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In article grunloh@uiuc.edu (Daniel Grunloh) wrote: > I shut the engine off, made a change and then restarted, > let the idle stabilize, and then note the change. It took > about 10 quick restarts to get the airscrew optimized. Ok, thats what I thought Id have to do, but just wanted to confirm ;). > Default setting is 1/2 turn out but mine liked it much > better only about 1/4 turn on a cold 30 degrees F day. I dont know what idle jet is in my carb at the moment, but Im now somewhere in this neighborhood, maybe closer to one turn out. But I might try starting over by screwing all the way in and backing out to 1/2 and going from there. For some reason, I cant find the sweet spot on mine yet. Course, I havnt done much running of my trike yet, so Im not that familiar with its motor. What it did the way it was set originally was itd idle quite nicely for a bit (10 to 20 secs or so) and then drop down to about 1600 suddenly, giving you that wonderful gearbox chatter. Goosing the throttle would bring it back up and itd repeat the same behavior. At first I thought it was too rich, but it may have been off the other side, and actually too lean. I richened it up and it quit doing that, and now loads up like a rich idling engine normally does... So.... its taking me a while. Theres also the possibility the idle jet/bleed hole is partially plugged too. If I cant get it to settle down more, Ill pull the carb and give it a cleaning. > I am brave enough to reset the idle stop screw while its > running. You can feel for it, and turn it a little with > fingers. Watch out for shoelaces, seatbelts or anything > that can trip you while working so close to a moving prop. > > Scary. Heh. I did that the other day - its doable but sure puts some sweat on your brow ;). LS AC fun racer. Sent via Deja.com http://www.deja.com/ |
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