Quote:
Originally Posted by Colemanian
I called jd and talked to James. He said the suggested settings of 180m 40p that they recommend for the asm2 carb are way off. He said to run a 170m 38-42 p. that seems a lot smaller on the main to me. Maybe that will help with some of the issues some claim to have with the jd red needle..... Just food for thought. I'll be trying this combo this weekend, I'll let you all know what I find.
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I would not not run a 170 main. It'll be far too lean with that needle.
The confusion that arises here is that the bikes have shipped with AS2 carbs both in 36mm and 38mm. With the 36mm a 38/40 pilot and 168-172 main hits the spot. On a 38mm carb a 40/42 pilot and 175-180 main is where you want to be.
You don't have to believe me, but the list of needles and jets I have put through a 38mm AS2 is extensive. Currently I'm using an N3CW#3 with a 175 main at 350M-1000M, 25C-35C, 60%-100% humidity, and feel I'm right on the edge re the main. I have ran a 170 main with an NEDW needle in the past (which supplys a LOT more fuel towards wot than a JD needle) and wouldn't have considered going any leaner. Guess I'm just saying if you're going to slam a 170 in it as per the phone discussion just take it easy and be careful.