[Rusty69]

Has anyone had problems with installing k&n filters in there 13 scrambler 850?

 

[tanglefoot69]

Same airbox as the Sportsman XP 850 i think.No issues putting mine in.

Sent from my GT-S5690M using Tapatalk 2

 

[Rusty69]

K&n

Ya mine backfires like crazy with the k&n installed

 

[jkstockwill2006]

My 2012 850 backfired with my stock and k&n filter, something to do with break in period, I have 650 miles on it now, I run k&n filter and it runs great, no backfire issue at all

 

[Rusty69]

I hope that's the problem with mine? Same engine.
Thanks Russ.

 

[Rooskey]

Try a hotter spark plug

 

[InRBigness]

backfiring is common in the 850 for the first few hundred miles or so. Nothing to be worried about. Hotter plugs will help with fouling and may stop some of the backfiring though.