Polaris ATV Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
21 Posts
Discussion Starter #1
I recently installed a snorkel kit on my 2010 850 sportman xp and it doesnt run the same as before, has anyone had the same issue, does snorkeling have any effect on air fuel ratio
 

·
Registered
Joined
·
21 Posts
Discussion Starter #3
No other mods and its the snorkelyouratv snorkel kit. Well I did put a k&n air filter on it, exhaust is stock, engine stock.
 

·
Registered
Joined
·
5,753 Posts
I, and many others, run a K&N on the 850 without any issues, but still have all stock airbox. Is your iarbox sealed up properly and completely? What is different about how it runs now?
 

·
Registered
Joined
·
21 Posts
Discussion Starter #5
It idles ok, but when I go to give it gas it trys to cut out. I sealed the airbox up pretty good. I just now tried to start it and it woulnd start just crank. Finally got it to start and took duct tape and covered 1 snorkel completely, and the other snorkel I covered almost completely just a small slit for it to breath and it ran much better. Seems to me its getting to much air, but you said you have no problems with yours doesnt make sense.
 

·
Registered
Joined
·
5,753 Posts
The stock airbox opening is about 2/3 the size of one of the pipes on the snorkel kit you have. More than likely it is getting more are than it was and the only fix is to add more fuel with a programmer.
 

·
Registered
Joined
·
21 Posts
Discussion Starter #7
Thats kind of what ii was thinking, needed to be sure though and thank you. Now do you have a preference for a programmer?
 

·
Registered
Joined
·
5,753 Posts
I've always used Dynojet power commander III or V on everything I have to put one on, or the auto tune if available. The auto tune is the best. I've only done a couple atv's, but LOTS of motorcycles. Their software is super easy to use, almost always has a preprogrammed setup for the pipe and intake combo I'm installing. Only one that I ever had to play with was my 05 Suzuki Boulevard C90. And that had my pipes in it, but I also have a high flow air filter and an intake modification as well as a little engine work done to it. So that's really my own fault. They come vehicle specific and are completely plug and play and use your laptop and a usb interface to program them. Plan on about $400 though.
 

·
Registered
Joined
·
21 Posts
Discussion Starter #9
Hey thanks for the help, I figured on spending around that much, guess I'll be on the computer looking it up, again thanks
 

·
Registered
Joined
·
95 Posts
you effectively put a cold air intake on it. so it probly leaned out the air fuel mix. It is like the difference of breathing thry a straw and a garden hose.
 
1 - 10 of 10 Posts
Top