Re: lousy gas mileage
Well maybe if this was the first time you filled up with this new small tank, maybe a good portion went to filling a fuel filter and your float bowl. I'd also double check your volume of the lawn mower tank. My lawn mower tank is really small, like 1 pint which probally would only get me 15 miles down the road. If you were sucking fuel like you said then your plug would be black charred and you might see a lot of black smoke. Any fuel wetness under you carb? A leaky tickle button can let fuel leak out which if you drove to the store, parked for awhile without tuning the petcock off it could drain out.