Originally Posted by nic579
Loaner AFR meter is the only way to jet. Plug chops
, I am tempted to purchase this AFR guage and just keep it so its hand. I probably need the slow air screw to cure a lean spot when I drop down to 165 main but have yet to find a way to purchase one as no local shops will deal with SUDCO. I found one place online but will see what my next main jet change tells me.
Lean spot AFR 14.8 to 15.5 is at just cracked throttle and clears at 1/8+ but is worsening as the main size drops, rich on the main now 170 with AFR at 11.4 +- WOT.
Thanks for the feedback on the mirrors going with the Ken Sean.
I got the Adj air screw 2 weeks ago from Power Barn. $12.95 shipped.