New FMF
#3
You can get some backfire relief by tweeking the fuel screw a bit to richen up the pilot circuit when you close the throttle. You may affect throttle response if you go too far. Good luck.
#4
Mine backfired ever so slightly on decel.
#5
Aside from the air/fuel mixture screw did you follow the instructions for attaching it to the header. Your suppose to use high temp sealant and let it set for 24-hours before firing it up. An exhaust leak can cause that too.
#6
I does sound good though
#7
Just giving you a heads up on the Powercore 4 it WILL melt your airbox (Happened to me) so what I did is around where you join it into the header I put some exhaust tape to keep the heat inside of tailpipe. Just a friendly suggestion!
#8
That really happened to you?
I have had the powercore 4 on the klx for over 12 months and had no such issue or even heard of that issue.
#9
Really? Might of just got unlucky or something. The side of the airbox that is closest to the tail pipe near the joint is all melted up, not a huge hole but it's still a hole. I've had mine for, 10,000 KM (6000 miles?) with the Megabomb header. I'd post a picture but I can't seem to upload it.
#10
Really? Might of just got unlucky or something. The side of the airbox that is closest to the tail pipe near the joint is all melted up, not a huge hole but it's still a hole. I've had mine for, 10,000 KM (6000 miles?) with the Megabomb header. I'd post a picture but I can't seem to upload it.
Did you bend the rear right foot peg mount outwards for a better exhaust fitting?
Then again I haven't added any head pipe I'm still using the stock header, maybe that's what has caused the melting...