How about a general guide to overhauling the new 4 strokes?
Besides checking the valves, at how many hours should what parts be replaced?
I know "EVERYTHING" varies, but there's got to be some kind of GENERALLY AGREED UPON MAINTENANCE.
If a bike runs great until it has 40 hours on it, does that mean EVERYTHING should be replaced? What is everything? I have a '03 YZ450F with 40 hours and it runs perfect. 30 hours are practice and 10 hours are racing. Nonetheless, do I blindly replace the Valves, springs, timing chain, piston, rings, oil pump etc.. ORRRR, tell the mechanic to just replace the parts that are beyond the spec limits? Now here's the second part of my need----Between the massive depreciation and the massive amounts of money on overhauling, I can't believe we have accepted this 4-stroke
movement. Plus, I can't see spending $500-1200 on a going on 4 year old bike. I look at 2 strokes in a whole "new" enticing way... Please help with my rationale????????????
Besides checking the valves, at how many hours should what parts be replaced?
I know "EVERYTHING" varies, but there's got to be some kind of GENERALLY AGREED UPON MAINTENANCE.
If a bike runs great until it has 40 hours on it, does that mean EVERYTHING should be replaced? What is everything? I have a '03 YZ450F with 40 hours and it runs perfect. 30 hours are practice and 10 hours are racing. Nonetheless, do I blindly replace the Valves, springs, timing chain, piston, rings, oil pump etc.. ORRRR, tell the mechanic to just replace the parts that are beyond the spec limits? Now here's the second part of my need----Between the massive depreciation and the massive amounts of money on overhauling, I can't believe we have accepted this 4-stroke
movement. Plus, I can't see spending $500-1200 on a going on 4 year old bike. I look at 2 strokes in a whole "new" enticing way... Please help with my rationale????????????