pilot screw adjustment
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pilot screw adjustment
Hey everybody - I have an 02 SH, bone stock. I put 48 pilot jets in, replacing the stock 45s that it comes with. Put the pilot screws at 2 3/4 turns out (which is the starting position per the factory manual). Last night I attempted to adjust the pilot screws using a drop idle type procedure: basically trying to find the highest idle by adjusting each, then richening it a tad. At first, I couldn't get any noticable idle speed increase by turning the screws either way. Finally, I screwed them in until the idle fell, then backed them back out until it came up as high as it seemed it was going to. It turns out that position ended up being only about 1 7/8 turns out! The bike now seems to have a crisper throttle response, and still doesn't miss or backfire through the carb if you wack the throttle. Could the 48 pilot jets have really richened the mixture so much that the pilot screws only need to be 1 7/8 turns out? Also, I know too rich a mixture washes oil off the cylinder walls causing premature wear, and too lean a mixture causes accessive heat and holes in pistons. If it's running well, does that mean I'm within the range where it's ok, or could I still be doing damage? Yes I'm paranoid and my wife thinks I have OCD!
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