Replaced the oil seal behind the srocket on TLR 250 but the new one is still weeping oil, so got another one and its still leaking! any suggestions? Is there some magical way of pushing it in.

Yes if you get a peice of tube slightly larger on the ID

and just under on the OD push the seal on the g/box

shaft and drive it in,this will keep the seal from

distorting on assembly which will lessen the risk

of it leaking.Hope this is of help to you!

Did you check that the bearing is not worn?

If the seal was changed and the bearings were worn it would still leak.

mine used to do this , it had loads of washers packing it out , got a new sprocket now tho.(and a seal of course)