Very helpful Sidarta, thanks. It is very interesting that the worst affected oil hole is the same in both cases.
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I will check the oil filter, and i will always remember to close the fuel tap !
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The mechanic who used to do my annual vehicle inspection, used to work for Yamaha, and before buying my first TDM I asked him about typical problems. The only thing he could tell me was that when the top end of the engine is noisy walk away from the sale !
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The pistons are not oily, but quite sooty (indicating good piston rings), the engine ran well (apart from one leaky carb rubber)...the only oil in the combustion chamber seems to be around the inlet valves, indicating worn valve stem oil seals. The cylinder head I am going to fit is in good condition, all valves are dry, but I have already ordered the valve stem seals and it is a false economy to not fit them anyway so I'll know the top end is good
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Apart from the problems above, I've found a few corroded connectors which have received a suitable treatment, no big deal. And there seems to be (or have been in the past) a small water leak around the water pump to cylinder interface....easy to fix.
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The straight through exhaust sounds glorious to me, but as Paul (who sold the bike to me ) said "They're embarrassingly loud". I think that because the police out this way are clamping down on loud boy racers I may become a target of their attention.....so I've purchased some perforated stainless tubing which should push fit inside the end pipe and turn the volume down a bit !
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I feel like I want to put it together and ride it as an ongoing project, and sell my 900 soon.
Â
I will check the oil filter, and i will always remember to close the fuel tap !
Â
The mechanic who used to do my annual vehicle inspection, used to work for Yamaha, and before buying my first TDM I asked him about typical problems. The only thing he could tell me was that when the top end of the engine is noisy walk away from the sale !
Â
Â
The pistons are not oily, but quite sooty (indicating good piston rings), the engine ran well (apart from one leaky carb rubber)...the only oil in the combustion chamber seems to be around the inlet valves, indicating worn valve stem oil seals. The cylinder head I am going to fit is in good condition, all valves are dry, but I have already ordered the valve stem seals and it is a false economy to not fit them anyway so I'll know the top end is good
Â
Apart from the problems above, I've found a few corroded connectors which have received a suitable treatment, no big deal. And there seems to be (or have been in the past) a small water leak around the water pump to cylinder interface....easy to fix.
Â
The straight through exhaust sounds glorious to me, but as Paul (who sold the bike to me ) said "They're embarrassingly loud". I think that because the police out this way are clamping down on loud boy racers I may become a target of their attention.....so I've purchased some perforated stainless tubing which should push fit inside the end pipe and turn the volume down a bit !
Â
I feel like I want to put it together and ride it as an ongoing project, and sell my 900 soon.
<p style="text-align:center;">Ohlins, PC3, fuel cut defeat, +4deg timing, 17" front wheel.

