in your profile bike jetting information change the pilot
jet to #25! type in pump nozzle #70 in other carb
information data block.
I was visiting the Internet and typed in Roadstar 1600 HSR42 Modifications, it responded back with Doc Shadows 2000 Roadstar 1600, HSR42 carb, #70 pilot jet "Nasty Boys" exhaust, my thought it was alittle mis-leading, but we had to find out why the rich jetting #70 ......
just thought what does Doc know that we do not?