pmanaigre88
Member
Hey everyone. Working on my new-to-me Massey 165 with the Continental G176 gas. Trying to get it running right. I just had the tank off and cleaned, along with the sediment bowl, new fuel line to carb, etc. This has the Zenith carb with adjustable main jet. I just completely rebuilt the carb, repaired a small crack in the float, set float height to what the manual stated 1 and 5/32" from face of throttle body. Took cap and rotor off and set points gap to .016, as per owners manual, which i believe is correct... the tractor runs pretty good, but my issue is it has an occasional sputter/miss under any rpm above idle, almost like it's running lean or starving for fuel. Adjusting the main jet seems to make no difference. Initial carb settings from what I understand would be main jet adjusted 1.5-2 turns out from closed. I can set the main jet out 9+ turns out from closed and it doesn't make a difference. I can't seem to enrich it enough to where I see any black smoke or the tractor runs worse. From idle I can rev it quickly to max rpm and it doesn't sputter then, it only seems to after it's been running for a while under any rpm above idle, if that makes sense. Not sure what else to try... going to put a new set of spark plugs and possibly new points and condenser, but I dont think thats the issue in my case, it seems like a fuel issue. Like I said I cant really seem toadjust the carb to where it's running over-rich and blowing black smoke. Sorry for the long post, appreciate any insight from the experts.
The attached video is a quick clip of it running down the road, should be able to hear the sputter in the video...
The attached video is a quick clip of it running down the road, should be able to hear the sputter in the video...
