Gas cap leaking gas?

N

navyman

Forum Newbie
My Lawn Boy self propelled mower is leaking gas around the gas cap. Kohler engine 6.5 hp (149 cc) Model No. 10732. Its only 2 years old and used gently around my small city lot!
I replaced the gas cap with a new one from Kohler. Still leaks! Any ideas?

Navy man.
 
Look closely at the sealing surface of the tank for damage or defects. Are you sure you're getting the cap screwed down tight? If you still have the old cap, can you take the gasket out of it and add it to the new cap?
 
cpurvis said:
Look closely at the sealing surface of the tank for damage or defects. Are you sure you're getting the cap screwed down tight? If you still have the old cap, can you take the gasket out of it and add it to the new cap?
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Thanks I'll try your suggestion!

Navyman
 
I'm not familiar with your particular mower but many limit gas fill to 2-3 inches below the cap. If that's the case with yours, I would think the gas would not reach the cap. Be careful about overfilling.
 
navyman said:
My Lawn Boy self propelled mower is leaking gas around the gas cap. Kohler engine 6.5 hp (149 cc) Model No. 10732. Its only 2 years old and used gently around my small city lot!
I replaced the gas cap with a new one from Kohler. Still leaks! Any ideas?

Navy man.
Click to expand...

Thanks for the comments, but its still leaking. I guess Ill take it in to my local shop and see if its worth repairing. Have a feeling its the plastic gas tank!

Navyman :smile:
 
navyman said:
My Lawn Boy self propelled mower is leaking gas around the gas cap. Kohler engine 6.5 hp (149 cc) Model No. 10732. Its only 2 years old and used gently around my small city lot!
I replaced the gas cap with a new one from Kohler. Still leaks! Any ideas?

Navy man.
Click to expand...
Chec the fuel tank opening, it is most likely out of round causing the o-ring to not seal at the bottom very common issue
 
Several years ago, I bought a Cub Cadet lawn tractor that had the same issue (and many others). Long story short: I had to have the dealer replace the whole gas tank assembly under the warranty. Nothing else worked as a fix.
 
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