Jamoi wrote: ↑Tue Sep 28, 2021 8:55 pm
I hope you can get to the cause of the sound. They can be hard to pin point!
Unlikely I'll think of anything that you will not have considered already, but just incase...
Did you torque to spec and use a dot of loctite on the bolts when you checked your valve clearances etc?
Do you have a key ring or any other keys attached to the key in the ignition?
Have you poked around under the seat and checked for a loose allen key or battery terminal?
I wonder if a cable is arcing?
When you can hear the noise; if you give the engine a small rev, does the noise increase in frequency with the timing of the engine?
Have you spun both wheels off the ground?
Does the noise dissappear as soon as you get into 3rd gear, even at the same road speed?
You got me thinking when you mentioned about the cam holder bolts when I did the shims, although I like to at least double check that bolts are all torqued up correctly before reassembling. I had visions of a cam holder had come loose
So I stripped the bike down to check my work. I am no further forward, but I have piece of mind that all my work is exactly as I thought it was
No faults found.
All I have on my ignition key is a leather fob, so it can't be anything to do with that, good thinking though.
No loose tools including Allen keys under the seat, or loose battery terminals, I had them off and cleaned them very recently.
I don't think it's a cable arcing, but I'll bear that in mind.
The sound does increase with a small rev in 1st or 2nd gear, although you can't hear anything at stand still with a small rev.
Both wheels spin as normal. I checked that for the mot last week.
When I use third gear, as I'm going faster by then the wind drowns the sound out. In actual fact it's only when the rev's are fairly low I hear it in 1st and 2nd gear.
All brake calipers are tight too,
Thanks Jamie for your thoughts
Chris.
causing the pistons to slap about more,
