Maintenance & Technical > KX500 Original
Harder starting all of a sudden, looking for input
reklessj:
--- Quote from: Foxx4Beaver on February 09, 2015, 10:46:46 PM ---
--- Quote from: jcm3 on February 09, 2015, 04:24:00 PM ---Took the carb off (love these old two strokes, that would have been a BEAR on my 2011 YZ450 that I used to have) and removed the reed cage, all looks well. It started better today, but still seemed like I needed to crack the throttle just a tad when I didn't used to have to do that before.
It may be that the floats are off, I'll have to do some adjustments on it and see if it helps. It seems to run great. Thanks for the tip.
--- End quote ---
if you say it's running great and starting ok, and providing it's not suckin air some where....I wouldn't worry too much about having to crack the throttle a touch when starting it.
I have to do the same thing with mine when it's cold...and honestly, I prefer it that way. Before I put my new carb on, it would start without having to touch the throttle...and, sometimes if it hadn't been started for a couple weeks, it would idle fairly high the second it lit off, then I'd be scrambling to get to the choke to "feather" it for a few seconds until it settled down...but if it had been running the day before, it would just start and idle normally...a different slide or slight jetting change may have cured this, but I wasn't concerned with it.
Not that you're experiencing any of these issues, but having to crack the throttle can give you some control over how it idles on it's first few seconds of running...because one of the worst things for a cold motor, is to have it rev to the moon :-o
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+1 on the cold engine thing, I hate when Ido some of the local kids top ends break em in for em the whole 9 yards. Then go over to there house with my boy on a 40° morning watch em fire it up and pin it across the yard. Makes me cringe eevery time!! I have the same motor as jcm3 and never had set to idle always had to crack it.
Brute:
Mine does this as well but it made me wonder if it is not old crankshaft seals leaking a touch until they warm up a little as I can get the choke completely off and the idle screw does nothing until it warms up just a bit. :-P
Foxx4Beaver:
--- Quote from: Brute on February 10, 2015, 03:54:14 AM ---made me wonder if it is not old crankshaft seals leaking a touch until they warm up
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that sounds like a great recipe for....
https://www.youtube.com/watch?v=fk1jLoJP6vs :-D
jethrobolas:
Just a noob on this forum, but have you tried changing the spark plug? If you flooded it bad, might have fouled the plug.
jcm3:
--- Quote from: jethrobolas on February 10, 2015, 05:47:17 AM ---Just a noob on this forum, but have you tried changing the spark plug? If you flooded it bad, might have fouled the plug.
--- End quote ---
Yep, sure did. Thanks for the input.
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