Mellowyellow
XS650 Addict
Hi guys,
I know its not a xs but ive got some issues with a kx450f. I thought i would ask you guys because any dirt bike forum seems to be loaded with bad info.
So here goes.......
Bike was overheated end of last season (i could hear the rad boiling)
Getting bike ready for spring (changed oil, set the valves, front fork seals, tires )
-fired bike up and once warm it will back fire when reving.
-at higher rpms i can tell its missing and not running correct.
-then after about 5 minutes of running on stand rad starts boiling again.
-when reving (even when warm) seems to smoke lots (blue).
-So i checked anti freeze and there is no oil in it. (good sign)
-checked oil no anti freeze in it (good sign)
-ran bike with cap off and coolant is returning to rad and no bubbles.
I thought it might be a head gasket but im not sure.
Piston?
Valves?
Head gasket?
Im lost guys. I would hate to drop it off at the stealership! Hope someone can help.
I know its not a xs but ive got some issues with a kx450f. I thought i would ask you guys because any dirt bike forum seems to be loaded with bad info.
So here goes.......
Bike was overheated end of last season (i could hear the rad boiling)
Getting bike ready for spring (changed oil, set the valves, front fork seals, tires )
-fired bike up and once warm it will back fire when reving.
-at higher rpms i can tell its missing and not running correct.
-then after about 5 minutes of running on stand rad starts boiling again.
-when reving (even when warm) seems to smoke lots (blue).
-So i checked anti freeze and there is no oil in it. (good sign)
-checked oil no anti freeze in it (good sign)
-ran bike with cap off and coolant is returning to rad and no bubbles.
I thought it might be a head gasket but im not sure.
Piston?
Valves?
Head gasket?
Im lost guys. I would hate to drop it off at the stealership! Hope someone can help.