I'll be at jellystone. I think Damian said he had some cabins.. (I guess we know where the party is!)
I think JD said something about trying to get sites at the state park.
Forgot about that brief stint.. Looks to be only the 89' and 90' that used the 4/156. RMATV shows the 87' and 88' using the 4/115's. 89' and 90' use the 4/156 then they switch back to the 4/115 for 91-06
I'd switch to the 4/115. Give you alot more options for rim size rather then just 10"
If you tried a 45 pilot and no change.. Sounds like a air leak. I'd do a leak down and rule that out first. Jetting a motor with a air leak is like a dog chasing its tail. That surface with your rider weight should pull a 15/40 gearing.
Ok, Jeff wasn't as lazy as I was. Good info :thumbsup: Never thought about the pump hoses though.. thats very good point.. So probably about a gallon or so of your 93 is 87...
Usually when I get into the 160's I'll run straight fuel. Timing wans't mentioned so I was assuming it was left at 0, . There are other factor that can promote detonation besides compression.. But I'll just stick to the question. I voted 165.