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idle fluctuates (Read 92 times)

rl153

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S40 Just right!

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Bloomfield,CT
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idle fluctuates
07/09/15 at 16:18:28

My bike is an 05,6500 mi.It has a raptor petcock. It runs strong but the idle reads lower sometimes and higher at others.I have it set so most of the time its 1350 rpm ,but sometimes it s 1500 and sometimes if I am coasting to a stop it stalls .i think the idle drops.It starts right back up,and then will run fine for a long time.If I rev it while i'm slowing down its fine. What do you think the problem is?Thanks!

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squiggy YaBB Newbies Offline Furiously Savage Posts: 32 Michiana	Re: idle fluctuates Reply #1 - 07/09/15 at 16:24:21 Pull your petcock and and check the filters. Beyond that, maybe jets are starting to clog?
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rl153 Serious Thumper Offline S40 Just right! Posts: 906 Bloomfield,CT Gender:	Re: idle fluctuates Reply #2 - 07/09/15 at 17:17:40 thanks
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chzeckmate Serious Thumper Offline Be the person your dog thinks you are Posts: 514 Houston, Texas Gender:	Re: idle fluctuates Reply #3 - 07/09/15 at 18:37:26 Possible vacuum leak. I'd check that first. It would be helpful to know more specifics about your bike. Do you have an aftermarket muffler, jets, etc.?
Back to top	'05 S40, dyna muffler, rejet, high flow filter, Mobil 1 Racing 4T, Shinko 230 set with 140/90 rear, raptor, seat lift, LED running lights/signals, tach, reversed risers, homemade MR10 Lexan windscreen IP Logged

verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: idle fluctuates Reply #4 - 07/09/15 at 18:44:07 a good carb cleaning would be the 1st step. sometimes it's the TEV sometimes other things. check your float height. stalling after suddenly cutting it after a long run is also a known issue.
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rl153 Serious Thumper Offline S40 Just right! Posts: 906 Bloomfield,CT Gender:	Re: idle fluctuates Reply #5 - 07/09/15 at 18:53:43 thanks, whats the tev
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: idle fluctuates Reply #6 - 07/09/15 at 19:18:09 http://suzukisavage.com/cgi-bin/YaBB.pl?num=1267767908
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savagerider87 Full Member Offline Riding a quality Japanese machine since '13 Posts: 224 Northern NY Gender:	Re: idle fluctuates Reply #7 - 07/09/15 at 19:43:05 check your pilot jet and make sure you didn't suck some gunk up into it
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rl153 Serious Thumper Offline S40 Just right! Posts: 906 Bloomfield,CT Gender:	Re: idle fluctuates Reply #8 - 07/09/15 at 20:07:48 I have a new rubber cap on the vacuum port from the old petcock on the carb.Are there any other vacuum lines on the bike ?The muffler is stock.I was told by the previous owner when I bought the bike 6 years ago that the carb had been jetted. I'm not sure what that meant.Thanks!
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chzeckmate

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Re: idle fluctuates
Reply #9 - 07/10/15 at 02:23:35

rl153 wrote on 07/09/15 at 20:07:48:

I have a new rubber cap on the vacuum port from the old petcock on the carb.Are there any other vacuum lines on the bike ?The muffler is stock.I was told by the previous owner when I bought the bike 6 years ago that the carb had been jetted. I'm not sure what that meant.Thanks!

Check out this youtube video for how to check for vacuum leaks. This is how I'd start diagnosing. This is so simple and just takes a minute. If you find a vacuum leak then you can just fix it. If you don't have a vacuum leak you can scratch that off the list and continue diagnosing. If it's not a vac leak then I'd suspect a carb issue and give it a thorough cleaning as suggested above.
https://www.youtube.com/watch?v=XzjSEYB9RDU

« Last Edit: 07/10/15 at 13:34:02 by chzeckmate »

'05 S40, dyna muffler, rejet, high flow filter, Mobil 1 Racing 4T, Shinko 230 set with 140/90 rear, raptor, seat lift, LED running lights/signals, tach, reversed risers, homemade MR10 Lexan windscreen

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rl153 Serious Thumper Offline S40 Just right! Posts: 906 Bloomfield,CT Gender:	Re: idle fluctuates Reply #10 - 07/10/15 at 06:21:38 I watched a video about vacuum leaks ,Thanks!
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