with bevel up but will go in.

 

[super1c]

View attachment 63189View attachment 63190

Good pics of correct way

 

[Woody255]

I stand corrected! Makes me want to go double check mine. Thanks super1c!

 

[putzy]

And I thought they should go in like the picture on right, thanks for picture,

 

[putzy]

Has anyone ever tryed Sierra carbon free or Omc engine tuner on powervalves, I soaked my valves in it for 1.5 days and then wiped them off, perfectly clean, no effort whatsoever, works great on carbs and jets also, use it in the marine industry all the time, great stuff