Hey guys, any help here will be very appreciated. I am currently running a 2012 pro 600 155. The problem I am experiencing is as follows, when I am riding at lower elevations the sled flat out rips, throttle is crisp and it pulls a consistant 8150 rpms, but once I get up higher in elevation, the sled starts to run worse, its starts to feel lazy, it has a low rpm bog and only pulls 7700 to 7900 rpms. When it is doing this it always fouls the mag side plug. It isnt uncommon for me to burn through 2 plugs a ride. It currently has an mbrp can, and PAR 12.5:1 head, airbox mods, bikeman pipe mod, and clutch work done. This problem has been around since it was bone stock.
Thanks for any input,
Jordan
Thanks for any input,
Jordan
