DT125R FORUM

Been working on it all day and we have since found it wasn’t the water pump still trying to figure it out haha

Update.

so i have a reason to believe that its my water pump that has failed, does anyone know how to test the water pump before removing it ?

Hi again, so after trying a new cap it hasn’t seamed to fix it but I am 95% sure I found the source of the leak (see image ) is this hole ment to be used as an overflow and does anyone have a full Coolant system diagram

I’ve tried another cap ( an old one that came with the bike as the bike came with 2 boxes of parts) and it seams to be worse so I think that shows both caps are bad and the og one wasn’t as bad

Thank you very much

Thank you very much, that’s me swapped over the cap for a spare one I had and I’ll get back to you after my ride today

P.S. the head gasket is all on the right way as I could just see the “up”

I will check over flow but I got an Athena head gasket for the bike and had the head skimmed too

And what do you mean right way round for the head gasket is there a top and bottom? We got it facing the right direction but if there’s a top and bottom I’m not sure

P.s. the coolant doesn’t look contaminated at all

Hi all, I recently rebuilt my top end so had to replace coolant

After doing so it seams to me that the bike will leak coolant from the kickstand when I park it up and will begin to over heat when riding it afterwards.

Sorry if this is a dumb mistake but I can’t seem to pin point it thanks all

I was stripping down the top end when I found a gold coating on the inside definitely interesting

Does anyone have any ideas ( the bike ran fine until the top end went )

Turns out my top piston ring went for a walk, full top end Rebuild in progress

My mate has one ill borrow it this week/weekend

As I said earlier I cannot check my compression at the moment but it does feel like I have some

When I checked my radiator I found my finger was dirty and the cap had a milky residue

I've heard before the milky residue could be a sign of a head gasket failure

To be honest I have no clue about the age of the Engine as I bought it last August and it came with like 3 top ends and a bottom

I'm getting a compression tester from a friend sometime this week.

What kind of residue would I find in the cap ?

Hi all, I have a 99'DTR and after leaving a bike meet the bike felt slightly sluggish, this got worse as the trip went on and when I pulled over to check it cut out when I pulled in the clutch. The bike no longer starts and I have no clue what it is I have cleaned the carb (not incredibly thoroughly and have cleaned and have spark. (Yes I do have fresh fuel)

Sometimes when I try to bump it will bang if that helps at all

(Sorry if this is in the wrong page )

Hi, all I was just wondering if this seams off ?
I'm reinstalling my exhaust as I had a leak from my exhaust gasket and I cannot seam to get the exhaust to go on in another way apart from this and I think its too close to the frame

@Calum i have no clue haha the last owner didn't have much of a clue so i doubt that helps, but thanks for the help !

@Calum I would rebuild it, In fact that's what I tried to do at the start but it didn't work and turns out that my caliper was corroded and beyond repair

Hi all I've been having trouble with my bike recently and turns out I need a new front caliper. After ordering one off eBay it turns out the seller sent a back caliper. I would appreciate any help I could get as I desperately want the bike ready for the road by the 18th as it's my 17th and I will be all ready to go

@Calum I think it was a false alarm, I went out to the garage today and it's cleared up

Hi all I was working on my bike today when I noticed a haze in the tach (see image below) does anyone have an idea what it could be

It may if been brake fluid as I've been working on my front brake but I don't think anything has touched

Hi everyone, I just had a quick question.

I bought my DTR last year and my fuel cap key isn't the same as my ignition key, is there anywhere I could get a fuel cap cut to the same key as my ignition (or vice versa)

Thanks in advance for any help this form has been amazing