MF-65 GAS starts hard with gas cap on

Rkh

Member
MF-65 GAS starts hard cold-take gas cap off & runs. used air compressor to clean gas cap vent-didnt help, but starts when cap off. any ideas why?
 
Aboutthe only thing that could be wrong is the vent is still clogged up. You may need a new cap if the vent is in the cap or you need to run A wire or other such think to clean the vent out
 
I didn't have your problem, but leaving the gas cap on the rear tire and taking off sure cured any problems my old cap had... Sounds like something is plugging it up. I bought mine here.

Aaron
 
I don't think the cap vent has anything to do with starting. If the cap vent was plugged it would be noticed after a few miutes of running as gas leaves the tank it will build up a vacuum tht could cause the tractor to act like it is ruuning out of fuel.
I would suspect that your carburator needs service.
 
If he had said it would start then die I would tend to agree but he says it will not start if the cap is on but will with it off so has to be a vent problem or some odd sort
 

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