sputtering at high rpm's

[bluebullie]

just the other day i was riding pretty hard on the track and all of the sudden my quad starts sputturing when it gets high in rpm... loaded it up went home cleaned it and put new spark plug in it and its still doin it. its got a rev limit kit and jet kit..... any ideas why this is happening.... this is the first time it started doin this. kits have been installed for a while

[HondaR]

usually when it sputters on top end it is the jetting ..its too rich maybe it has some dirt in it. if it just started doing it ...

[nosliw]

i would just do a good cleaning of the carb/airfilter/airbox/boots/ect.. IF you have the time that is. when i get problems like that (when i know it's carb related) i just do that cleaning and it always takes care of the problem.

[bluebullie]

is there a way to clean inside the carb without taking it off the quad? i know this is a dumb ? but just wondering..... thanks

[nosliw]

well.... not really. when im talking about isnt in the least bit hard. just take off the carb, take off the float bowl, clean the float bowl and clean the jets. easy. and 99% of the time is solves your carb problems (when you already have your carb dialed in that is)

[bluebullie]

just use like carb cleaner or what do u use

[HondaR]

i use the super tech carb cleaner from wal-mart its cheap and works great ..

[cals400ex]

any other mods besides the rev box and the jet kit? what size jet you running?

[bluebullie]

not real sure what size!!! honda shop installed everything

[2muchquad]

you may have to go with leaner jetting with the temp getting warmer and all.sounds like its running rich and loading up on top on you.;)

[cals400ex]

take that carb apart and see what size is in there. my bet is that your too big.

[hatch]

thanks guys