theputz Posted May 17, 2016 Report Share Posted May 17, 2016 Trying to jet a buddies bike and not familiar with mikuni. Here is his set up: 421 cc cub 4mm 115 hotrods crank wiseco blaster pistons cases are ported to match cub cylinder 2.86 straight cut gears 41mm KnT carbs with pj delta force 3 reeds upp intakes 196 ex 130 transfers full drag port (stock hieghts) cool head shell ( with custom 19cc domes ) SCP small bore drags +6 degrees timming stock ignition The jetting is currently 260 main 65 pilot and a 6fj41 needle on the lowest clip. We are at 3000ft elevation. The problem we are facing is it falls on its face out of the hole. Not only will it not launch second gear you can't even launch first. No obvious signs of rich or lean. I am at a loss. Any suggestions? Quote Link to comment Share on other sites More sharing options...
theputz Posted May 18, 2016 Author Report Share Posted May 18, 2016 Ordering some smaller pilots to try. Went through and checked compression, squish answer leak down. All was within special. Quote Link to comment Share on other sites More sharing options...
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