SuzukiSavage.com - Bike will not Idle

fisherman

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SuzukiSavage.com
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Bike will not Idle
07/01/20 at 03:39:16

I bought this in Sept. 2019 9000 miles and has a Raptor petcock......
Savage LS650 with a Mikunibs40 Carb....put about 300 miles on last oct. filled the Gas and stabil.. put away till this May...Had riden about 40 miles this year when I was coming to a stop or downshift to lower rpms.. wanted to die. I took it out 2 weeks ago and ended up pushing it home about 2 miles...just died and I cranked it dead trying to start again. Since then I have changed the gas, did a SeaFoam soak in the carb for 24 hrs. cleared all the vacuum leads, and changed the fuel line. and set the idle mix screw to recommended . Now when I start it.. it runs very strong till it warms and the idle drops. If I do not touch the throttle it will run strong for about 10 mins, stumble and die. If I throttle up during this time it will immediately stumble and die. ... it is a 1995.

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Gary_in_NJ

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Amongst the Twisty Roads

Re: Bike will not Idle
Reply #1 - 07/01/20 at 06:04:56

What is the condition of the spark plug and air filter? What jets are installed? What is the condition of the vacuum diaphragm for the slide? What is the condition of the slide?

A few things can cause the warm running issues you are having (such as valve clearance and the coil), but before I start making suggestions, you need to run down the easy things.

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A life-time student of motorcycling.
LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS
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fisherman YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 8	Re: Bike will not Idle Reply #2 - 07/01/20 at 06:11:07 New spark plug gapped at .32..I am having the carb rebuilt this week. as I would not know a problem with it if I was looking at it. I am hoping this will take care of the issue. If not I will be back here asking for other suggestions. Thank you for your response.
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LANCER

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Savage Beast
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Posts: 10584
Oklahoma
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Re: Bike will not Idle
Reply #3 - 07/01/20 at 08:01:19

Hopefully your carb will be returned to you fully functional, but if not consider......
If fuel is flowing to the carb from the tank properly, and the plug is good and you have spark, then the problem is likely still inside the carb.
Completely disassemble, remove/clean/check every jet, clean/check every passageway for air/fuel flow with air/carb cleaner/carb cleaning tool.
This will solve the issue or show you what part may be causing it.

It does take some time to do (pretty easy for an afternoon) but it can save you lots of frustration and additional down time.
It can teach you a lot about the carb in the process as well.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Bike will not Idle Reply #4 - 07/01/20 at 09:21:37 .I am having the carb rebuilt this week.. Any parts that get replaced,, you want the old ones.. How did ya find a qualified carb mechanic?
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fisherman YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 8	Re: Bike will not Idle Reply #5 - 07/01/20 at 14:03:59 engine and Carb garage close to home, specializes in Harley work , but the Mechanic/ Owner was very interested in helping & confident he could fix the problem. If yo would like the name i can give it, wasn't sure it would be cool to do so without asking
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Bike will not Idle Reply #6 - 07/01/20 at 16:34:10 Im not needing it,, but thanks,, just checking to see if you hired the guy who mows lawns and fixes junk mowers or a mechanic,,Sounds like you got a qualified person,
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fisherman YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 8	Re: Bike will not Idle Reply #7 - 07/02/20 at 04:31:29 Best I could find after reading some reviews..will definitely let you know the outcome!!!....VROOM VROOM
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fisherman YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 8	Re: Bike will not Idle Reply #8 - 07/13/20 at 13:39:09 the person who is doing the rebuild of my carb found that after soaking the float for a while...it did not float anymore...can you give me any suggestions on where I can order a replacement float, it seems his aftermarket suppliers can't help???
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norm92de Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1180 El Paso TX Gender:	Re: Bike will not Idle Reply #9 - 07/13/20 at 14:15:39 Try Ron Ayers or Bike Bandit. One of them should have an OEM float. Could the mechanic repair the old float?
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Gary_in_NJ Serious Thumper Offline LS650 Cafe Racer Posts: 2625 Amongst the Twisty Roads	Re: Bike will not Idle Reply #10 - 07/13/20 at 14:58:37 Our floats are plastic and can’t be braised.
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Dennisgb Full Member Offline SuzukiSavage.com Rocks! Posts: 176 Maplewood MN Gender:	Re: Bike will not Idle Reply #11 - 07/13/20 at 15:04:46 Mikuni parts are readily available. https://www.ebay.com/p/171171795
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fisherman YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 8	Re: Bike will not Idle Reply #12 - 07/22/20 at 03:54:27 Ok ..I finally got the carb back from the shop. seems there were quite few things going on with it, Jets F-dup, and the float was shot. now I need a procedure recommendation on installing it ie; air box boot on the box , or put it on after the carb is on?....suggestions??
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Gary_in_NJ Serious Thumper Offline LS650 Cafe Racer Posts: 2625 Amongst the Twisty Roads	Re: Bike will not Idle Reply #13 - 07/22/20 at 06:15:09 There's no magic to getting it on. Personally I find it easier to install without the tank in place. I also find it easier to install rotated 90 degrees from center. Other than that, don't be afraid to man-handle it into place. The boots are rubber and can be moved where they have to go.
Back to top	A life-time student of motorcycling. LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS My LS650=> http://suzukisavage.com/yabb2.2/Attachments/Left.JPG IP Logged

fisherman YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 8	Re: Bike will not Idle Reply #14 - 07/22/20 at 08:00:00 yup you are right about the manhandle, put the air box boot on first and twisted it in.. thanks for your response...now for the rest.....
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