Question about 1998 Suzuki GSF 1200 Bandit S

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Will not start.

I tried adjusting the idle on the bike. With the choke on just a little it would idle and and I actually rode it. Day two, now it will not start. When trying to start now it backfires.

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It sounds to me like you have altered the carb balance and not the idle as you tought,you cant adjust idle with the choke operating even just a bit as this changes which circuit you are adjusting in the carbs,unless you have a set of carb balancers available you will have to take the bike to a shop to get the carbs reset to standard

Posted on Jul 04, 2009

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Posted on Jan 02, 2017

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Idles with 1/2 choke. If open choke, or throttle - engine dies without any RPM spike. Carb was cleaned, jet is clean. When idles, there is gas in the primer bulb.


Hi, Andrew and the usual suspects are:

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2. Fuel filter clogged.

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I have a 2007 cbr600rr, and I have noticed lately my bike idles around 1900-2000rpm, normal is around 1400-1500rpm(this is when the bike is warm), also when using the engine for braking it feels a little...


Hi, Anonymous and the usual suspects are:
1. Throttle cables improperly adjusted, pinched or need lubrication.
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Why motorcycle starts but only stays running when I open throttle?


Hi, Anonymous and the usual suspects are:
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For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
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Hi, Anonymous and the usual suspects are:
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2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
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rate my post for perfect solution
Instructions
    • 1 Open the choke by pulling the choke lever on the left handlebar control toward you. Set the bike on its kickstand, put it in "Neutral" and start it up. Allow the Road Star to warm up for about 10 minutes before continuing with the adjustment procedure.
    • 2 Locate the idle adjustment screw on left side of the bike just below the rider's seat. Twist the adjuster screw clockwise one full turn. This will ensure the bike stays alive so you can adjust it to the proper setting.
    • 3 Close the choke lever and listen to the engine carefully. Twist the idle adjustment screw slowly counterclockwise. You should hear the engine speed start to slow.
    • 4 Twist the idle screw counterclockwise until you hear the engine start to sputter and die. When this happens, stop and turn the screw one half turn clockwise. Your bike should now be idling at the correct speed.



1_16_2013_4_26_18_am.jpg

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1 Answer

My 05 VTX 1300R just sat and was only ran 1 time in almost 2 years w/ Stabil in the gas.It ran fine last time I rode it, fall of 2009. Statred today and acts like it is starving for fuel, will not idle off...


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2 Answers

Bike won't stay running without the choke out.


I also own a 1980 GS550L that had a similar problem, first thing I did to fix it is to add a can of seafoam to a half of tank of gas or less. The bike can run on pure seafoam if needed. Let it run for 3-5 minutes and shut if off. Let it sit for another 5 minutes then start the bike and take it for a ride. After 20 or 30 miles go ahead and fill the tank up with gas. Within a tank or so you should start noticing it idleing better and more power. On the GS550 the choke self adjusts as you use the throttle. There is no need to push it in the rest of the way. Even if you are extremely hard on the bike opening the throttle all of the way it will never go all the way in unless you push it all of the way in. I own two GS's and niether of which prefer to idle if I push the choke all of the way in. Once I did this and learned just to leave the choke alone and let it stay where it self adjusted as I rode the bike it has never stalled since at a light. You should be able to pick up a can of seafoam at any local autozone or advanced autoparts. Most likely your idle circuit on the carb is currently gummed up and the choke circuit is all that is that is working. Myself and freinds have used Seafoam to solve this problem and just about anything with a motor that was parked with gas in for an extended amount of time without any stabilizer added. It's well worth the $8 versus pulling the carbs apart.

Mar 28, 2009 | 1980 Suzuki Gs 550 L

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