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wiesman
11-09-2004, 05:00 PM
my 450r backfires when the rev limiter is hit then shifted. it also backfired when the kill swich was turned off while still on the throttle. it has the hrc kit in it, is this normal or what could be wrong?
trick450r
11-09-2004, 05:14 PM
pretty normal...any big thumper will do that...
jgfarmsracer
11-09-2004, 07:14 PM
Originally posted by wiesman
my 450r backfires when the rev limiter is hit then shifted. it also backfired when the kill swich was turned off while still on the throttle. it has the hrc kit in it, is this normal or what could be wrong?

have you rejetted it?????

if so may be to rich!
wiesman
11-10-2004, 07:24 AM
yes i put the hrc jet kit in with it. used the hrc needle and the 185 main.
jgfarmsracer
11-10-2004, 12:36 PM
lid on or off?

what exhaust?

needle clip position?

did you mess with the air screw?
jeepnrocks
11-10-2004, 02:18 PM
if you let off the gas and it back fires isnt your pilot jet a bit lean ?
450rRIPPER
11-10-2004, 03:08 PM
Originally posted by jeepnrocks
if you let off the gas and it back fires isnt your pilot jet a bit lean ?

I just read on 450r.org that poping when letting off the gas is lean fuel screw.
wiesman
11-10-2004, 08:48 PM
It has the HRC lid on it and the HRC silencer core. HRC needle in 3rd clip, stock pilot and 185 main. the fuel screw is about 2 turns out.