GSX-250...help?

[Salival]

Hey folks,

I'll give the full story just so you know what the deal is. Skip to the last paragraph if you can't be bothered reading.

About three months ago I dropped my GSX-250. No major, couple of scrapes on the bike (and the body!) and a smashed indicator but no real damage. Kinda lost my nerve for a while and didn't get around to getting a new indicator for about two months. A friend and I put the indicator on and popped a little more oil in the bike, lubed the chain, blah blah. I then rode it up to Ohakune from Welly and it was running rough as all hell and blowing smoke (I thought it was the dodgy petrol I bought in Hunterville!). I guessed it was because it hadn't been ridden in a while but after it didn't sort itself out I got TSS to have a look at it. Apparently we'd over filled the oil (can't have been by much) and that had fouled the plugs, so they put new plugs in and cleaned out the airbox, etc etc.

It's running a whole lot better and much smoother, etc, but for some reason it outright refuses to rev over 9.5kRPM and loses pretty much all power going up hills. I tried to go for a blat over the Rimutakas today and turned around before it got steep because the bike just dies as soon as it hits a hill. It'll do 110ks alright on the flat, but ask it to go past 9.5kRPM and it feels like it 'runs out of puff' completely. It'll rev right out if the engine's not under load.

Has anyone got any ideas what might be causing this?

Thanks in advance,
Ben.

[geoffc]

Hi
Try replacing the air filter. If it is the paper type as I imagine, any oil in that and you're starved of air at revs with resulting loss of power. It's my guess anyway. Cheers