Does anyone know the stock jet size in a 450 Foreman, and what is a good working main jet for a K&N filter equipped 450

 

Main Jet: #130
High Altitude Jet: # 120
Slow Jet: #45

 

Wow I am surprised, I read the instructions for a K&N jet kit for a Foreman 400 and they said stock in the 400 was 130 and that with the filter and aftermarket exhaust installed to go with 142 mains. Its hard to believe a 400 and 450 Foreman have the same jets.

Learn something new every day

 

The numbers are taken from my Honda 450 ES Service Manual.;-)