Would drilling holes in the airbox of a 90 do any improvments?

 

Maybe but probably need to jet up on the carbs to compensate for the increased air flow.

 

what about removing the baffle in the muffler? would that make any difference?

 

not sure what's on the quad for a carb, but after putting holes in the airbox, rejet it. If you look at my link to photos, under quad pics, univents are a great way to mod the airbox. They are cheep and require a 1"hole, yet still protect from crap getting into the airbox.

 

the quad is a 88 mojave 110. its my boys and he learning skills but isnt tall enought for the 250r. not sure what carb, is there anyway i can figure it out?

 

I'm not sure, talk to your local dealer, or a dirt bike place. They should have the catalogs, and more than likely have the jetting and airbox mods to help you out.

 

IMO::: Your not going to improve it much. I'd leave it alone. [img]i/expressions/face-icon-small-smile.gif[/img]

 

Opening up some air in the airbox will help a little but your power will only icrease with a pipe. Removing the bafles inside the stock pipe will really only make it louder. Either way, anything you do to you engine's air flow will require a jet adjustment.

LT80, Give me a call 678-873-6253 after 5pm. Thanks, Tommy

 

thanks guys. i think im gonna leave it alone untill i can rejet it at the same time. since this little quad was only made for 2 years there are no performance parts that i can locate. I heard about chopping up a old pipe and adding a supertrapp for a different 110 to the end, do you think that would work out better?