4HW Smokey
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put it on watch just in case he says hes got an endoscope and comp tester at work he can bring home we are gonna test the coolant like you said and trying to find a gasket set found this one but not sure if it right yet as doesn't state models https://yambits.co.uk/tzr125r-gasket-set-full-p-2866.html
May as well just go through it all once i got seals n tht thanks for help m8
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Whatever you do, DO NOT BUY A CHEAP HEADGASKET.
In all my years of building DTR engines, the cheap head gaskets don't work. Buy Athena, buy PJME.
https://www.pjme.co.uk/acatalog/Yamaha-TZR125R-Full-Gasket-Set-Athena--3359.html#SID=297
What's the code on your cylinder and I'll link you to what you need.
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Legend was on there and somehow missed it thanks bro
i'll look at the head in the light tomo as don't think got any photos handy -
If it was nicasil plated then it'll be the 4FU barrel which will run a 3MB head gasket.
https://www.youtube.com/watch?v=P8okvTxe-Bs
Which will be like that.
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Thanks again me n the mrs been watching rebuild vids n stuff hopefully my bore is ok so dont have to faff n get it redone will triple check as we go through it all and have some funds for the bits needed
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Just wondering of you have done something similar in the past ive got that other DT engine and the bottom end looked very similar with the oil pump etc would I be able to run that in the TZR without messing with the loom or would I have to change CDI ive got a few old ones in the parts bin if that is the case was just sat thinking maybe I could chuck that engine in for time being to get her moted and then fault check the gaskets and seal on the other one? I know the gearing would be a bit different just thought ide ask before I test it out when weather n my health permits
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Frame looks same bottom end on tht looks like the dtr engine I have my 4hw has no cover over the oil pump and has some kind of make shift bracket for the oil cable. Looks like they chopped my frame and put a heavy duty swingarm on for that 4DL raised the coolant tank and put bat under the seat. Thats why I asked cause surely the 4 wires from the engine are the same or do I have to change the flywheel coil bit of forget its name now. I think i'll give it a bash as I got to remove the engine anyway if the mountings are the same and it wires up maybe I can put a DT rear sprocket on.
Food for thought ive got to get the energy to get at it first i'll look over that cdi wiring diagrams thing you shared and go from there just hope the exhaust mounts dont throw it out of whack.
I'm hands on so once got all the parts in sight i'll hopefully make sense of it all feel free to leave suggestions etc like I said before wish I had someone here to help me out going to be fun though so hopefully will give me more incentive.
