Post
by WillyR » Thu Aug 14, 2025 12:37 pm
Some experimentation yesterday.....
I had some past instances, when going up a long incline, 35 mph+ (high band) where I get some sputtering part way up.... the sputtering goes away and I finish that incline and may even experience another incline with no sputtering...
This seems to only happen at around 3 gallons left in the tank.. so I haven't let the tank go below 3 gallons in the last couple thousand miles.
Yesterday I was at 3 gallons before I left for work, and ran an errand at lunch... normally I would have filled the tank once I left work, but decided not to.
on a major short incline I got some sputtering and discovered if I lowered the throttle substantially could avoid the sputtering.
two more inclines to go
next incline was as major as the first, and longer...
got more sputtering and was able to pull off to allow the carb bowl to refill and finished that one just fine
last incline is as short as he first one , but not as severe, had to pull off to let the float bowl fill again and easy on the throttle still..
stumbled into the very short incline of my driveway and accordion to my dipstick I'm a touch over 1 gallon left in the tank.
so it seems to me it's more the lack of fuel pressure due to the low volume of gas left in the tank than anything else...
so now I know the limits of my fuel system.
I will continue to fill up at about 3 gallons.
none of these inclines are ruckstell worthy, and with enough gas volume can be traversed in high band, and I didn't need to drive in reverse to get home.
it's downhill to refill at the nearest gas station...
Sent from the panic room, via two tin cans attached with a string, and a jail broken Marconi, while wearing a Tin Foil hat.