Compression for 800r

[4x4racing]

Mine is 140 but the top is fresh

 

[snopro]

Thanks. and I put new oil in after every ride and blow out the clutches.

Maybe another 2000+ in 'er, eh!

Give er' and remember the throttle is your friend.

 

[deaner]

How many miles are you guys putting on a set of pistons? Probably have a couple thousand miles on my sled and I think it is maybe starting to get a bit weak. I guess I should do a compression check to find out. Should a guy look at putting a set in? 2000 HARD miles. Im WOT most of the time, and am running a 14:1 head with 50/50 av. Ive heard the locator pin wants to come out on the stock pistons when youre running more compression. I shouldnt be getting any detonation though because I think I have way more than enough octane.

 

[treeboy]

Do a cold and hot compression check at wot and post your numbers than we can see what your compression and the fitness is at. Most times i'm doing our top ends around 3000km's but have let one go to 5000kms before the compression was starting to get on the low side.