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jiggaman2401
02-23-2005, 03:55 PM
My 400 is giving me some issues.. I put a HMF slip on and rejetted the bike.. I put a 160 main 3.5 turns out on air/fuel screw.. Also a 40 pilot.. I also cleaned the carb.. Now the bike doesnt wanna idle.. Itll start for a few seconds then shut off. Anyone have any suggestions?
cals400ex
02-23-2005, 03:59 PM
is the bike fully warmed up? it may not want to idle if it is cold. also, is the idle adjustment high enough?
jiggaman2401
02-23-2005, 04:03 PM
IM gonna check the idle adjustment again.. I had to disassemble it and put it back in. Its almost like its getting choked up?
sprtrx300ex
02-23-2005, 05:00 PM
Sounds like your overly rich.

Put in a new plug (yours probably has carbon deposits on it)

Turn your fuel screw to 2-2.5 turns out from seated.

Try it again. A 160 sounds a little high, but it could be right depending on what elevation your at.


make sure your choke isnt on.
jiggaman2401
02-23-2005, 05:58 PM
My elevation is 430 feet.. Im thinking i am running to rich also.. better rich than lean tho right? THanks
muddy400EX
02-23-2005, 06:08 PM
ive got an HMF with a 165 and it runs and idles fine. i did have to higher the idle for the cold weather tho. maybe try that
jiggaman2401
02-23-2005, 06:14 PM
Originally posted by muddy400EX
ive got an HMF with a 165 and it runs and idles fine. i did have to higher the idle for the cold weather tho. maybe try that

DO you have the full hmf system or just the slip on?
nosliw
02-23-2005, 07:14 PM
when i first got my hmf i was really nervous when it didnt idle. i would get it started and rev the **** out of it to keep it going, blowing black smoke everywhere. turns out i had the choke on :o

moral of the story is to stay calm and look at the obvious things:ermm:
muddy400EX
02-23-2005, 07:19 PM
Originally posted by jiggaman2401
DO you have the full hmf system or just the slip on?


slip-on:)
jiggaman2401
02-23-2005, 07:20 PM
haha thats kinda funny cause i rode it a couple days ago when i got it running, i went to pin it and it kinda bogged down and i didnt know what was wrong.. Well turns out the choke was on that time also i was going nuts.. So now i made sure i checked everything and all the obvious is covered!