kx450f piston

[fatzx10r]

i've not long brought a 07 kx450f and i was woundering when i should replace the piston. the owner's manual say's every 30 hour's, but i have been told by a few different people that i could stretch it out to about 50 or 60 hour's. i know that the bike had been well looked after and been serviced every 5 hour's, it's done 33hour's now. so should i do the piston and ring's now or wait a bit???

cheer's

[T.W.R]

Unless you're racing it, you'll get 60hrs before having to do a piston easy

And just run it on standard 91oct fuel too, don't screw around running high octane the valves don't like it

[scott411]

450's are not hard on top ends, 60-80 hours with normal riding is pretty easy, we have has guys trail riding get up around 80-90 hours on them with little wear,

and further to TWR above do not put leaded fuel in them, as they definatly do not like it,

[fatzx10r]

cheer's guy's. im just using it to do a bit of dirt bashing with some mate's, but i will be using it for some motarding aswell when i get it set up, so it will be givin a bit of a thrashing now and then

[scott411]

if you are going ot motard it i would check the top end at about 60-70 hours then, you will have a ball on it,

[T.W.R]

but i will be using it for some motarding aswell when i get it set up, so it will be givin a bit of a thrashing now and then

I reckon slotting the donk into a KR1 chassis would be

if you are going ot motard it i would check the top end at about 60-70 hours then, you will have a ball on it,

They're fun enough on the road with knobblys when you can get traction & keep the front end on the deck

[scott411]

They're fun enough on the road with knobblys when you can get traction & keep the front end on the deck

even more fun with not much traction and foot up drifts,

[T.W.R]

even more fun with not much traction and foot up drifts,

ha yeah one of customers found that out the hard way on our shop bike when he decided to give it the berries leaving the forecourt onto the side street which was slightly greasy, my boss was and we were waiting for something to happen; when the guy returned I'm sure the street wasn't the only greasy thing that morning