Icehouse
Um, the 86 doesn't have a 6th gear.

 

I'm turning a 14T front sprocket with stock porting and have good low end power. Even for mx I don't think you'd want less than a 13T with the 85-86 5 speed tranny.

 

Well, the stock sprocket is 12 and it seems to give the perfect balance of torque and top end. I tried a 13 tooth for the sand dunes, and it didn't pull the hills as well.

 

hey sam, what does your lt top out at with that 14t sproket?mine tops out at 68-70 with a 13t and advanced timing.
scott

 

Where do you buy sprockets anyway?

 

If you don't want spend the exxtra $$$$ for engine modifications and if you are not already using....
try racing fuel like VP racing fuel C-12 you pick up a few extra horsepower threw your low mid and high ranges.
but on the west coast 5 gallons cost about $45 still expensive but give it a try!!!

[img]i/expressions/face-icon-small-cool.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-confused.gif[/img]

 

you can buy sprokets and chains from Renthal, i got mine there. Some arent cheep but they make good use of how long they last. I bought my lt250r from some guy that said that it had the chain and sprokets since '92. www.renthal.com the chain is still flippen workin good


-----------------
1986 Lt250r

 

Scott,
Last time I gps'd, it topped out at 73 but I had the airbox lid on so it was running kinda rich. I think I'm gonna drop to a 13 'cause I'm looking for more low end in the trails.

Quetip,
I thought the only advantage to higher octane was in preventing detonation in higher compression engines. How does this make extra HP?