DT125R FORUM

@jonne123

You can put it in from the side.
Just lever out a bush, or put a screwdriver in one side and tap out the other...
You shouldn’t t need to split the cases. Just lift the engine up in the frame till you have access...

Edited for feckups 😐

@calum

Yes found that out to my dismay once - think they are 1mm narrower than the nearest commonly available bearing.

Why wont these casings go back together.....

@jonne123 im also trying to find something that matches the original silver, my stator cover needs painting

For reference I’m running about 1mm squish on my engine with programmable ignition, I was melting the tip of the standard range spark plug after a top gear hoon but I think I was a fair bit further advanced than standard on the top end, I’d maybe stick to 1.2-1.3mm, I’m sure that’s the standard figure but my Frankenstein engine with different barrel and head measured something crazy like 1.8mm as it was! So it’s worth checking..
also to note for the future, you don’t want to go any less than about 0.8mm squish on these engines as the Conrod stretch at high rpm will smack the head.

okay thanks!

@jonne123
You bolt it to the flywheel, then insert the centre bolt and tighten it. You need to of removed the centre nut first though...

Well i have used giannelli it doesnt have any e markings so i am not sure about he model.

Moral of the story from this I can see is

More horse power = power maintenance worm with pustion changes probably more regularly

Keeping the dep exhaust carbon reeds and sprocket changes seems like the best for performance with out risking blowing pistons more frequently

I did see a video on YouTube on how to make two stroked more powerful but with this there was a risk of blowing the engine maybe if you want a fast bike just get a bigger one?

I wanted a yz road legal but for daily use I can imagine these get warm and aren't really good for road bikes sure for the track for a couple hours it's all good

The dtr is a true work horse in my opinion

Just done the one on my 3SH - when you put the new one in make sure that you cover the gear lever shaft with tape so it does not damage the seal when you push it through. Budget for a new clutch cover gasket and oil as well.

BTW do not lose the clutch ball bearing!

I thing i test hose clamp before anything

Just one on the back if its a UK model

@jonne123 I wouldn't bother tbh

@jonne123 as long as you put the 750 in and didn’t leak or spill any it’s fine

@jonne123 https://www.youtube.com/watch?time_continue=248&v=FC_h27KZOxI&feature=emb_logo

@jonne123 my current 2000 dtr/ blue has red rear shock spring but my old 88 dtr black/red had a pink spring. Don't know if it's a colour code that actually means anything.

@R3L3_89

OK not what I was thinking, but very interesting. Never seen anything like that before…
It doesn’t look like any kind of method you could use for precision tuning though…

@jonne123 look a few videos up on YouTube there’s one I saw yesterday that shows the gear drum

The engine vibrates like mad!