Thanks oldwizard1.
I’ve been thinking of tackling the carb but does it seem likely that it’s the carb if it runs while fuel pump is on via Prime? I’m thinking it’s likely that the fuel pump is not on if Prime is off.
I presume if that’s the case it’s something in the Control Board, but I’m hoping there is something simple that I can fix to get fuel pump to run when Start is on without Prime.
Can you or someone else please clarify:
When Start pressed fuel pump should run
Does the Control board take over this function or should the fuel pump be on directly from the Start switch.
What does Prime do other than energize the fuel pump? Does it also activate the choke?
I’m not sure I can fix this if it’s the Circuit board.
Thanks for your help.