besty414 Posted May 17, 2012 Share Posted May 17, 2012 Hi 1st post from new member, I`m from the Grimsby area and have had a DT125R for over a year. Bike is really good apart from after a ride i have a few spots of oil on the floor. The oil appears to be coming from behind the front cog. Is this just an oil seal failure and an easy fix or is this a more serious problem. Any help or advice would be appreciated. Link to comment Share on other sites More sharing options...
blackhat250 Posted May 18, 2012 Share Posted May 18, 2012 Welcome besty, Aye there be a seal behind sprocket, don"t know the model, but you may be able to put screws into old seal and pull it out , and drift in new seal, get a manual for the model, Link to comment Share on other sites More sharing options...
Moderator Cynic Posted May 18, 2012 Moderator Share Posted May 18, 2012 Be worth checking properly, when that seal goes usually the bearing behind it will be in poor shape too due to the crud from the chain getting in, that seal is there to keep stuff out probably as much or moreso than keeping stuff in. It may even be shaft movement thats causing the leak. Link to comment Share on other sites More sharing options...
AndyDtr08 Posted May 19, 2012 Share Posted May 19, 2012 Be worth checking properly, when that seal goes usually the bearing behind it will be in poor shape too due to the crud from the chain getting in, that seal is there to keep stuff out probably as much or moreso than keeping stuff in. It may even be shaft movement thats causing the leak. Gotta love mechanical inuendos! anyway, i was told that the Rd350's were often know for this seal going, I've also seen quite a few seen quite a few DTR engines with similar so is probably your cuplrit. Link to comment Share on other sites More sharing options...
besty414 Posted May 22, 2012 Author Share Posted May 22, 2012 Thanks for the advice, think i`ll take her in for a check up Link to comment Share on other sites More sharing options...
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