The Bullet has a
few oil leaks but not bad. Of late, the primary drive weeps and there's an odd drip from under the engine, it might be from the gearbox or the back of the clutch. If I leave the bike for twenty-four hours with a clean drip tray under, then I expect to see one or possibly two drips so not very major. But sometimes the bloody bike chooses to mark its territory with a drip from the primary cover just after a run so I have to place a precautionary drip tray as soon as I get off.
Over the last few days, there's oil appearing on the fins, seems to be the cylinder head joint. I remember somebody saying the head bolts need to be tightened after a few heat cycles, just the same as on our Yamahas. Well, 900 miles since the rebuild is more than a few heat cycles so I took the oil as a reminder that I've been remiss.
Tank off, rocker boxes off, now the six bolts are available. Was thinking at first I would have to put the engine to tdc on compression but then realised that is completely not necessary for just snugging 'em down.
View attachment 334261
Picture shows three of the studs, there's two under the exhaust rocker cover and one just below the plug. Also visible is the length of clear plastic tube bodge which has for now cured the sticky throttle cable. Putting the tank on would move the cable forward and yank the cable just a bit . . .
Anyhoo, set the torque wrench to 20 lb-ft and gently applied to all six studs - to my surprise all of them took about a quarter turn before the
click. At least that's consistent. I think the head gasket has settled down, but a 90° turn sounds to me like I'm snugging down about 10 thou?
The gaskets look oily but don't appear to be leaking. So I've put the rocker box covers back, if they leak new gaskets will be cut. Bushed the fins with Muc Off - other cleaners are available - and rinsed. Started the engine to make sure I haven't drowned the electrics, ran it for a few minutes, but mental note to check the tappets after torquing the head down so far.
We'll see if that has stopped the leak. Seems like this dirty girl like to be fiddled with every now and again.