I got a spare barrel with a dt piston off flee bay for spares, I'm running a wossner at mo, but it's started with piston slap. So I was gonna try spare barrel & piston.
It had rebore & wossner piston 6months ago! & electronic ignition 2 week ago! Just spoke to John at ty trials! He said it could be pulling air in when engine gets hotter than normal
Fuel tap is new & it has an inline filter! I pull tube off carb to make sure it ran through. The only thing I've done is put a new air filter on & oiled it. Could it be engine temp as I've not had it running for this length of time stood still.
