fcr hot start prob.

[Goat33]

Does anyone know the thread size and plunger hole size of the hot start on a 06 fcr 450r carb. Gonna try to tap and drill er carb. for hot start.

[rubbersdown]

its a 12mmx1.0. You have to drill more then one hole though. You have to drill that for the cable nut thing but you will also have to ream out the plunger hole and drill a hole from the slide side into the carb to get air. And theres a hole to the venturi

read this...http://www.trx450r.org/forum/93-engine/155080-drilling-hot-start.html