424 weak spark update / advice

warren woodrow · Jan 11, 2021

I finally achieved a good blue spark and still no start. I had fuel pumping to bowl of the updraft carb but decided to CAREFULLY use some ether in the intake . Tractor will start and run a few seconds when fully choked and helped with shot of ether .This leads me to believe clogged fuel jet in carburetor . I have now removed carb and cleaned exterior . Plan now is to disassemble and use my boil it in vinegar trick followed by steel brush wire through jets . Anybody have any other suggestions/advice . I need this tractor running yesterday as the cows are about to get hungry .

old · Jan 11, 2021

If it had been me I would have pulled the air intake hose off the carb and held my hand over the air intake and try to start it. I have had more then one that would start like your saying but not keep running but after i did the hand trick they started and ran just fine. The hand trick can/will pull a clog out and let them run

n9lhm · Jan 12, 2021

It's an interesting trick, but beware. I did that once and the engine backfired, burned the skin off my palm. Ouch!!!!!

warren woodrow · Jan 12, 2021

(quoted from post at 20:56:43 01/11/21) If it had been me I would have pulled the air intake hose off the carb and held my hand over the air intake and try to start it. I have had more then one that would start like your saying but not keep running but after i did the hand trick they started and ran just fine. The hand trick can/will pull a clog out and let them run

I will remember that one . I have tried pulling the choke hard but did not work .

old · Jan 12, 2021

In all the years I have been messing with engines that has never happen to me but I do hold my hand on tight so hard for it to happen

old · Jan 12, 2021

The hand trick stops all air from going into the carb so a lot better then a choking plus it tests for good suction and also for gas getting to the carb and threw the carb. If you do not have a good suction then you have a manifold leak or low compression. If you don't gt gas on your hand that means gas is not getting threw the carb and to the engine

Duner Wi · Jan 12, 2021

I use water vinegar and Dawn dish washing soap inn a slow cooker.

wally the ollie · Jan 13, 2021

Did you check the fuel shutoff solenoid on carb. lost power to it on my 424 and would not start. has power when key on. keeps carb from draining gas when engine shut off.

warren woodrow · Jan 13, 2021

(quoted from post at 09:02:23 01/13/21) Did you check the fuel shutoff solenoid on carb. lost power to it on my 424 and would not start. has power when key on. keeps carb from draining gas when engine shut off.

Thanks for suggestion . Fortunately I eliminated that darn thing many years ago and replaced it with a mechanical adjuster .

424 weak spark update / advice

warren woodrow

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old

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n9lhm

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warren woodrow

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old

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old

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Duner Wi

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wally the ollie

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warren woodrow

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