[kevin292]

I have an 87 trx 250, do they make an air filter that mounts directly to the carb?

I have seen other models with a cone shaped air filter mounted directly to the carb, I didn't know if they made one for this model.

 

[t-rex]

just look at atv store find one thatll slide onto the carb.did this to a blaster might have to rejet too.

 

[Billy250X]

Yes you'll have to rejet.Just measure the carb in mm and find a K&N or a UNI.

 

[kevin292]

How do I dertimine what jets I need?

 

[Billy250X]

Just go up like 2 numbers from factory on the main jet.