Sorry for being a retart. I can't start my 400ex in the cold. It is in the single digits in Michigan now, and I can't get it fired. I have a new plug, full choke, half choke, etc. Any advice? Is there a cold weather plug that I should be running? Any advice would be much appreciated.
tom

 

Boy I tried to start mine the other day and man I almost lost faith then she slowly came to life! What you might want to do is heat up your garage or um... some where amd let it sit for a while and warm up. Then if you get it started run it every week or less. If that dosent work try to pop start it. On mine I just had to turn it over a bunch because the gas hadent gotten to the carb yet from sitting for so long (thinking that I was going to ride my snowmobile ha no snow). I would try all of that first.

 

install a 42 pilot jet in the carb it will solve all of your starting problems.

v581

 

42pj works good, but lately around here it's been hitting 20's in the morning and when i try to start it i need to use halfchoke

does it fire at all?

 

No sir, it won't even fire. I got a brand new plug in it. I am thinking of spraying some starter fluid down the airbox shoot or in the sparkplug hole. I got the charger on the battery for like the last four days, so I might get lucky tonight and am hoping I do as we are about to get a foot of powder. Thanks for your help.
tom

 

luckly you I need some snow! I hope you get it going.

 

Don't u guys even think about the animals? When it snows lots of poor animals die and get colds. Even sometimes fevers. That's why i have a barn with a heating system. I put any animals i can find in there. Including bears, cougars, bobcats, deer, elk, rabbits, birds, racoons,possums,and all others i can find. I'm very dissapointed in u guys for wanting it to snow for ur own pleasure while animals don't have a house that's warm to sleep in at night. I'm verry disgusted in u guys!! Selfish pigs!!![img]i/expressions/face-icon-small-disgusted.gif[/img][img]i/expressions/face-icon-small-sad.gif[/img][img]i/expressions/face-icon-small-mad.gif[/img][img]i/expressions/face-icon-small-frown.gif[/img]

 

I thought that is why God gave them fur.........................should I half choke it in cold or full choke it?

 

i had the same trouble yesterday...she wouldnt start for anything. i have a kerosene heater in my garage so i fired that up and faced it towards my bike for about 15 mins... after that she started right up. when i used to have my old lt250 2 stroke havin this heater mad life a lot easier... tryin to get those 2 strokes to start in the cold sucks.

 

yeah,,,,up one size on the pilot

and maybe a double squirt on the thumb throttle,,,,,full choke

I always made sure my valves were in check on my 400.,.,...made starting way easier,,,especially in the winter