cole_247
11-15-2021, 09:48 AM
Hey guys! I have been following this group ever since I picked up a 200X this summer. I have fortunately (unfortunately for my wife) fallen into the trap of loving these things. I just picked up a 1986 350X that is in great condition. I will try to post some pictures soon. Anyways, the 350 has been sitting for a while and the previous told me he rebuilt the carb with a true rebuild kit before I got it.
Here is the issue, when I do a cold start it smokes. It is a white smoke but it does not smell at all like oil (heavy exhaust fume smell). I do not have to use the choke to get it started. I actually really cant, if I do it will sputter and die instantly. After about 30 seconds smoke clears but still wont idle. I have to consistently nurse the throttle. Once warmed up completely i have gotten it to idle. To me it isnt a smooth idle. Jumps around some.
When I rev it high (over 1/2 throttle) and stay on the gas it will randomly sputter some and then puff out some smoke... Again it does not smell anything like burning oil (my 200 has leaky valve seals so I know what burning oil smells like). Spark plug does show black with carbon, not wet though.
Where do you think I should start? Keep backing out the air fuel screw? I have that set at about 2 turns.. Move the E-Clip on the needle up to make it more lean? Bump down my jetting? Airbox lid is already off.
Or just get a 400ex carb and not waste my time with anything else?
Thank you for the help. I am still new to ATCs and previously I have had fuel injected toys...
Here is the issue, when I do a cold start it smokes. It is a white smoke but it does not smell at all like oil (heavy exhaust fume smell). I do not have to use the choke to get it started. I actually really cant, if I do it will sputter and die instantly. After about 30 seconds smoke clears but still wont idle. I have to consistently nurse the throttle. Once warmed up completely i have gotten it to idle. To me it isnt a smooth idle. Jumps around some.
When I rev it high (over 1/2 throttle) and stay on the gas it will randomly sputter some and then puff out some smoke... Again it does not smell anything like burning oil (my 200 has leaky valve seals so I know what burning oil smells like). Spark plug does show black with carbon, not wet though.
Where do you think I should start? Keep backing out the air fuel screw? I have that set at about 2 turns.. Move the E-Clip on the needle up to make it more lean? Bump down my jetting? Airbox lid is already off.
Or just get a 400ex carb and not waste my time with anything else?
Thank you for the help. I am still new to ATCs and previously I have had fuel injected toys...