2 stroke engine rebuilds

[Deano]

A few hundred bucks every 10,000 km's could save more dollars every 20,00km's or so.

I rode my NSR250R hard for 26,000km's without doing anything to the top end. It gradually ran out of power and in the end it struggled to run at all.

When I stripped the top end, one piston had melted rings, a hole in the top, both powervalves were rooted, and my barrels needed boring and relining.

This added up to about $2000, but would likely have cost only $6-700 for pistons, rings and gasket kit, if I had done a top end rebuild at 20,000km's.

I ended up buying an import motor for $600, which was obviously quite fresh -getting on the throttle a little early had the bike drifting out wide coming out of corners.

If I was racing an RG150, I would consider a top end rebuild at least every 10,000kms, and possibly every season or two. (How long does it take to race 10,000kms ?)

[Magua]

Hey, that might be the problem with the valves on my bike. The battery for some reason will be drained after not using it for a while, requiring me to do an mx style flailing of the leg untill the neutral light brightens up again. After that, it'll take about 20-30 minutes riding untill it's sweet. I thought it was that it didn't warm up very fast, but it might just be the powervalves not moving very quickly due to the battery power being low

Shit, same thing happens here. I best look at getting a new battery.

[Coyote]

And dont forget to check your piston return spring too rumba

No need to worry, the shop said it was in perfect order. And I've had the crankshaft splines reticulated too. Don't want them to fail again