Jumping pushrods (Batman)
There is a place in the timing chest where an errant front inlet pushrod can lodge, doing no damage, but wedging the front inlet valve off its seat, so that the bike runs quite well for 80 or 90 miles on two pots, and ticks over, before the penny drops.
This is what is called "accountant's knowledge", or "banker's wisdom". While factually true, it is of no use to the people with the problem it addresses.
If I knew where that place was, or how to ensure that a errant pushrod went there, it would not be "banker's wisdom" anymore. No great loss?
However, turning the motor over slowly, in top gear, using the back wheel (NOT the kickstart) allows one to see that the pushrods truly ARE properly located, before starting.
(My problem was that the (new) inlet valve guide had picked up for a moment on the (new) valve.)
Tom
