Aprilia RS250 Help

[thesedays]

Sounds like hydrolock or a seisure. Remove the plugs and see if it will move when kicked (and see what if anything spews out of the plugs). If it's petrol (did you leave the fuel tap on?)...your carbs will also need checking and possibly new needle valves. With regard to oil..use the best you can and DON't mix brands / types in the same tank as different types can react and block up the oil feeder pipe.

[Ixion]

A conventional piston seizure seems unlikely. The machine was apparently running OK when it was stopped in the normal course of events. It had not recently had a new piston. The odds of a seizure at the exact moment it was stopped would be very low. It's not just a jammed kick starter pinion ?

[SimJen]

the only issue with running full synthetic, is that on some bikes the wet clutch plate doesn't like the oil. check the owner's manual for the recommended oil.

btw your RS sounds fucked. i'll give you a grand for it.

Two stroke oil is put in the pump oil reservoir, not the gearbox oil.
And gearbox synthetics should no longer have any effect on 4 stroke clutches....if it is made for motorcycles then it should have all the correct friction modifiers etc to enable clutches to still work well.
I think a lot of early problems with clutches and synthetics were caused from Car type synthetics being used. Once the main manufacturers came on board with a specific bike only mix, all the probs pretty much vanished....

[RS 250]

Been to busy at work to do anything about it yet. I'll get on to it this weekend asap.Regardless though i'll get it into a bike shop next week to be checked out. I hope it's not fucked I've spent shitloads on it.(Carbon airbox,carbon guards,braided lines,arrow exhaust,wave discs,etc. I might be selling RS 250 parts shortly.

[ZorsT]

what use is a carbon airbox?

[Mr. Peanut]

Don't question the carbon, it's just better.

[imdying]

Sex appeal naturally!

[Madness]

Carbon Airbox?? There's your problem right there mate.

[marty]

Two stroke oil is put in the pump oil reservoir, not the gearbox oil.

oh yeah. blonde moment...

And gearbox synthetics should no longer have any effect on 4 stroke clutches....if it is made for motorcycles then it should have all the correct friction modifiers etc to enable clutches to still work well.
I think a lot of early problems with clutches and synthetics were caused from Car type synthetics being used. Once the main manufacturers came on board with a specific bike only mix, all the probs pretty much vanished....

true. people don't always use the right oils though.

[marty]

Two stroke oil is put in the pump oil reservoir, not the gearbox oil.
.

oh yeah. blonde moment...

[RS 250]

I took out the plugs and tried to kick it over,but i'm afraid it looks like she's dead........

[Mr. Peanut]

Take it to the mechanics? RS250's are worth saving as they are not made anymore. Two stroke engine are not a big deal to fix either.

You'll thank me in 20 years when they go for 25k

[imdying]

Yeah, if it was running ok, it's probably not too bad to fix. Worse cases... siezed and rooted the barrels and pistons, not much over a grand... powervalves dropped in and caused mucho damago, under 2 grand.

[2much]

I still doubt it's seized... Put it in 6th and try turning the engine over by spinning the rear wheel by hand. Probably best to use a paddock stand if you've got one.

[Cajun]

was wondering why i not seen you out about on that bike for a while.

I am on the yellow gsxr 600, that lives further down welcome bay road, i see you every once and a while