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Old 04-04-2005, 08:14 PM
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Question 99' KX125 ""sneezing""/""Hic-up"" noise...

     

When i tried to get my 99 kx125 going the other day after i fouled a spark plug it wouldnt start... I called my friend over to see what was the matter with it. (hes good with 2-strokes and engine stuff)... he said i probably pushed it to hard and burned up my piston rings... i dont know though... but whenever i try and start it up: #1 it has no compression, (i can push the kick down with 1 finger); #2 after like 3 or 4 kicks with the choke on it hicups, or almost like a sneeze; and #3 it backfires....... I need someone to explain to me the backfiring and "sneezing" noise.. My dad and friends have tried to explain it to me but they all tell me different things... I just need a GOOD explination, and help with this...
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Old 04-04-2005, 08:34 PM
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Default Re: 99' KX125 ""sneezing""/""Hic-up"" noise...

Trust you father! It has never steared me in the wrong direction!

-Pintlar-
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Old 04-04-2005, 08:39 PM
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Default Re: 99' KX125 ""sneezing""/""Hic-up"" noise...

IF you have no compression id say you need a top end. As for the other noises you would be surprised at what could cause that but i think you will fix most of that by getting the top end fixed. I have found many reasons that a bike hicups or backfires you may have a problem with your timing or firing system since it fouled the spark plug and if the timing is off that will cause a backfire. You should probably check the piston first if it is that easy to turn over. Good luck
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Old 04-04-2005, 09:38 PM
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Default Re: 99' KX125 ""sneezing""/""Hic-up"" noise...

Theres no way of knowing until you tear it down. Take it apart and check the damage.
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Old 04-14-2005, 05:39 PM
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Default Re: 99' KX125 ""sneezing""/""Hic-up"" noise...

My lil 80 expert did the same thing. I actually broke a boyseen dual stage reed. So i bought new ones and a new vertex ring and wala she fired up in one kick. Check your reeds.
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Old 04-14-2005, 07:03 PM
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Default Re: 99' KX125 ""sneezing""/""Hic-up"" noise...

my little yamaha currently dose they same thing, what im going to do is replace the rings and if that dosent help ill end up rebuilding the hole top end.
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Old 04-14-2005, 07:39 PM
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Default Re: 99' KX125 ""sneezing""/""Hic-up"" noise...

top end..
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