[Jibberwobble]

Originally Posted by Weldangrind

So many questions!

This is the carb I like for 200 / 230 China motors: http://www.ebay.com/itm/Carburetor-C...4979d6&vxp=mtr I jet them with a 112 main and 27 slow at sea level for a 200, 115 / 30 for a 230.

This carb looks good, does it bolt straight to the engine or are the holes a different pitch? Just a thought because if it were sitting that close to the engine it may not get in the way too much.

Originally Posted by Weldangrind

This is the intake tube I have on my atv: http://www.ebay.com/itm/30MM-MANIFOL...fb51b8&vxp=mtr Not sure if it costs any power, but I doubt it. The air and fuel are happily sucked uphill by engine vacuum.

Funny enough I've been watching that one for a while wondering if it's the answer to some of my problems, just going off to have a look through your threads for a picture of it fitted (assuming there will be one somewhere). Shipping to uk is a bit scary though.

Originally Posted by Weldangrind

The clutch isn't normally that difficult; certainly no more than an average CG125. If you can't find a mechanical problem, perhaps this would help: http://www.ebay.ca/itm/Chrome-Hydrau...4c0632&vxp=mtr

Well when I compare my clutch lever resistance with other peoples I would say mine was around ten times heavier! I can pull most clutches in with a couple of fingers but with mine I need a good grip and most of my strength. Oddly I dont notice too much when we're out on track most likely due to Adrenalin. Havent had a chance to research how it all goes together yet but will have a look into it and go down the hydraulic route if all else fails. Thanks for the link

Originally Posted by Weldangrind

You're using a 17 tooth countershaft sprocket and a 24 tooth rear sprocket? I can't believe that little motor can use such tall gearing. I figured that 40 teeth would be the outer limit for a rear sprocket.

Indeed my tiny 11" tyre on 5" rim brings the gearing back down.

Originally Posted by Weldangrind

I would certainly try a racing CDI, or even a programmable unit.

Will have a look into this and try and find something. I'm a bit lost with the CDI's to be honest, is a 125 CDI different from a 200 and if so what does it do differently? I need a spare so will get scouting, I think it's a bit more of a struggle to find this chinese stuff in the uk and the unknown import duties bother me a bit when ordering offshore.

Originally Posted by Weldangrind

I've never messed with timing. I would focus on smoothing the intake port and polishing the exhaust port first.

Ok will have a peek into the inlet/outlet and see how they can be improved, this sort of thing is up my street. I can get 11.5hp from a 40cc w/c 2stroke with the aid of my trusty dremel and it's friends! Time consuming but satisfying.

Originally Posted by Weldangrind

I believe this is the JT sprocket that fits your countershaft: http://www.jtsprockets.com/catalogue/sprocket/JTF259 It only goes to 17.

Thanks, done a bit of looking now and have found some chinky ones (18t) very cheap that I think will fit the shaft so I will go for it and see if it fits in there, I'm sure it will be fine for experimenting.

http://www.fiddyparts.co.uk/index.ph...art&Itemid=107

http://www.ebay.co.uk/itm/PITBIKE-FR...item41732a3e3b

http://www.ebay.co.uk/itm/18-TOOTH-4...item41741f3a7e