ixkv84u Posted January 17, 2003 Report Share Posted January 17, 2003 I have heard 20 and it seems like over kill to me. I'm talking about a shee with the normal bolt ons and trail / mx porting if it makes a difference. I wanted to see what every one thinks :wink: Quote Link to comment Share on other sites More sharing options...
Phast Posted January 17, 2003 Report Share Posted January 17, 2003 20 hours!!! :shock: DAMN!!! :shock: Ive seen stock bikes with just pipes and air filters go for like 7 years! I go by comp readings and right now Im at 165 so when I get down to 110/100 Ill rebuild or when I blow it up on a monster hill climb! Quote Link to comment Share on other sites More sharing options...
Meat Posted January 17, 2003 Report Share Posted January 17, 2003 my RZ is 18 years old and has 8000 miles on it..... and its still running on the stock bore and pistons. I have never checked the compression on it, it runs great and starts up on 1 or 2 kicks. Quote Link to comment Share on other sites More sharing options...
Screamin_Banshee Posted January 17, 2003 Report Share Posted January 17, 2003 I agree, go with the compression readings. Your motor will tell you when it needs a rebuild. I have been running the same top end for 2-2 1/2 yrs, with no problems. Hell that shee is still kicking 170lbs.... Quote Link to comment Share on other sites More sharing options...
BenBB Posted January 17, 2003 Report Share Posted January 17, 2003 I think there's way too many variables to say X number of hours or tanks of fuel, even as a rule of thumb. I agree that compression is the best indicator, along with a little common sense. I put 140 hours on my '96 before I started to see lower compression, I re-ringed it and got another 60 hours before I hung a ring on the exhaust port. So for me, under normal circumstances, I'll re-ring between 40 and 50 hours and topend between 80 and 100 hours as preventative maintenence, unless I see lower compression along the way... Quote Link to comment Share on other sites More sharing options...
bansheeman1 Posted January 18, 2003 Report Share Posted January 18, 2003 My stock 98 shee has never had a bolt turned on it not even a jet It still runs great and can run with a piped raptor I aint touching it till it goes boom Quote Link to comment Share on other sites More sharing options...
ixkv84u Posted January 18, 2003 Author Report Share Posted January 18, 2003 Good to hear that I don't need to be concerned about my topend for a while. :wink: I changed domes yesterday and went ahead and pulled the jugs to look at the pistons and rings. At 30-40 hours The pistons still look very good. Quote Link to comment Share on other sites More sharing options...
Franka21 Posted January 18, 2003 Report Share Posted January 18, 2003 If its not broke dont fix it Quote Link to comment Share on other sites More sharing options...
ixkv84u Posted January 18, 2003 Author Report Share Posted January 18, 2003 If its not broke dont fix it What are you recommending? That we wait untill a piston skirt comes apart and turns a $250.00 topend rebuild into a crank replacement or more. :shock: :roll: :wink: I had it happen, not fun to go without riding for months A two bit mechanic with a screw driver, 12mm socket and a tourqe wrench should be able to pull the jugs and put them back in 6 hours, easy. Makes me feel better! Quote Link to comment Share on other sites More sharing options...
HiRoller Posted January 18, 2003 Report Share Posted January 18, 2003 my RZ is 18 years old and has 8000 miles on it..... and its still running on the stock bore and pistons. I have never checked the compression on it, it runs great and starts up on 1 or 2 kicks. I was walking down the street yesterday and here comes a motorcycle up from behind me. I think "hey, that motor sounds familiar" It went by and it was a sweet RZ350. Cool! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.