Salvaging the Walbro carbs
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400brian
- Posts: 5894
- Joined: Wed Jul 20, 2005 12:00 am
- Real Name: James T. Kirk
- Location: South Central Wisconsin
Re: Salvaging the Walbro carbs
New OEM inlet needles are not as easily found as they once were. Here is the current part number.
- Attachments
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'09 Vintage Challenge Survivor, and I wasn't late for supper!
'10, '11, '12, '13,'14,'15,'16,'17, '18, 19, 20, 21, 22 Vintage Challenge Survivor !
72 400 restored, Father bought new in '71
73 X8 restored
'74 340 green machine
'74 X8 9 time VC finisher
'78 Spitfire in progress
2 '75 340S 1 running, one on deck
'78 LF 440 future CC clone
'73 Skiroule RTX 440, 500 mi.
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Popcorn popper
- Posts: 234
- Joined: Tue Dec 29, 2020 6:21 pm
- Real Name: Steve
Re: Salvaging the Walbro carbs
Does the arm not set correctly allow fuel to flow into crankcase shut off? Or is that needle and seat. Mine was running flawlessly but lately really flooding when shut off. I ordered a needle n seat from Luke and a fuel shut off
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400brian
- Posts: 5894
- Joined: Wed Jul 20, 2005 12:00 am
- Real Name: James T. Kirk
- Location: South Central Wisconsin
Re: Salvaging the Walbro carbs
I guess I don't understand how that is possible. On all the JD sleds that used Walbros, the tank is lower than the carb, it can't flood while sitting.
The mid-mount fuel pickups in the tank had a check valve in them to prevent gas from running back to the tank.
The only issue on restarting I have experience with is vapor lock, or the fuel boiling out of the carb, either way it will restart with great difficulty.
Full choke with lots of pulling required, or a bottle of premix in the tool box so you can squirt a bit down each plug hole to get things going again.
The mid-mount fuel pickups in the tank had a check valve in them to prevent gas from running back to the tank.
The only issue on restarting I have experience with is vapor lock, or the fuel boiling out of the carb, either way it will restart with great difficulty.
Full choke with lots of pulling required, or a bottle of premix in the tool box so you can squirt a bit down each plug hole to get things going again.
'09 Vintage Challenge Survivor, and I wasn't late for supper!
'10, '11, '12, '13,'14,'15,'16,'17, '18, 19, 20, 21, 22 Vintage Challenge Survivor !
72 400 restored, Father bought new in '71
73 X8 restored
'74 340 green machine
'74 X8 9 time VC finisher
'78 Spitfire in progress
2 '75 340S 1 running, one on deck
'78 LF 440 future CC clone
'73 Skiroule RTX 440, 500 mi.