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  #1  
Old 02-20-2012, 01:21 PM
Specialized Specialized is offline
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Default 1210 / 680 won't run correctly with K301AQS

Hello All,

I've got a 680 Hydro I picked up a couple weeks ago.

The K301 seems to need some help. I've rebuilt the carb, cleaned it all out, replaced fuel lines and the filter.

The spark plug seems to be fouling itself quickly, all sooty. The motor will not respond to any throttle input, it seems as though its running out of fuel or spark. You can get it to go a little faster than idle, but not much. It almost seems like its only sparking every other time it hits TDC when you've got the throttle turned up.

Should I just be worried about replacing the plug, and hopefully all will be swell? I mean, I've cleaned it off a few times, carb cleaner, steel wool'd the snot out of it, made it all clean again, checked gap; it was smaller than .020" so I brought it out to .035" which is where I read it should be.
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Old 02-20-2012, 01:30 PM
Methos Methos is offline
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Have you checked the timing? The plug should be gapped at .035.

http://www.onlycubcadets.net/forum/s...ead.php?t=4405
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  #3  
Old 02-20-2012, 01:38 PM
Specialized Specialized is offline
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I know this may sound silly, but Matt's timing procedure is very difficult to read as I am not familiar with 'points'.

He refers to 'break', I would like a bit of clarification on this if possible.



I read as much as possible from this site, however there does not seem to be a whole lot of troubleshooting information, unless it is buried with 'unsearchable' parameters.
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  #4  
Old 02-20-2012, 01:47 PM
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cubs-n-bxrs cubs-n-bxrs is offline
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That timing procedure is not a hard process at all. The term "break" Matt is referring to is the moment when the points just start to open. Breaking away from one another.
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  #5  
Old 02-20-2012, 03:27 PM
Methos Methos is offline
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Quote:
Originally Posted by Specialized View Post
I know this may sound silly, but Matt's timing procedure is very difficult to read as I am not familiar with 'points'.

He refers to 'break', I would like a bit of clarification on this if possible.



I read as much as possible from this site, however there does not seem to be a whole lot of troubleshooting information, unless it is buried with 'unsearchable' parameters.
I've gotten to where I use a timing light that I paid $35 for and that's faster for me to set the timing.

Quote:
Originally Posted by cubs-n-bxrs View Post
That timing procedure is not a hard process at all. The term "break" Matt is referring to is the moment when the points just start to open. Breaking away from one another.
Kelly great way to break it down. Pun intended.
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Old 02-21-2012, 04:58 PM
Specialized Specialized is offline
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PS - I got a screaming deal (or so I thought) on a 44A mower deck.



$100
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  #7  
Old 02-21-2012, 11:06 PM
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darkminion_17 darkminion_17 is offline
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What does it look like under the belt cover?Most times the idler arm is siezed up.Looks good from herefor $ 100
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Old 02-22-2012, 07:40 AM
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What does it look like under the belt cover?Most times the idler arm is siezed up.Looks good from herefor $ 100
I agree with Lew. Doesn't look to bad for $100.
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Old 02-25-2012, 04:34 PM
Specialized Specialized is offline
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So Im reading this and if I understand correctly, I need to have the points gapped at .020 anywhere but when the S on the flywheel is visible through the shroud??

It just says first, gap the points at .020, then rotate the motor in the normal direction and look in at the sight hole when the points break.
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Old 02-25-2012, 05:25 PM
Methos Methos is offline
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Quote:
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Have you checked the timing? The plug should be gapped at .035.

http://www.onlycubcadets.net/forum/s...ead.php?t=4405
Quote:
Originally Posted by Specialized View Post
So Im reading this and if I understand correctly, I need to have the points gapped at .020 anywhere but when the S on the flywheel is visible through the shroud??

It just says first, gap the points at .020, then rotate the motor in the normal direction and look in at the sight hole when the points break.
No the plugs should be gapped at .035 and check out the guide via the link I posted before. Good luck!
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