Pipe/carby wanted for '82 XC or WR 250.

[Nitram]

Hi Husky folk,
The bike I've been racing in EVO has what I've been told is an XC motor.  It's disappointingly peaky and doesn't really grunt out of the corners very well.  A bit like riding a 125- you have to get it revving, and after years on Can-Ams, it doesn't really suit me very well.

I thought that the motor might be a bit clapped out but I've just taken the top end off and the piston is pretty new (looks like a Wiseco) and the rings are not worn.  So I'm thinking it might be either:

1.  The pipe.  The pipe looks very similar or even identical to one that Albert has on his bike- and i think his is a CR.  The only thing is that mine has had the header section reworked and it may be that it's a little shorter than stock.  Does anyone have a stock WR or XC pipe that they want to get rid of ?

2.  The carby.  It has a 38mm flat slide Keihin on it, that came from a late 80s KTM.  And it carburates fine- starts well and doesn't blubber etc.  But I'm thinking that maybe a 32 or 34 might make it a bit more rideable on out tight MX and grass tracks.  Especially for an unfit mug rider like me.  Has anyone has any experience with fitting smaller carbs than the 38 ??  What did they have stock ?  Does anyone have a stock smaller carb they'd swap for the flat slide ?

Any other thoughts on how to get it to pull from down lower in the revs ?

Thanks in advance,

Nitram       

[fatboycrash]

Gudday,
Face it mate, ya bikes a clapped out piece of crap. You got robbed. It's never gunna be any good. Ever. Those 82's were a hand grenade. I feel for ya. I feel so bad for ya I'm happy to take it of your hands for a reasonable price, seeing it's a POS and all... 
FBC

P.S. GMC might make an alternative pipe. Have you tried him? I'd be trying the stock carb too. Flatslides flow significantly better than round slides so maybe the midrange lurks in a stocker?? It'd be the easiest and cheapest way to go. What size do ya need? I'm sure one of us could lend you one to test.

FBC

[husky55]

Hey There,
Pipes. I'm not sure on. There were a lot of Pro circuit pipes around in the early 80's. If the Header portion has been reworked as in shortened that will make it "Peaky". I have a 250 Pipe but it's not mine, it's on loan till i get my 250 going and then i am going to sent it to Geoff Morris to have a pipe made. He does not have a Jig for a 250 so i need to send a sample.

Carb: Standard i believe was a 38MM Mikuni. Brand new from Townsville for around $220. I'm about to rejet a 430 38mm Carb to fit up to my 250XC.

Hope this helps
Cheers
Husky55

[Lozza]

That's as good as it gets I think port timing will have a lot to do with it.