(14-05-21, 08:24 AM)Falcon 269 link Wrote: Cam chain won't be worn at 46k. I know of Gen 1s with 146k on the motor and still no cam chain wear.
I don't see mention of you changing the O-rings on the float valve needle seats. That would be my first port of call for any low-speed rough-running issues, along with the pilot jets and their passageways.
I have only found one person who has said their cam chain was worn, hence wanting to find the valve opening & closing angles so that I can check mine to see if the timing is right. If I could use the endless chain, for £24, I’d put one in to make sure, but, at £80 for a split chain, I’d want to be more certain.
I have changed the “o” rings even though there was no sign of flooding. The carbs were my first port of call to clean jets etc. I’ve now stripped and cleaned them 3 times. I think I’ve got the passageways checked, but had hoped to find a fuel & air flow diagram for them so I could be sure I’ve got them all clear where they need to be.