Yamaha 225DX/200E engine oil leak question..

[dougspcs]

I am new to the Yamaha's, this is my second purchase and I am unfamiliar with there issues.

So this is the second time I have seen a significant oil leak from the rear output seal on the back of the transmission, down the driveshaft tube and overfilled the differential with engine oil.

Is this a common issue with the Yamahas? My brothers 250 Bear tracker has it slightly, now the 200E I just got had about 1/3 litre of oil in the differential. If poured out the fill plug when I removed it..

How many others have seen this? What seal kit is needed to fix it?

[1984 honda 200s]

The drive shaft is in 2 peices, the shaft comming from the engine then to the rear end with a coupleing gear. Its the seal leaking from the first part of the drive shaft where it is bolted on.
I had one appart a few months ago, i put a 225dx engine in a ytm200e, i had to change the out put shaft on it, i had to install the 200e output onto the 225dx and thats when i noticed the big seal in there.

[dougspcs]

Is the seal replaceable as a kit??