Hey mechanics!
Everybody can slap me now, on 3...I figured out the problem. Simple, but elusive. The fuel tank was half full (or half empty depending on your outlook..) Filled tank<and it runs great! Must have cracked pickup line or valve switch problem. So it was running out of fuel, which would mimic a jet issue on acceleration.I always make things more complex than they are. Wlill be removing/replacing switch next week. Customer was so happy, he took it out and broke a front CV axle for me to fix! I guess it has enough torque for the vampires...Lots of mud here in East Texas (and people who use throttle at wrong time). Leads me to next question: When adding a snorkel, about 3 ft., one should increase diameter to compensate for flow resistance, is rejetting a trial and error process, or is there some rule-of-thumb formula? I snorkeled my son's Helix-fox 150cc go-cart, and the motor was unhappy/bogged down on acceleration..(the fuel delivery system was in order.. lol) used a tube that was 40% larger than carb throat, no angles. is that a jet issue or not.... thank you all again for you interest in my issue, I am starting a small shop here in conroe,TX, mostly brake/drivetrain/maintenance stuff, but pllan to venture towards engine/custom work if successful. I am a respiratory therapist by trade, and employed fulltime a a regional hospital. Been building my own engine/trannys for many years for hot rods, but see a market for ATV work. want to learn coveted porting secrets, and am building flow bench now. Due to my profession of 25+years, I know my physics of flow mechanics. Any of you guys do port work, or wish to do so???
Mike Jordan aka Badfinger22