Quote:
Originally Posted by mikeinva
I cant see how the cams would lean it out that leanMy guess would be a 140 to 150 main going by that chart.
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The cam lobes are ground down on the lower side and extra metal added to the top, tip for a bit longer duration. During this part the motor is asking for more mix but the carbs are out of fuel so the only thing left during the intake stroke is air...thereby making it lean and starving for fuel. She's parked and won't run til after the jets arrive and I'll be sticking by what Chad at Sudco recommended, since he is the guru of the CR-S carbs and start with 135's[but ordered 140 and 145's], a 65 pilot since idling is a problem and a 5180 needle which is the next size from my 5181. This is all by the book and recommendations to start with and work my way up progressively till I reach the desired A/F.
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