DT125R ARCHIVE

Dt Danny · Guru

RE: guidance needed of you kind fellows

Calum122 · Guru

That's not how I would run a bore in! This heat cycle idea sounds bull. I've never heard it before this website. Only for petrol remote control cars have I heard these cycles.

Personally if It were me I would run it in like running a brand new engine in.

Using low grade mineral oils. Run 1/4 throttle for the first 100 miles. 1/2 throttle for the next 200 miles.

nd for the final 200 miles 3/4 throttle avoiding prolonged use at high rpms. Then once that's done revert back to fully synthetic.

Ralzy · Guru

Everyone seems to have there own methods even if you search the net as all of you proberly know you will read different methods. Some methods are and seem conflicting

This is a method I use It`s been tryed & tested over & over and has never caused any problems whatsoever. This method can be used to a freshly rebuilt engine aswell & you don`t have to do 500miles either

1) A nice gentle warm up get the engine up to temp then let it cool down completely

2) Re-torque the head & barrel nuts

3) Do a few more heat cycles

4) You can then open her up with hitting powerbands
(JUST AS LONG AS YOU DON`T SCREAM THE TITS OFF HER STRAIGHT AWAY)
Just go through the gears but keep the load on the engine light going at speeds of 50 mph
in top gear keep the engine reving freely

stillbroke · Guru

Calum122 wrote:
stillbroke wrote:
i have the exact same here from aj suttons has these codes and was wrapped the same as yours 7344286
says made in italy can anyone help with my crank problem its so hard t get it to move any ideas ?
I already replied to your thread mate

yea but they are the right bearings 6305r1s

Dt Danny · Guru

Well heres some pictures of my head :)

And a good sassuage and bacon butty to finish off the day :D

NEV · Guru

Not wanting to piss on your fireworks Danny, and I don't know how you are funds wise, but I guarantee if you swap that 3BN head, for a 3MD one, before you put it all back together, you'll have much better performance, as the squish band on the 3bn acts as a restriction.

Dt Danny · Guru

Nev atm i just want a bike that runs and not pisses out water so im not botherd haha and im 19 so i can take my a1 and a2 soon so i can get a bigger bike so this is my last 125

Dt Danny · Guru

lololololol my mate is going on at me saying theres no such thing as a power valve and he is kicking off at me saying i was "ragging my bike" when its a 125 and you need revs above 6k to go anwhere

NEV · Guru

Fair do's, just wanted to give you a heads up on your head mate, you'll still have fun with that 3BN one mind.

Dt Danny · Guru

Yeh thanks anyways i may do that in the future when ive got a bigger bike and the dtr is sitting there

Dt Danny · Guru

so yeh its all back together holding water and running okay till this happens when one of the carb heater pipes was loose :(

scrimsmustang · DTR Mechanic

Wat is that

Dt Danny · Guru

you know the carb warmer pipes ontop of your head its the hollow bolt for them

eG x LoGiKzZ · Guru

you can take them off and fit a normal bolt into the head and remove the pipes if u need it running quickly, just make sure its the same length and thread type bolt

Dt Danny · Guru

yeh i might do ive sent my mate to the parts shop to see if he can get one

Dt Danny · Guru

*UPDATE*

Right everyone the bike has been written off....

lol jokes its fully working holding coolent and im now a very happy person so yeh thanks everyone who helped me out :D :D :D