Snapper i433 no spark - Snowblower Forum : Snow Blower Forums
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post #1 of 27 Old 03-01-2019, 07:21 AM Thread Starter
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Snapper i433 no spark

So a guy brought to me an old snapper i433. All the base bolts on it had shaken loose and there is no spark.

I took off the flywheel cover and flywheel. Flywheel key isnt sheared and I disconnected all grounding. Things are covered in surface rust but not awful. I cleaned everything up as best I could, reinstalled and still no spark.

Is there a good way to test the coil or the flywheel?

(Next to john deere)

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post #2 of 27 Old 03-01-2019, 12:21 PM
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I moved your post to Maintenance since it's a general question about the engine and you might get more responses here.

Can you post the numbers off the engine please ??
When you mentioned cleaning everything up as best you could did you lightly sand the surface of the flywheel magnet and the face of the coil ??

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post #3 of 27 Old 03-01-2019, 12:34 PM
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That is most likely a points engine, so what you must do is strip off the flywheel cover, remove flywheel, take off the points cover, take a strip of emory cloth and fold it double so both sides have grit, and polish the points......reassemble and try it.....if no spark, repeat.
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post #4 of 27 Old 03-01-2019, 01:03 PM Thread Starter
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Originally Posted by Kiss4aFrog View Post




to SBF gusbuscycle

I moved your post to Maintenance since it's a general question about the engine and you might get more responses here.



Can you post the numbers off the engine please ??

When you mentioned cleaning everything up as best you could did you lightly sand the surface of the flywheel magnet and the face of the coil ??



.
I did yes.

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post #5 of 27 Old 03-01-2019, 01:07 PM Thread Starter
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Originally Posted by cranman View Post
That is most likely a points engine, so what you must do is strip off the flywheel cover, remove flywheel, take off the points cover, take a strip of emory cloth and fold it double so both sides have grit, and polish the points......reassemble and try it.....if no spark, repeat.
That's the strange thing...it doesnt appear to have points.

The magnets are on the outside of the wheel which is new to me, and the coil sits above the flywheel. The style of the coil is pictured. Not exact but darn close. It looks like you can adjust the coil closet and farther from the top of the flywheel.

https://goo.gl/images/brVkFx

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post #6 of 27 Old 03-01-2019, 01:19 PM
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Well then it is an electronic engine...my bad. If you disconnected the ground wire from the coil and no spark, then I would guess the coil is bad. I know there is a way to test them with an ohm meter, but I have never done one. I can't think of anything else unless the flywheel lost magnetism....and you can check that easily.
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post #7 of 27 Old 03-01-2019, 01:29 PM Thread Starter
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Originally Posted by cranman View Post
Well then it is an electronic engine...my bad. If you disconnected the ground wire from the coil and no spark, then I would guess the coil is bad. I know there is a way to test them with an ohm meter, but I have never done one. I can't think of anything else unless the flywheel lost magnetism....and you can check that easily.
Anyone know where I can get a parts number list to attempt to find a replacement

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post #8 of 27 Old 03-01-2019, 02:16 PM
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Look on your engine housing and get the Model # and Serial # for the engine . you can also get the model # and serial # for the blower on the chassis tag or stamp. But the engine #s a more important for engine related components.
If you post those #s then we will know exactly what you have , the size and what is or is not on your particular engine, including if it has points or not , type of coil, etc, and as well determine what part #s or list to reference.
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post #9 of 27 Old 03-01-2019, 03:35 PM Thread Starter
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I will post back soon....

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post #10 of 27 Old 03-01-2019, 07:00 PM Thread Starter
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More info....

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