Air fuel mixture

Dr Rugsnstone

Member
Jul 25, 2015
37
4
8
53
Real Name
James Reese
Hi I have a Prochem Performer 405with the 1.5L and I am adjusting the air fuel mixture.
Set the timing to 10 degrees BTDC.
backed the idle adjusting screw out 2 turns
set the throttle adjusting screw to 600 RPM
turned the Idle adjusting screw until highest RPM running smoothly
set throttle adjusting screw to 650 RPM
Seems to be running fine but I am turned out 4 full turns on the idle adjusting screw. That seems to me that it is turned out far more than it should be. Will it be running rich?
Thank you in advance for any input
 

Dr Rugsnstone

Member
Jul 25, 2015
37
4
8
53
Real Name
James Reese
Does anybody have any advice on this? Machine seems to be running well at this setting but 4.5 turns out seems like it is extreme. I have the original jets so I am thinking either a worn jet or air leak. Any thoughts?