ORIGINAL: roltech
ORIGINAL: Stickbuilder
Sounds like the pump needs cleaning. I would clean the carb as well. take notes as to the original low and high speed needle settings. (count the turns to close) and set the needles to these positions when re-installing. You won't believe the trash that can be found there. Sounds like this may fix your problem. The .61 SF is kinda fool proof. (as long as you don't run it too lean and cook it)
Thanks for the info. I finally got it started! but still have some problem with throttle adjustment, works great from half to WOT. but will stop if I bring the throttle lower then half on TX. One thing I might add. there is a line with a plug, when the plug is inserted and engine running, the motor runs for about one to three min. than dies, I also noted that the carb fuel feed line before it dies bubbles are present. Funny thing though if I take out this plug from the line the motor runs till it's out of gas and no bubbles, but will not run lower than half speed, I think that the high speed needle valve is OK by the muffler residue seem to be OK med to light oil spray out of the muffler. I did the nose up WOT runs great, now looking to solve the lower speed to idle, I was thinking, is the reason that leaving the plug on that line that goes to the fuel thank. that a vacuum is created and the pump can no longer suck the fuel out? starving the carb?
Well if you have any additional information It will greatly appreciated.
Thank You
roltech
Here is some pictures of the culprit OS .61 2S SF Max You can see the line with the plug going to the tank. and the carb type.