high compression 4-strokes need rebuild just as much as their 2-stroke counter parts
swap?
- Thread starter Drifz1
- Start date
high compression 4-strokes need rebuild just as much as their 2-stroke counter parts
a basic topend rebuild will run around a couple hundred in parts(tons in labor). but a 4-stroke topend rebuild is much more complex than a 2-stroke, its definitely not an easy process and there is tons of of tolerances that must be met with the utmost accuracy and if you arent an avid engine builder i would highly recommend that you dont even touch your wrench and just take her strait to the shop
^ thanks for the info (rep cough lol) i dont understand how a droped valve could cause a bottom end to be rebuilt as the broken bit would be above the piston?
I have had my YFZ since 07, and I have not had to rebuild it... I regularly maintain my machine, change oil frequenlty, adjust the valves regularly, and it runs as strong as the day i brought it home...
^^Reliability is only as good as the mechanic lol going to meet him wensday eve ,hard to belive im giving all my favourite childhood toys for a quad lol
why lol? i said about the little china quad he said he can get it fixed for 20 if i want (cdi ) but i have a spare one, 1 was saying to one of the guys in school today that i might be getting it and he said hould buy it of me for 150 as it is if i do get it that i can get the new caliper same day! 
ofcourse im refering to race situations. since thats all i know. im sure with a fresh engine if you only mess around on trails and gentle tack riding you could get a several years with regular maintaining on a build. the big issue i tried to stress tho is that people seem to forget the 20hr valve inspection
^^^ would a normal car mechanic be able to check them? and i would need new gaskets wouldn't i ?
imo yfz is the best racing quad and i would like to start racing once i get money for boots and a transponder!
well guys ... i got it seriously fast i cried shifting into 3rd tought i was gonna die it does wheelies in 6th when im not even trying to wheel ... boy it scares the sh*t outta me!
seriously fast i cried shifting into 3rd tought i was gonna die it does wheelies in 6th when im not even trying to wheel ... boy it scares the sh*t outta me!
