guy53

I had time to do a little work on the motor yesterday, as you mentioned David, the crankshaft on the clutch side is different. From what I have measured, they would be interchangeable if you use the primary drive gear of the same year as the crank if you do not use the oil pump. Also the axle main 14t ( 434-17411-00 A model ) and the clutch ass'y won't be interchangeable. I don't have anything to check the weight of the crankshaft , but the A model look heavier, that maybe one of the reasons Yamaha added weight on the flywheel ( they sure overdone it ). On that subject, I always take the ring on the flywheel and use an A model flywheel on my B. Guy

I'll split one of the A base that I have, I thing it's worth it now. Guy

I split the base and I think I had reasons to fear. I only have A model parts list but I'm sure everybody will understand. On the output shaft ( on witch the chain sprocket goes ) called in the manual part 17 axle drive, the last gear, part 18, gear 2nd wheel is not free as I was expecting it, So is that shaft on a D model interchangeable with one from an A model ? I could use the complete shaft ( with all the gears ) Guy

No luck here, I have 2 friends who ride KT, but none of them have tried that ( at least they won't tell ) Guy

So all transmission, clutch and crankshaft are interchangeable. Guy

Any parts from A TY A model I could use T completely rebuild a D model ? Guy

Jon, winter is coming ! Guy

I wonder if anybody as ever put a 250 TS TY and a Mono TY motor on a scale ? I am in the process off rebuilding a TS and find the motor heavy. Guy

Space the shock with washer.

I would not be ashamed to ride one ! Guy

canada280i I found the one on Kijiji this weeckend, it's a bit more expensive then the one ( I hope it's not the same ) I was offered. I don't fell '' the love ''. Guy

What are the pros ans cons off buying a 2013 Ossa 290i Guy

Yes the water treatment does help a lot. Guy

How cold should be the water? Guy

Unfortunately Take_a_Five you might have to buy a new piston as a 40 year's old oil injection pump is very unreliable thing. Guy

It does not look like you use it as a trial bike, so rear shock should be ok if they don't bounce like rubber ball. Front fork need service.

Great event with great people. Guy

Footrest are standard, but a seat like that was not. It was avalable as an option part that you had to buy separately. The side stand is still there, nice bike Guy

It seem's that it is fitted with the ´´ long seat ´´ , are the footrest standard or also changed for the trail version ? Guy

Don't forget to check the keyway, small things are important, trust me. Guy

There is always a bright side to a story: I was smart enough to buy all the parts needed for the job since the last rebuild, connecting rod, piston kit, seals etc., so hopefully I'll have it running like new for our big annual meeting with Mick. Guy

Disaster: Just for fun I took the piston from the connecting rod, top bearing is done and yep the rod is corroded too, so crank job. I always use Shell Ultra that is suppose to be ethanol free. The transmission side is just as new, but the crankshaft side is very dirty with what look like rust mix with oil. There as been big change in temperature in the last few month especially in the period I was out of town, but I would have never believe that it could such damage. When I change the oil in the transmission I only ran it for a few minutes, probably long enough to '' spread the disease ''. Guy

Scot I never heard about replacing the coil the way you did. Please give us feed back. I normally take the lighting coil out, if I can use them as replacement, I'll be more careful in storing them. Guy

Now that my blood pressure is back to normal, I'm going to have a good look this evening, from what I can see with the cylinder off, only the part below the exhaust port is pitted. Guy

Nope, always clean it dry ( with a rag. Guy