@britshgigolo It could just be well worn it's service limit.

I'd take it to an engineering firm to have it examined, make sure it's within tolerance.

I've got a spare complete yz engine but in parts in a box. Do you have a picture of the gear you require? I can take a look on Saturday

I like 34:1 or 32:1 if your romping it, it's a shame the gear ratios are so short on a YZ. If you keep it fuelled on the over run, just a blip or 2, you can expect no issues, provided the engine has the correct fuelling mixture!

These engines are awesome, and can withstand abuse, just got to keep it setup correctly.

Yeah there's 2 on eBay for £20 ATM

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I've been reading today a lot about the reeds , interesting technology , pretty simple but great. Loads of videos on youtube also , man did tutorial how to get max of them.

@scotty not all dts use the same carbs is what I was saying mines a tm 28 if yours is a vm 26 then i don't see why it wouldn't fit

@Calum Aye Calum, cheers, I did bled system and issue is sorted. Water pump was airlocked, that's all. The thermostat should fully open about 78 degrees.

I'm not sure and i can't see it in the service manual

@micheal-cox I have not found that the powervalve works properly in neutral.

Best thing is to take the exhaust off and manually set it and disconnect it from the servo.

I've got a dt re 04 it starts mainly on choke it like new every thing is like new but it's just stoped tickin over what should I do

@Darty cheers mate I just want 1 that's going to last haha and best performance

@Ricky Yeah water is not going to get the oil out bud. You need something that will drag the oil out. But not petrol. Use some sort coolant flush.

Alot of our tuners up north will work with you internationally, postage might be £25 or so.

Interesting as a modification, but Jasil state no changes in mass, I'm still tempted with one but unless this 'Racing' style crank is lighter, you are better off having the Yamaha crank built with a forged rod, you would have to try really really very hard to blow the bottom end apart on a DTR.

These Yamaha cranks are solid from factory, any crank will be balanced.

Will be interesting to see a comparison.

Should see a blue haze from a two stroke, that's engine oil. Black will be transmission oil, or excessive fuel.

ok ty calum for all the helpfull infomation its a great help

That is a lot of stuff for 55 quid. Loads of spares. I would buy it for a spares.

I've never actually looked at the setup of a non pulley version.

What's on the inner side of part 20 in the diagram. Looks like it's already fitted to the end of the end cap. Does it have a diamond shape that holds onto the end of the valve itself?

From the parts diagram it doesn't look like there is a separate pin so I would guess not. If it came apart then im sure Yamaha would have listed with it's own part number. So unless your end cap or part 20 is broken then it should all be fine. Try fit it all together and then put your finger up the barrel and try and move the valve.

yes ty got it done wife pick up a clutch cable from local shop on way home from work it not a great one as as buy the same cable on ebay for £7 but still have othr one coming that i ordered so no big problem it did slide back in and the seal seems to be holding and not leaking oil so will have a spare but at least its back on the road again thanks for all the help