DT125R FORUM

@Julius And what type of CDI unit do you have?

@Calum
Sorry that i didnt say i meant the dtre

@Hybrid_Theory01 It won't be the gearing, it'll be the starter. It's the same as if you bump start your motorbike in reverse then it'll go in reverse.

So the kick starter mechanism probably isn't correct.

Although, I cannot visualise how this can be the case. I can't see how the gearbox can be assembled in such a way, so the only thing I can think of is the engine going around the wrong direction.

@old-boy-racer
I’ve pretty much had the same symptoms with my sons 2002 DT. Cleaned the carb put everything back to standard and worked forward from then on. I had the luxury of a dodgy oil pump to start off with then wrong main jet caused it to splutter and cut out high up in the rev range. New oil pump and standard 240 main jet sorted that. It’s very surprising how little you need change the carb if not at all by running a different exhaust. Good luck I’m sure you’ll get it sorted !

@HOTSHOT-III Thanks for the information mate.

@rking7888
Same hubs ect. Just different rim manufacturers

On a stock bike it just doesent make much sense but on a modded bike it could be cool to have a non standard kickstarter to make the bike that bit more unique

@350_2stroker

PS they unscrew by turning clockwise...

@1999dt
Only real way to do it is to troll the breakers yards. Not easy in these flooweey times 😜 If you find out anything let us know...

@Calum
Yeah checked the fuse at the battery. Don’t know if there are any others?

Yes very rare now and you have to hunt high and low to find anything at sensible prices I'm afraid

Mine pops off if I look at it. The bottles not likely to be the problem. Keep an eye on your temp gauge. Catch it before it over heats. Otherwise you’re gonna score the piston and barrel, and yeah, skinny alloy heads warp for a pastime.
How many miles of good riding did you get before problems?
Also, have you checked your 2 stroke oil?
Not sure if bogging down is a partial seizure? Sure hope not...

@Blaze-Vile Sounds like it could be an electrical fault.
Check CDI, Coil, Spark Plug, HT Lead etc.

Air box isn't restricted. Air filter clean from debris etc?

I used Imageworks, good quality and service, try them

@DanRacing Nice work. :thumbs_up_light_skin_tone:

@DanRacing will send you a message mate, also wise choice with the BMW, recently picked myself up an E36 325i, 6 cylinders sound is unbeatable 😉

@calum said in Derestricting 97 DT125r:

@sloanparkes Sounds like the powervalve isn't set up to me.

Ya well I've moved it back the other way... but it doesn't reg above 65000 in 5th and still sat at 60mph ish I'm so sure it's restricted...

And ya @NINJA it was right at the bottom and my toolbar on my phone was covering it saying 97 to 99 😧 cheers dude

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