journeyman
Active member
Does anyone make a pre-filter for the Viper intake? It seems I always forget to look into this. Last weekend I was riding in northern Wisconsin and sure enough, I got alot of that fine snow dust into the intake which always freezes up my carbs and it starts running like crud. The easy remedy is to turn on the carb heaters and within a few miles it clears up. The bad part is when the carb heaters are on, it seems to drink more fuel acting like fatter jetting.
The other issue I always have in these type of sugar snow conditions is snow and ice building up underneath the tunnel. By the second day of riding, it is caked up pretty good under there and my 1.25" track start howling and grinding, unless I can hit a good jump and break it loose. Not sure how to remedy this one.
The other issue I always have in these type of sugar snow conditions is snow and ice building up underneath the tunnel. By the second day of riding, it is caked up pretty good under there and my 1.25" track start howling and grinding, unless I can hit a good jump and break it loose. Not sure how to remedy this one.
acnas
New member
Pre-filters:
http://www.mountainperformance.com/yamaha_engine_mods.htm
Haven't tried but a friend of mine sprays Pam cooking spray on his exchangers so the snow doesn't stick to them? Don't know if it works but he does it every ride??
http://www.mountainperformance.com/yamaha_engine_mods.htm
Haven't tried but a friend of mine sprays Pam cooking spray on his exchangers so the snow doesn't stick to them? Don't know if it works but he does it every ride??
journeyman
Active member
acnas said:Pre-filters:
Haven't tried but a friend of mine sprays Pam cooking spray on his exchangers so the snow doesn't stick to them? Don't know if it works but he does it every ride??
That's a thought I have had, but didn't know if it would work. Thanks for the MP link. I forgot about them. I looked at SLP and didn't see anything. I take it I would only need the kit for $20, not the $30 one being I have the short track model.
PS: another item I want is the blue Yamaha nylon front shock covers......anyone know who sells them? ....thanks!!
BigMac
New member
My son and I ride a lot out west in deep powder. His Viper would collect snow in the ram-air vents and bog. Mountain Performance makes a very slick prefilter kit for those ram-air cowl vents. We totally solved his deep-powder bogging problem with the ram-air pre-filters, a pre-filter over the airbox intake, and two pre-filtered vents drilled into the cowl under the dash/windshield.
Does anybody know if MPI or anyone else still sells these prefilter kits??? Thanks!
See them on ebay
ExpertXViper
New member
Outerwear Racing(google it) out of MI makes them. I have one for a viper to sell buts its up north right now.
I have the outerwear pre filter, I bought it on ebay for $10. Make sure you check on the filter after you stop for a break that there is NO water (snow that melted into water) on the filter. It will stall out your sled until you wipe it off.
These kits here are the ones I would like......BigMac said:My son and I ride a lot out west in deep powder. His Viper would collect snow in the ram-air vents and bog. Mountain Performance makes a very slick prefilter kit for those ram-air cowl vents. We totally solved his deep-powder bogging problem with the ram-air pre-filters, a pre-filter over the airbox intake, and two pre-filtered vents drilled into the cowl under the dash/windshield.
MPI has discontinued them. Never seen these on Ebay, but continue to look...
Anybody have full prefilter set up for Viper they want to part with???