spidr_mnky
14.06.2021 21:19:34
Replace fuel lines too, gummy rubber somewhere = gummy rubber everywhere.
See full version: Handyman WIRE Forums General Discussion Small Engine Repair Tecumseh Engines Not Starting; not getting gas
Replace fuel lines too, gummy rubber somewhere = gummy rubber everywhere.
Remove the float bowl. Catch the 1/4 cup of gas that should spill when you do. Verify fuel flow to the float bowl by opening the line from the tank for a moment. Should pee pretty good. here
By the book, the float bowl gasket should be replaced too. It must be airtight or the engine won't run well. I re-use them only when I'm SURE they'll be good.
The fuel delivery to these engines is pretty simple. Fuel flows from the tank thru a strainer (often in-tank), thru the fuel line to the carb body. It falls thru the carb body into the float bowl when the carb float falls as the engine consumes gas. Fuel is drawn by the engine from the float bowl thru small drillings in the side of the bolt that retains the bowl. Some goes thru the idle passages within the carb, while the some (under full throttle) goes straight up thru the main jet. here
Well, there's some stick-um left inside those carbs. more
Start by shutting off fuel from the tank. Use vice grips on the fuel line if no shut-off is installed. here
Checked coil. Getting 4400 ohms. I'm stumped.
No such thing as a stupid question. Used to do computer tech support; you have no idea how many times the monitor switch was off. Learned to ask the simple things. The coil is mounted with "This side out" facing me.
Check my understanding of how this ignition system works. The rotating magnets induce voltage to coil primary and secondary generates high voltage spark. No connections to coil (other than ground thru coil mount and kill wire on tab on bottom of coil) necessary. Can't get any more simple. There's no external voltage required. There's no electronic devices inside the coil. The stator under the flywheel has nothing to do with the ignition system.
Kill wire is off and spark plug is out and grounded.
I have the wiring harness disconnected during all of this and have the batt. connected just to the starter motor. Still no spark. This is a VERY simple unit; I'm frustrated! here
Is there any way to test the coil with a meter? Wondering if I got a bad coil. here
I hope someone on here can help me. I have a craftsman high wheel weed whacker, no spark. I have changed the magento (old was rusted and didn't check out with vom) good plug. It has no other electronics so what can I do now?
Thank you
mark
So the reason you changed the old mag was because it was rusted or because it provided no spark?
Depending on the model and type of motor, if it's an internal coil (under the flywheel) you may have disturbed the ignition timing and may have to retime the motor or if it's an external coil, you have to have an air gap between the magnets on the flywheel and coil. If either are out by too much, you can experience the no spark condition.
There is also another possibility that you may have a grounding wire shorted out, have you checked for that?
If you can give me more info, it would be appreciated. Plus also the model, type and serial number of the motor.
Let me know.
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