Loss of power

[Dale Finch]

Ok I think it leaked last year when I filled it up

At least you now know it has had a good oil change and "flush"!

[john2189]

Ok I think it leaked last year when I filled it up

At least you now know it has had a good oil change and "flush"!

Yes and a big mess on my floor.

[outdoors4evr]

What changes over the winter?
Mouse nests in the various holes (check the intake)
Ethanol turns to goo
Carb dries out and leaves deposits behind
Water condensation in the oil & fuel

[Waif]

Those are some lean fuel looking plugs.
Your gravity feed could be poor , starving fuel by a cause somewhere? Any rubber fuel line kinked or compressed or collapsing from vacuum? Filter working right?
Main jet in carb been cleaned? Choke function been studied for proper operation?

I don't like changing things without a reason , but I'd be eyeing the carbs function and adjustments as if it was a new carb install. After confirming fuel is passing through carb as it should.

[john2189]

Those are some lean fuel looking plugs.
Your gravity feed could be poor , starving fuel by a cause somewhere? Any rubber fuel line kinked or compressed or collapsing from vacuum? Filter working right?
Main jet in carb been cleaned? Choke function been studied for proper operation?

I don't like changing things without a reason , but I'd be eyeing the carbs function and adjustments as if it was a new carb install. After confirming fuel is passing through carb as it should.

A copper tube from tank to carb. Full flow. Will remove bowl from carb and check for dirt

[Waif]

Those are some lean fuel looking plugs.
Your gravity feed could be poor , starving fuel by a cause somewhere? Any rubber fuel line kinked or compressed or collapsing from vacuum? Filter working right?
Main jet in carb been cleaned? Choke function been studied for proper operation?

I don't like changing things without a reason , but I'd be eyeing the carbs function and adjustments as if it was a new carb install. After confirming fuel is passing through carb as it should.

A copper tube from tank to carb. Full flow. Will remove bowl from carb and check for dirt

Double check for heat clearance of line if it has been changed from stock. A heatsink can be added but routing away from high heat is better.
Rare , but a heated small diameter line can act a little like a gas lamp/lantern generator. A steaming tea kettle exhaust of steam ,vs fluid.
I doubt copper vs steel heats that much faster/efficiently , but bet it can under the right conditions.

I've found a rind of ice in a main jet. And another time a rind of varnish. Clear as the ice but in warm weather. Hard to see till I ran the thin copper wire strand in it. Both reduced orifice size and restricted fuel.
Another time I didn't squint to see without cheaters/reading glasses , but wired the orifice and blew through it and it was fine after.
Had an occasional "putt" today on the 53. Tractor was working good enough and I didn't mess with it.
But eventually...The main jet will get inspected again. It has not been checked since it sat most of the winter.

[john2189]

The copper tube is the one on it when I bought it in 2005. Other than a new battery,This is the first trouble I’ve had with it