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Old 07-17-2009, 06:58 PM
ciref8 ciref8 is offline
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Default engine won't start

should i clean the carb? how do you do this.
i think that the carb might be the problem since i opened up the head and everything moves. i also got a new spark plug and verified that there is a spark.
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Old 07-17-2009, 07:56 PM
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i cant open it past here...
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Old 07-17-2009, 07:59 PM
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Main jet has to be removed first. Won't be easy.
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Old 07-18-2009, 05:41 PM
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ok i cleaned the carb and it seemed to help but it still won't start. After about 5 pulls i would get like only 1 combustion. Does anyone know what else i can try? Choke throttle combination?

-thanks
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Old 07-18-2009, 06:58 PM
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try turning the idle up a little..could be shut all the way off on accident. pull out the spark plug and spray a little thrust (starting fluid) in there.

can you post some more pictures of the engine
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Old 07-19-2009, 11:15 AM
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Quote:
Originally Posted by vandancouver View Post
try turning the idle up a little..could be shut all the way off on accident. pull out the spark plug and spray a little thrust (starting fluid) in there.

can you post some more pictures of the engine
hmm, yesterday there was a spark but today i dont see one. also yesterday i could get an occasional popping sound but today, nothing here is a video of the engine:
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Old 07-19-2009, 11:21 AM
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So you bought that engine without even seeing it run...? Hows the compression? are you getting fuel? You say theres no spark? did you check the kill wire, if its grounding out that could be your problem.

Also you best be gettin an exhaust/header for that thing before you run it much.
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Old 07-19-2009, 11:27 AM
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Did you try starting fluid? Clean the coil? Replace the sparkplug? Blow out the carb? Put oil in it?

Pretty sure it has compression, as when he pulls it, it comes off the ground some.

...Can you smell gas out the exhaust? Also, like Kap'n said, get a header or a muffler for that bad boy.
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Old 07-19-2009, 12:30 PM
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Quote:
Originally Posted by EagleTalons View Post
Did you try starting fluid? Clean the coil? Replace the sparkplug? Blow out the carb? Put oil in it?

Pretty sure it has compression, as when he pulls it, it comes off the ground some.

...Can you smell gas out the exhaust? Also, like Kap'n said, get a header or a muffler for that bad boy.
i replaced the sparkplug and it was sparking the other day. cleaned out the carb but did not look at the oil. i do smell gas.

i think the main problem might be the spark b/c i tried starting fluid with no success. the day that it did spark though the engine would occasionally making a popping sound as if it was gonna run after several pull.

about cleaning the coils, what do you mean by this. sorry i am not very good with engines.
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Old 07-19-2009, 12:50 PM
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Cleaning coil not necessary except for aesthetics.
Check gap between magneto and flywheel magnets. Should be .010".
If laminations are touching flywheel, or to wide of a gap exists...that would be one possible reason for intermittent or no spark problems.
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Old 07-19-2009, 12:57 PM
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Ok, now take your flywheel cover off. Should be about 3-4 bolts. Then you will see your coil on top of the flywheel. Remove it. Then look at the "posts" on the coil. They should be shiny. If they are not shiny, use sandpaper or emery cloth to make them shiny. Then look at your magnet on the flywheel, it should also be shiny.

Now when you put the coil back on. It is necessary to gap the coil. It is gapped at .006 or around there. I use a piece of emery cloth to gap with, but feeler gauges are cheap and used in a lot of engine processes.

Now, put the shield back on and try to get a spark. If you have no spark, it is possible you have points. Here is a way to tell.

No points coil.


Notice how it has an extra post to the side. If your coil doesn't have this post, it will have points.

I hope I explained this enough.
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Old 07-19-2009, 01:01 PM
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i've had a few of these type engines not get spark because of rust on the magnet and coil's pickup. engine looks clean, i would try kill wire as previously suggested. carb in the pic is wot, would it not close? looks like you had your foot right on top of the spark plug. maybe you fractured the ceramic?
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Old 07-19-2009, 01:04 PM
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Eagle, no points im assuming, its an 89' so thats fairly new.

Definitely check the kill wire and plug before you go buying a new coil.
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Old 07-19-2009, 01:09 PM
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Oh, that silly updraft carb got me confused with something older.
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Old 07-19-2009, 08:38 PM
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update: when i take off the cover and turn the wheel by hand, while holding the spark plug, i feel a shock, but when i put the cover back on to test for a shock, i dont feel anything?(no spark) could this narrow the problem down to something?
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Old 07-19-2009, 08:46 PM
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Thats not how you check for spark... Hold the plug against the head and turn it over, you should see a nice blue spark.
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Old 07-19-2009, 09:11 PM
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sounds like the blower case is hitting the kill wire
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Old 07-19-2009, 09:29 PM
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...or is shorting the secondary.
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Old 07-19-2009, 09:40 PM
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It doesnt matter if the magnet is shiny Eagle.
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Old 07-19-2009, 11:23 PM
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Quote:
Originally Posted by jr dragster Tyler View Post
It doesnt matter if the magnet is shiny Eagle.
I like shiny things though and it helps me cope with rusty flywheels.
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