Posted by CNKS on October 20, 2008 at 17:34:16 from (216.144.104.128):
In Reply to: Re: Fouled plugs posted by Andy Motteberg on October 20, 2008 at 11:44:10:
The main jets on the Super H-up carbs are not adjusted as you describe, if they have been maintained in original condition. Max power setting is 5 turns out. It can be turned in one or one and one-half turns for better fuel economy as long as it does ok under load. If you adjust it like the non-super series, it will stumble under load, or even going up a slight hill with no load. At 5 turns out the needle is not in the seat. That jet is what I would call a "fixed" jet than will operate with the needle partially inserted. I imagine some of those carbs have mistakenly had the non-Super series jets installed, so the adjustments can be tried both ways--whatever works. My Super H carb is 5 turns out. I don't use it much, but it is a gas hog.
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