nebraskavmax
New member
My 94 vmax 600 is running bad. I rode it yesterday and put about 30 miles on it and it ran fine. We had about 12 inches of snow last nite and went to go ride it today but hear is the problem. It started fine it was 11 dagrees out started to ride but it won't rev up past 4000 and smokes alot no power. I replaced the plugs no change the plugs were wet. I noticed the carbs were really frosty. Any help?
mopar1rules
Active member
is there a tors on the carbs that could be acting up?
nebraskavmax
New member
It does I haven't bypassed it yet but I don't think that is the problem the tors seems to be working the light is not on or flashing
i have run into this problem alot with the vmax twins like this. Snow is getting sucked into the airbox and the carbs. What is happening is there are little holes in the throat of the carbs(at the bottom) that flow air. They get plugged up with snow and dont let the right amount of air in, making the sled run extremely rich. Its a fail-safe kind of thing that richens the mixture(way too much) to keep the snow coming in from taking out bearings and rings.
Take the airbox off and blow the frost off those little air jets and it will run right again.
Only way to fix this problem is to find a way to keep snow from getting down your airbox. Prefilter mesh or something similar does a good job
Take the airbox off and blow the frost off those little air jets and it will run right again.
Only way to fix this problem is to find a way to keep snow from getting down your airbox. Prefilter mesh or something similar does a good job
nebraskavmax
New member
I will check that out thanks
nebraskavmax
New member
I checked the air box and it is full of snow and the bell of the Carb is full of ice
There should be a foam prefilter in the hood. There is a slot that runs left to right just below the plastic dash piece, right above the fiberglass hood between the bars and the speedo. It's part #20 or 21 on the windshield page of the parts fiche. http://www.portyamaha.com/fiche_ima...HA&category=Snowmobiles&dc=31&name=WINDSHIELD
nebraskavmax
New member
Well I cleaned the box and the bell of the carbs. Went for a ride it is better but not right. Still has a lack of power. I removed the air box and started the sled if I hold my hand in front of the right Carb it suns better and has snap when I blip the throttle.
smokingcrater
Member
nebraskavmax said:
you don't want to run it very long like that, it is going to be very lean without the airbox on...
anyway, compression test time i'd say.
putting your hand in front of the carb will richen its mixture. if it runs better like that, it means that carb is running lean. It is very unlikely that one carb will run lean unless it is dirty. Go through both carbs and clean the hell out of them. ALL jet, nozzles and holes.
mbarryracing
Member
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- Aug 30, 2007
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Did you drain the carbs and get all the water out? If there was ice and snow packed in the bell, it ingested some for sure.
nebraskavmax
New member
Did a compression test 100psi on both. Took the carbs apparat and the both had water in them.I hope that fixes the problem.
nebraskavmax
New member
Got her fixed. She runs like a stripped asses ape. Thanks for all the help.
motor tech
New member
water in the bowls should not come from air intake,your fuel is bad or good fuel with water in it