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
New member
Beveled side up as I recall. Good luck.
YAMMIEGOD3:16
Active member
yes, flat up 3:16x (yammie tony)
Last edited:
super1c
Super Moderator
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.
BEVEL DOWN! Flat on top. They won't fit quite right with bevel up but will go in.
super1c
Super Moderator
Woody255
New member
I stand corrected! Makes me want to go double check mine. Thanks super1c!
And I thought they should go in like the picture on right, thanks for picture,
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