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Old 06-25-2009, 09:35 PM   #1
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I was taking my carb off just a minute ago, and decided to second guess myself and post it here. My bike sometimes (when cornering or hitting bumpy ruts) will just shut down. I have to take both seats off the side panel and hit the carb with the high quality screw driver they provide. After a couple knocks the bike runs good. Sometimes for weeks sometimes for minutes. Now it's happen ALL the time. So i guess it's time to do something about it. Do you think my assessment of the float sticking is a good one? Am I off base here? I was going to take the carb out and take off the bowl and clean it out. What do you think?

Glenn
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Old 06-25-2009, 09:37 PM   #2
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What do you mean after a few knocks it's fine? You mean knocking on the carb? If so, then I'd start by looking at the float for sure.
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Old 06-25-2009, 09:44 PM   #3
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Sounds like a sticking float for sure. HAd the same issue with a honda last year that has more years than miles on it.
My friend walked 5 miles back to camp when it quit. He was pissed when I gave the carb a whack and it fired right up.

It's probably caused by varnish or dirt in the fuel bowl. Take the carb apart and give it a good cleaning, then carefully set the float level.
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Old 06-25-2009, 10:20 PM   #4
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<div class='quotetop'>QUOTE (Twissty @ Jun 25 2009, 09:44 PM) <{POST_SNAPBACK}></div>
 Quote:
Take the carb apart and give it a good cleaning, then carefully set the float level.[/b]
Damn, stop talking to me like I know what I'm doing !! lol, Now I have to go google that, I was just going to do a half ass job, now I guess I have to go do it right.


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Old 06-25-2009, 10:40 PM   #5
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check out jetting 101 in pinned by wyo, it's better than anything your gonna google.
http://arcticchat.com/forums/index.php?showtopic=74280
there on the 4th try the link works, except you gotta log in again. to me an AC carb is simpler than that was.
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Old 06-26-2009, 09:11 AM   #6
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Well I plan on doing this cleaning of the carb tonight, I have one more issue maybe I can look at while it is off.

Sometimes my bike won't idle, it will stall out. I adjust the idle screw than it will idle to damn high. Turn it down slightly and it will stall out a gain. It's like I can't find the sweet spot. any idea about that?
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Old 06-26-2009, 09:29 AM   #7
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<div class='quotetop'>QUOTE (HopsNBarley @ Jun 26 2009, 09:11 AM) <{POST_SNAPBACK}></div>
 Quote:
Well I plan on doing this cleaning of the carb tonight, I have one more issue maybe I can look at while it is off.

Sometimes my bike won't idle, it will stall out. I adjust the idle screw than it will idle to damn high. Turn it down slightly and it will stall out a gain. It's like I can't find the sweet spot. any idea about that?[/b]

Sounds like dirt or varnish in the carb. Probably blocking the low speed jet. Take the carb apart and clean all the passages out.
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Old 06-26-2009, 12:36 PM   #8
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i idle mine at about 1450 so i can shift in deep water, but should idle fine at 1300 or so (there's a min idle speed to keep oil pressure up but i dont remember what it is), could be another problem of sticking choke or dirt as said above. a good cleaning should take care of it. drain float bowl, take your glove box off, undo boot from airbox to carb then loosen clamp in front of carb, comes right out now, disconnect throttle from carb, unplug choke, gas line and vac lines. now your free just follow wyo's instructions and dont know if it says but dont spray carb cleaner on the slide seal, it'll swell up and be hard to seat back. make sure you take everything apart and spray carb cleaner and compressed air through, esp idle mix screw
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06 400 Auto
07 sidepanels
2 sets 5000k HID's
27-10-12 27-12-12 Maxxis Mudbugs on stock steel wheels
a few fender washers per stud on front and 1 1/2" wheelspacers on rear
EBC solid rotors and sv pads
EPI wet springs
EPI secondary spring reclocked 90
primary machined 1.5mm by ///AIRDAM
1.2mm shim in primary
2" snorkels
UNI filter
Dynojet kit
Yost idle mixture screw
slide drilled and spring clipped
exhaust mod (swiss cheese can with 2" outlet) and pipe wrapped
diamond plate rear inner fenders
sanny shock bushings
wyo's caster mod (2 degrees steers great)

01 raptor <strike>660</strike> 719
stock rear shock and swingarm
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