bungy Posted May 31, 2006 Share Posted May 31, 2006 [Had bike a few months and now there is an oil leak from one of the exhaust pipes from the engine. This is dripping constantly and the oil level drops after 350 miles usage. I keep topping up , have not lost power, but is embarrassing when parked up. Any one had a similar problem? Link to comment Share on other sites More sharing options...
crispytw Posted June 1, 2006 Share Posted June 1, 2006 why dont you fix it then Link to comment Share on other sites More sharing options...
phillipw Posted June 1, 2006 Share Posted June 1, 2006 [Had bike a few months and now there is an oil leak from one of the exhaust pipes from the engine. This is dripping constantly and the oil level drops after 350 miles usage. I keep topping up , have not lost power, but is embarrassing when parked up. Any one had a similar problem? Hi fellow biker When you so oil is leaking from "one of the exhaust pipe from the engine", where exactly is it leaking from, most enginges have a small drain hole just below each exhaust outlet on the cyclinder haed, to let any fluid that gets into the spark plug recess to drain away, if it's eminating from here; than is is probable that the cam cover is not tightened down, the cam cover seal is not fitted correctly / failing and allowing oil - via the plug recess - to drain out or a cracked cam cover. If it is actually coming out of the exhaust pipe itself then the likely culprit is a failed valve stem seal. Before you panic it is possible to replace valve stam seals without removeing the cylinder head, with offening cylinder at TDC, replace plus with air line fitted with plug thread and use compressed air to stop the valve falling into the cylinder. Clean around and above where you think the leak is, start and / or ride it until you can clearly identify where the leak is. Have you or any one done any work on the motor top end, ie chack valve crearances ? Hopes this helps Good luck Link to comment Share on other sites More sharing options...
crispytw Posted June 2, 2006 Share Posted June 2, 2006 sorry bungy about my reply what i meant was why dont you take it to your local garage and ask them to fix it. crispytw Link to comment Share on other sites More sharing options...
bungy Posted June 13, 2006 Author Share Posted June 13, 2006 Hi fellow biker When you so oil is leaking from "one of the exhaust pipe from the engine", where exactly is it leaking from, most enginges have a small drain hole just below each exhaust outlet on the cyclinder haed, to let any fluid that gets into the spark plug recess to drain away, if it's eminating from here; than is is probable that the cam cover is not tightened down, the cam cover seal is not fitted correctly / failing and allowing oil - via the plug recess - to drain out or a cracked cam cover. If it is actually coming out of the exhaust pipe itself then the likely culprit is a failed valve stem seal. Before you panic it is possible to replace valve stam seals without removeing the cylinder head, with offening cylinder at TDC, replace plus with air line fitted with plug thread and use compressed air to stop the valve falling into the cylinder. Clean around and above where you think the leak is, start and / or ride it until you can clearly identify where the leak is. Have you or any one done any work on the motor top end, ie chack valve crearances ? Hopes this helps Good luck Hi, thanks for the tip, I have been unable to answer your email as I have been working away. I have cleaned up the area and it appears to be coming from one of the bolts from the exhust clamp. The spark plug is a little damp also, but if I keep the speed down to around 60-65 mph the problem does not seem to occur, I know slow down. Anyway I shall check what you suggested and get back to you. Cheers Bungy sorry bungy about my reply what i meant was why dont you take it to your local garage and ask them to fix it. crispytw Hi, I did and he contacted Yamaha, as he used to work for them, and they were as baffled as everybody else, no offence taken to your reply it was expected really, what a stupid question, I was asking for it Bungy Link to comment Share on other sites More sharing options...
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