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View Full Version : more speed out of a trx90


AtvMxRider
03-21-2004, 06:43 PM
What can I do to get more power out of my son's trx90 without boring it out? He has a pipe and filter now he just needs more power.
03-21-2004, 06:59 PM
look into different airbox and take the airbox lid off then you can think about changing the gearing to howhe wants his power.
BSTURDIVANT
03-21-2004, 07:07 PM
Unplug the 4th gear rev limiter wire -can't remember the color- just trace it back from the cdi box. Single wire that connects to engine.
AtvMxRider
03-21-2004, 07:09 PM
Originally posted by BSTURDIVANT
Unplug the 4th gear rev limiter wire -can't remember the color- just trace it back from the cdi box. Single wire that connects to engine.


Already did that. It's the pink one.
03-21-2004, 07:09 PM
why would you want to unplug the rev limiter wire...pretty stuipid if you ask me
AtvMxRider
03-21-2004, 07:10 PM
Originally posted by Overkillkfx400
why would you want to unplug the rev limiter wire...pretty stuipid if you ask me


It's not actually a rev limiter. It allows you to go faster in 4th gear is all.
quadfamily
03-21-2004, 08:31 PM
Honda calls it the "top gear limiter" or something like that. The next logical step would probably be a cam Jerry.
QuadJunkies
03-23-2004, 01:11 AM
Jerry, have the Carb modified a bit , maybe give PeakPower sports or Hetricks a call, they know alot about the minis....;)
AtvMxRider
03-23-2004, 05:06 PM
Well I ordered all three Elkas today and some wheel spacers so hopefully that will help alot.