Quote:
Originally Posted by Greathouse
Hey I wanted to bring up more jetting discussion. I just changed to a 38/115 combo at 4000 feet. Starts and idles well, throttle seems crisp and it almost completely took away a little quick snap throttle bog. I'm thinking this should be on the lean side at my altitude but next size up seems too rich and I can't lean it out with the pilot screw. Anyone at around 4000 feet that can compare?
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If you have the original carb, the airmixture screw will need to be drill out (cap covering it).
Opening this (flathead screwdriver, SMALL) adds more AIR in this OEM Youall carb. I closed mine down to ~7/8 turn, but I have 42 pilot, 120 main.