kx125 cold start problems

jdager

Member
Apr 26, 2008
77
0
Hi all,
I am new to this forum and new to dirtbikes in general and just bought my first one about a week ago, with little to no knowledge of them. I bought a 97 kx125 2-stroke. It runs good and starts on every kick when warmed up, but I am having a heck of a time getting it to start when cold. I have done some reading and have found that I am probably flooding it a fouling up the plugs as I was trying to give it gas while trying to start it. I plan to replace the plug and have one on hand but wanted to find out what the proper way was to cold start the bike was so I don't just keep wasting plugs. anything you can suggest, even if it seems basic, would probably help. can the fouled plugs be cleaned or should I just throw them away? also, any tips on general maintance and care would be greatly appreciated.
thanks so much,
Jim Dager
 

_JOE_

~SPONSOR~
May 10, 2007
4,697
3
To cold start a 2 smoker, turn on the fuel and choke, remove your hand from the thottle, kick slow once or twice, then turn it over slow till you feel resistance and let the kickstarter come back up. Then kick it hard all the way through. Repeat until it starts. You might as well pitch the old plugs. It's possible you have a rich jetting condition also if it keeps fouling plugs.
 

_JOE_

~SPONSOR~
May 10, 2007
4,697
3
Oh, and go get a factory service manual too. It will save you ALOT of hassle.
 

jdager

Member
Apr 26, 2008
77
0
hey Joe, thanks, I have a service manual coming in the mail. how often should you have to change the spark plugs in the bike, or what would cause you to have to change them, or how can you tell they need to be changed? also, does anyone know what the gap should be on them while I wait on my manual?
thanks again,
Jim
 

Bigdogdaddy69

Member
Feb 18, 2008
105
0
well if the carb is tuned correctly you should not have to touch the plug at all. I can make it the whole summer one plug. Also how you ride has an effect on the spark plug life.
 

_JOE_

~SPONSOR~
May 10, 2007
4,697
3
In a 125 if you ride too much in the lower rpm's it will load up and foul the plug. Do a search on jetting and read up. The plug may need changed if the bike quits running or is hard to start. Typical gap is around .030".
 

jdager

Member
Apr 26, 2008
77
0
thanks, may seem like a dumb question but I was wondering what the procedure was to clean and oil the air filter, want to make sure I do it right
Jim
 

IndyMX

Crash Test Dummy
~SPONSOR~
Jul 18, 2006
5,548
2
Amo, IN
I pull my filter, dunk it in a bucket of water & No Toil cleaner. Then put that filter on the shelf, and grab a clean & dry one and spray it with No Toil Oil. Squeeze the filter to get the oil distributed throughout the filter, and reinstall.
 

MXSparx

Mr. Meltsomeglass
Jul 25, 1999
3,723
71
NoVa
Of course if you don't use No-Toil that won't work
 

IndyMX

Crash Test Dummy
~SPONSOR~
Jul 18, 2006
5,548
2
Amo, IN
MXSparx said:
Of course if you don't use No-Toil that won't work

True, I was just offering my procedure.. As I sure others will come along and offer theirs too.
 

tyler_43

Member
Jun 22, 2007
126
0
I like to use those disposable nitrile gloves as I do my filter... No-Toil is great stuff but it SUCKS when it gets on your hands.
 

jdager

Member
Apr 26, 2008
77
0
what is no toil, where do I get it and are there any other products or procedures to try?
thanks for your help
Jim
 
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