right ive got another metering unit on the way (thanks again dan) hopefully thatl solve this problem. ive got another... an oil leak from the dipstick, the o ring has worn out from the bottom of the tube. do i just yank this out and put another o ring in or are there screws to undo?

willl let all know about the starting problem tomorrow.

hope this post has been helpful to people, seems like the problems ive got are quite common !!