Re: Performance Modifying a Honda CBR150R

	Forum Index > General Discussion > Motorcycle Mods and Maintenance
Performance Modifying a Honda CBR150R

Printable Version

By: Anonymous: Anonymous () Saturday, August 13 2011 @ 06:24 AM ICT (Read 2915 times)

Anonymous: Anonymous

i put a new exhaust, and k+n filter on by cbr 150, but now has a flat spot between 5-7000 revs. how do i adjust the carb main jet to match the new mods? thanks!

Some of the posts here are originally posted as comments for article Honda CBR-150 modify

By: news (offline) Saturday, August 13 2011 @ 06:27 AM ICT

news

Quote by: Anonymous

i put a new exhaust, and k+n filter on by cbr 150, but now has a flat spot between 5-7000 revs. how do i adjust the carb main jet to match the new mods? thanks!

You can find some information on how to adjust the main jet of your carburetor here, Tuning your Carburetor - Idle and Main Jet Circuit Tuning

Active Member

Group Comfort
Level:: +32

Registered: 08/27/07
Posts: 1495
Location: Bangkok, Thailand

By: Anonymous: Anonymous () Saturday, August 13 2011 @ 06:28 AM ICT

Anonymous: Anonymous

For a free-flow pipe, main jet 2 sizes bigger, for filter add 1 size bigger, eg 3 sizes bigger on main jet and 1 size for pilot, jets can be obtained from any carburettor shop. Rule of thumb for air screw is 2 to 2.5 turns out, bike must die if jet is turned in all the way, otherwise you have a leak on the inlet rubber. Happy tuning

By: Anonymous: Anonymous () Saturday, August 13 2011 @ 06:30 AM ICT

Anonymous: Anonymous

i made my bike a 177cc and i have a performance pipe on but it doesn't seem to do much. Is there something wrong with my jetting or what is the problem