@Jens-Eskildsen It would make sense for the pump to be designed that way. The oil pump is controlled by two elements, indirectly from the primary shaft, and by the cable. However, if you look at the pressure at the crankcase using a vacuum gauge, I'm sure you'd see negative air pressure. Since my car has a vacuum gauge, I know when my foot is off the throttle I see like -0.8bar.

Been on the RD sites and they are full of info on these bushes ???? Shocked as I've done a lot of Dt's over the years and never had this problem. A firm called tss make billet power valves and bushes and there is talk of boring out old bushes and having a sleeve pressed in.

big thanks for all the replys.got it all running today.replaced the clutch as well.cheers

Agreed on the verniers you cant meassure the cylinder precisely with those.

As said, two strokes smoke. So just saying it smokes isn't an indication of how good the deal is. If it's blue smoke, then at worst the piston rings are worn out. If it's black smoke then it needs new crank seals. Neither are really a problem for a two stroke engine to be honest.

@Calum also If you look close it looks a slight shade of gold whereas 2 stroke is black alll the way through so +1 on gearbox oil

@Jens-Eskildsen If the bottle is overfilled, it SHOULD just leak out the overflow hose. But so long as the pressure is gradual. If it gets a surge it will rupture the cap.

@Calum thanks

@CYBER-NINJA will when I can air box is complete and sealed up it does hesitate if I quickly rev from idle but when riding it's perfect

Hello there ! 100% item 7 from crankcase i recently rework my engine...

Cheers guys

Yeah , seems like its pressed there , cant find it anywhere so bought replacement clutch.

@castrolsniffer Nah check the oil galleries in the crank case bud. Yhr connecting rod will have oil galleries as well. It clearly hasn't gotten to the big end.

And you need to meassure the piston and cylinder for wear, you cant see if fx the cylinder is out of round. Also meassure ring-gap.

@Uber_Beluga on the tool side of things an impact driver is worth getting the type you hit with a hammer.

Mine has the 210

Thanks for the info after seeing what's inside the stock pipe today I'm not suprised they get hot they have an actual honeycomb cat in side no wonder I'm going to do away with it and get a dep I've give up worrying and just been having fun and the temp light hasn't come on I did 70 on it today with ease and I'm a big lad which was a surprise it stunk after though

@andrewj1680 yeah, I don't know the specifics, but the port timing isnt suited to the displacement, the ports need to be higher, it's a very midrange setup Only a few have bothered to try and fix it

Could be a faulty CDI. If you disconnect the cables completely does it at least go forwards and backwards. Also the cleaning cycle is different after it has run that it is when you actually ride the back power on and off. By that I mean when you turn the ignition on and off multiple times. The servo will go from closed to open to closed to open. But once it's open it will only go from open to closed to open.