SnowBandit
New member
Can I run 87 in a stock viper that will not be run at WOT very much. Maybe a short burst here or there.. Speed limit is 45mph here.. Thanks for the info. I have been running 93 in it up till now but have sold to my dad and he will not push it hard at all.
n2oiroc
New member
i usually run 87 and have done long runs with no problem.
woofer700
New member
run 87 all the time in all our sleds, never a prob.
Same here, never had a problem.
AndyC
New member
I've run both at different times and it doesn't seem to may any difference on it. I usually always run 87.
read my post on powervalves and 2 stroke oil... Gary Oles nosboy
03viperguy
Moderator
split the difference and get 89. not that much more and it is what yamaha recomends in the sleds