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Rejet carbs, started for a minute, now wont start again, help!

  • Thread starter Thread starter Penguinwobbler
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Penguinwobbler

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Hi Guys,

I rejetted my carbs this weekend, main and pilot. reinstalled the carbs, bike fired up, ran, i messed with the choke a little then it died. Went to restart it and nothing. I can verify the carbs are getting fuel and installed new plugs. wondering if anyone has ever experienced anything similar, or what may cause this. Do i need to go back and pull the carbs again and go through it? Ive been trying to get it to fire for about an hour, all different choke positions, throttle etc.


Thanks,
 

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Penguinwobbler said:
Hi Guys,

I rejetted my carbs this weekend, main and pilot. reinstalled the carbs, bike fired up, ran, i messed with the choke a little then it died. Went to restart it and nothing. I can verify the carbs are getting fuel and installed new plugs. wondering if anyone has ever experienced anything similar, or what may cause this. Do i need to go back and pull the carbs again and go through it? Ive been trying to get it to fire for about an hour, all different choke positions, throttle etc.

Thanks,
Click to expand...
Pull the plugs and see what they look like.
 
brand new plugs, totally dry when you pull them after trying to start it.
 
I am going to go out on a limb here and guess that this might be on a MOTORCYCLE?

Dare we even hope that it's a SUZUKI?

Our only clue is that you are on a Suzuki GS forum, so we hope that's what you are working on.

However, we can't help you until you help us.
 
Sorry, I went out to dinner. Put one of the plugs into the spark plug wires and hold it against one of the cylinder head nuts or any reachable ground and see if you are still getting spark.
 
excuse my haste. This is reference to a 1987 GS450L. Ran decent prior to rejet, ran okay when it started after the re jet (definitely needed adjustment) but atleast it was running. Trying to think throough what would be causing my issue and coming up with a blank. Have spark to both plugs, new plugs, carb has fuel, all vents and lines are connected as they should be. Is it possible the needle needs more adjustment?
 
A needle (mis-)adjustment will not keep it from starting.

It would not be the first time that some crud in the fuel line has made it into the carb and plugged a pilot jet.

Frustrating? Yes, especially after just being in the carbs, but don't rule it out.
 
Negative, just seated them. Could that be the root cause? If so, why would it have started once then not again?
 
allojohn said:
Not sure, but it ain't gonna run without setting the pilots correctly.
Click to expand...

I will pull them off again tonight and see if that makes a difference. What other potential reasons would there be for a no fire other than, no fuel or no spark?
 
Penguinwobbler said:
I will pull them off again tonight and see if that makes a difference. What other potential reasons would there be for a no fire other than, no fuel or no spark?
Click to expand...

With the pilot jets seated no fuel can reach the pilot circuit, therefore it cannot start.
 
allojohn said:
Leave that question until fixing the pilot jet settings doesn't work (which it will).
Click to expand...


Fingers crossed! I will report back my findings when I get home. Thanks for all the troubleshooting help!
 
at least on my bike you dont have to pull the carbs to set the pilot screws. I do have to remove the gas tank and seat but that is it.
 
Boriqua said:
at least on my bike you dont have to pull the carbs to set the pilot screws. I do have to remove the gas tank and seat but that is it.
Click to expand...

The mixture screws that you are referencing differ from the actual pilot jets. The pilot jets are located on the bottom side of the carb, accessible after you remove the bowl.
 
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