450 sxf hard to start

[pm5112]

Hi there i have a 2008 450 sxf I bought second hand with 80 hours run time (unconfirmed). I am having trouble starting the bike when warmed up. The only way to start it is to turn up the idle to get it started. The hot start lever doesn't make a difference anymore. Also the bike has started backfiring under de-acceleration at highish revs. When I purchased the bike the hot start lever worked fine. I have only done 3 trail rides since i have owned the bike. Any suggestions would be greatly appreciated. Thanks,Paul

[WoodsRiderParts]

Time to check the valves! Have your local dealership check them out. That is likely the culprit.

Luke
www.woodsriderparts.com

[yog22]

buy a 2 stroke. wont have that problem again ha. damn valves