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put it in the mud
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Discussion Starter #1
ive given up with my 990 i bought a new coil, solenoid, condenser, sanded the flywheel, went through the wiring harness as much as i could and still zero spark and i just want to here that 16horse riiiip. what else could there be?
 

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Unhook the ground wire coming from the switch to the points, maybe its grounded all the time. There is literally one wire needed to run the engine and that is the little wire that goes from the mag/coil to the points, I think its a black solid core wire. Set up the coil gap using a business card or a matchbook cover. I don't remember the point gap, but .020" should make it run. Try a different spark plug.

Scott
 

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put it in the mud
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135 Posts
Discussion Starter #3
hey soloution i disconected that wire and still nothing man i wish i would have know this was going to be such a problom tractor when i bought it
 

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That there's worth fixin'
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wait a day and try again tank, you'll figure it out. Try filing the points. use a continuity tester to make sure that they are really connecting when they close.
 

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Check to make sure the points open and close. They must make contact and break the connection. The spark occurs when the break occurs. Sometimes measuring the point gap is a mistake if the plunger that opens them is worn. Have you substituted a known good condenser?
 

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put it in the mud
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135 Posts
Discussion Starter #7
thanks a lot guys readin these post pretty much keep me from selling the thing i dont want to do it i doubt i will but ive had it cross my mind im gonna adjust the points tomarrow i dont think mine touch and then open i think there always open and then just open more.
 

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put it in the mud
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Discussion Starter #8
got bored and just adjusted the points and still nothing mann i hate this :duh:
 

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I've always found that when I get to that degree of frustration with some machine, it's best to walk away for a day or so and try not to think about it.
It's amazing what your sub-conscious will figure out for you sometimes, or if nothing else you come back with a clear mind and start over.
I would hate to see you give up because it feels so good when you do finally figure it out.
 

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got bored and just adjusted the points and still nothing mann i hate this :duh:
My 990 with an engine code of 326431 0139-01, was not running this spring and I bought a new coil for mine that does not require the use of the breaker box.
There is only one wire that connects to a ground, and my old engine fired right up with it.

I am at work so I will post the part number when I get home, but maybe someone here knows the part number off of the top of their head.

I did not have to have the flywheel re-polarized, just followed the instructions included with the coil and it ran like a champ.

I hope this helps.

Doug
 

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post some pics of all these things.
Is your mag/coil brand new or used?
Do the points open and close?

Don't give up, just consider this free education.
It can be fixed.

Scott
 

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Still plays with tractors
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I'm with SOLUTION, try a new plug. Even if you already put a new one in. You can get a bad plug out of the box. Don't over think this problem. It can only be so many things.
 

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I haven't tried this with my 990 (i know others have) but i was having the same issue with my David Bradley until i spent $20 on one of the Mega Fire modules and one of those E plugs (i know i have one in the 990 that is an E10) and now I'm getting tons of visible spark on the Bradley, no fire yet except for back fires from time to time so i know your frustration. Other bad thing about the Bradley is it's a non recoil pull so I am exhausted and ticked after trying to get the thing to start for half an hour. I have tried every trick in the book and I'm so close yet so far so i decided to take a step back from that project for a bit before i decide to dump it. Don't give up, just take a break from it :trink39:
 

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15,000 +posts!
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Yeah,dont give up and sell it,much as you may be tempted too--I have given up a few times in frustration,and GIVEN a tractor away,I was so aggravated with it--then see the guy I gave it too USING it the very next day,after finding some STUPID thing I overlooked that was keeping it from running!..too add insult to injury,he SOLD it to someone for 250 bucks about a week later!..glad I got it free,or I'd really have been BS!..

I also find the more frustrated you get at something,the less likely you'll figure out the problem--and be MORE likely to take a sledge hammer to it!..best to walk away,as suggested..

One thing you may have overlooked,when you bolted the coil on,did you make sure the right side is facing the flywheel??..been there,done that!..I think the plug wire should be facing the flywheel..
 

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put it in the mud
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135 Posts
Discussion Starter #15
my points open and close but how mcuh should they open im just mkin sure they opening the full amount
 

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ROJ
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i cant give you the gap spec off hand but try using a matchbook cover to set the gap.i use a kohler (automotive style coil) to replace the stock coil if they quit on my old briggs.
 

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put it in the mud
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Discussion Starter #18
thanks so much guys beacuse today i got the beast running and shes a loud one i love it:bannana: man im gonna go rip it now haha bbl
 

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put it in the mud
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135 Posts
Discussion Starter #20
the point just needed to be adjusted properly i guess because i did it again this morning and there was spark and now it runs does anyone that had a 990 know if they run hot?
 
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