2000 Speed Triple 955i
There is a clatter/rattle when the bike is cranking. I can definitely hear it on the startup.
Didn't do a good job capturing it, but there was a clack at startup like @RampantParanoia caught, and at shutdown. This was the 2nd start after it popped up and I was hoping it would magically go away. The sound got clearer on the 5th start. Upon disassembly looks like when the starter pinion engaged with the idler at the point of the two missing teeth it spun forward and hit the next teeth - clack! Don't know why the sound surfaces at shutdown, which is why I worry about the sprag clutch even though it looks perfect and works on the bench.I have to ask tho, is there something wrong on the video in the first post of this thread?
It sounds completly fine to me and I have a feeling that my bike sounds the same...What am I missing?
Had the same theory about reverse engine motion at the end of the shutdown cycle. The sound did appear to happen every shutdown, but I only started it 5 times after I first heard the sound.Does the noise happen every shutdown or just sometimes?
If only sometimes, it might be of the last cylinder on the compression stroke turns the engine backwards slightly, engaging the sprag and turning the idlers. If the starter and idler are in the right place for the damaged teeth to mesh then that could make the clack? Or it might be the sprag clacking in that instance from being engaged "backwards".
Nope. Use engine oil only on sprag internals. The anti-seize properties of assembly lube are given by small particles of molybdenum disulphide (and graphite in the one you have). The sprag grips by friction, i.e. seizing, so there is a risk the moly and graphite would stop it from locking up properly when you try to start the bike.Using engine assembly lube on sprag clutch internals...
I have no idea about how copper grease would affect the sealing of the gasket but you should avoid using it on an aluminium engine either way as it accelerates corrosion. By all means oil them with engine oil, hopefully it helps. I've always figured tearing paper gaskets is the cost of doing business with engine work.Engine gasket covers to get a thin coat of oil or copper grease to try and keep them from tearing the next time
Nope, they rotate relative to each other normally when the sprag isn't engaged.Does the sprag clutch gear have a keyed or directional orientation to the sprag where it installs over the needle bearing?
Understand on the internals. Want the needle bearing to be protected and well lubricated before the oil journals start flowing. Since the sprag locks up by physically expanding the "8" springs in one direction, does it matter whether the lubricant is supper slippery Motul synthetic or assembly grease?The sprag grips by friction, i.e. seizing, so there is a risk the moly and graphite would stop it from locking up properly when you try to start the bike.
Doh..😅Nope, they rotate relative to each other normally when the sprag isn't engaged.