DT125R ARCHIVE

stillbroke · Guru

water in bottom end once top end removed?

James Appleby · DTR Respected Member

difficult to say if system isnt drained then when removing the barrel it can leak into the bottom end unless you have a really bad failed head gasket but then you bike would of been difficult to start due to the water and fuel mixture

dtr jim · DTR Respected Member

It's quite possible it went in when you removed to end in the bottom front of the barrel the water runs right to the bottom of the barrel and into the case a little, any prob on starting before hand?

dtr jim · DTR Respected Member

Chech base gasket also :)

stillbroke · Guru

cant work it out but the only way it couldve got in there wouldve been the head gasket wouldnt it?

dtr jim · DTR Respected Member

Head and base gasket, any signs of leakage from head? If not check base , if you look at the base gasket ill see a hole make sure it's got a good seal round ther water get down ther

stillbroke · Guru

im not to worried now as the head and barrel have both gone off to be completely overhauled cant wait ,are you knew jim? where you from mate thanks for speedy reply

James Appleby · DTR Respected Member

good chance it spilled down on removal did you trash that new piston a bore ?

dtr jim · DTR Respected Member

Nah I've been a member for a few years just not realy comments on much, then forgot my login so haven't been on for year or so.lol I'm from Norwich , how about you?

stillbroke · Guru

i think it spilt in to there ,and it had to top end builds as pistons kept smacking the exhaust port and pv ,im from staines jim

James Appleby · DTR Respected Member

yeah thought that would be the case and oh really maybe dremell the pv down a bit stick it on a polishing wheel after good as new

stillbroke · Guru

its getting bored

the last issue i have is the fact it wont idle properly

James Appleby · DTR Respected Member

ahh ok well see how that idle issue is after its back together mights of only been a air leak

stillbroke · Guru

i hope so theres only one other thing and thats the air/fuel mixture but the screw is ****ed so i cant adjust it

spadge · DTR Respected Member

i know its an old topic but i too have just had the same problem (base gasket colossal fail) any tips and tricks of getting the water COMPLETELY out ive been using a a scooshy thing off of a spray bottle to suck it out from the base but im not too sure if i got it all :/

bike was left sitting for 2-3 weeks in this state whilst i was away on holiday piston was pretty well rusted in the barrel in chance of damage to the crank ? safe to rebuild after top end re-con?

just want some other opinions before i rebuild .....again

thanks in advance :P

Calum122 · Guru

If it were me i'd drop that engine out the frame. Fill it with petrol. Rotate the crank slowly. Then empty upside down.

The oil the fück out of it. Rotating the crank and ensuring all seals and bearings are coated in oil.

spadge · DTR Respected Member

yea that was my other theory but was hoping there was something just as effective without dropping the engine out :(

ty tho man

Calum122 · Guru

I know it sounds like a lot of work but it isn't. Drop the swing srm. Like 3 bolts. And anothrr few engine mounts and your good to go.

MDK · DTR Legend

remember changing the wheels on a bmx or mtb ? flip the thing upside down may take two of ya then lift the back end up and prop it on a box or crate till its at the right upside down angle should do the trick . having a compressor to hand is great blow out any droplets .