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View Full Version : Damn 400ex cold hearted somna B%^H


Thumpin440ex
12-06-2010, 03:25 PM
It has been in the mid 30's , mid 20's at night for a week or so here in my part of town.. The other night I went to go for a small blast, lord can't get over these 400's being such bastads to start... I even took the heater and blasted it on the case's for some time to warm it up.. Other wise it would have killed the battery.. Then again today, but I just said screw it, came in side LOL.. I have owned the bike since new in 2000, it has always been this way in the colder weather.. I even think more so now since I did the engine...


John
BenHonda400ex
12-06-2010, 03:57 PM
Do you pump the gas a little bit like 3 of 4 times before you start it?
CJM
12-06-2010, 04:13 PM
Mine somewhat cold blooded. I pump the throttle like 3-4 times, put full choke on and start it. It will die then I do it again and it will run then I put on half choke and let it run for about 30 secs and take off. Turn choke off as I ride about a minute or less and it idles.

Otherwise I let it idle at half choke for a good minute and then take choke off.

40 pilot too lol..
AtvKid4Eva
12-06-2010, 04:14 PM
when i had my 400 i removed the choke and it would always start fine in the dead of winter after pumping the throttle a few times..try a 42 pilot.
Thumpin440ex
12-06-2010, 04:14 PM
No. Can not do that with the 450 carb, as it has a accelerator pump on it, so will flood it super easy..

John
AtvKid4Eva
12-06-2010, 04:15 PM
oh nm..your running a 450 carb...lol good luck
AtvKid4Eva
12-06-2010, 04:15 PM
yeah i didn't see u were until i hit post..
rubbersdown
12-06-2010, 04:16 PM
Just go up a size on your pilot and you should be fine.
bherriman
12-06-2010, 04:39 PM
I thought only the 06+ 450 carbs (fcr) had acc. pumps?
Thumpin440ex
12-06-2010, 04:44 PM
Originally posted by bherriman
I thought only the 06+ 450 carbs (fcr) had acc. pumps?


No sir they all do. The acc screw on the pre 06's is a phillips screw while the 06 up is a D shaped adj type screw..

John
coreo5
12-08-2010, 10:34 PM
the stock 38mm 400ex carb has a acc. pump on it....does it not?
rcatvrider
12-09-2010, 04:41 AM
Pretty sure it does hence why pumping the throttle makes starting without the choke possible. I have a 42 pilot choke removed and it takes a while but i can start in any temperature. I think my battery is getting weaker though.