Motorcycles, Snowmobiles, Go-Carts, ATV's and Golf Carts - Suzuki Bandit will not idle

2001 Suzuki Bandit GSF1200S will not idle. Bike has a Kerker Slip on and a stage III jet kit.

The bike cold starts but will not idle. The manual choke on the bike has to be played with in order to keep it running after being warmed up. The former owner claims all the motorcycle needs is sparks plugs. Also the bike has been sitting for a couple of years the garage and has 10k miles. Please advise.

Well, it may need spark plugs too, but the problem with the idle is the carburetor needs cleaning. The idle circuit is plugged.

Sometimes it can be cleaned on the bike by putting solvent in the carb bowl and letting it sit, but more often it needs to be taken apart to get it clean.

Well, it may need spark plugs too, but the problem with the idle is the carburetor needs cleaning. The idle circuit is plugged.

Sometimes it can be cleaned on the bike by putting solvent in the carb bowl and letting it sit, but more often it needs to be taken apart to get it clean.

This must be the flat paddle like sensor on the side of the carb? I was thinking it had some bad gas in it also on top of it. However, I don't think it improved.

When you say clean it, do you mean just seperate the major parts and soak it in solvent?

Do you have to drain the tank to clean the sensor?

Can you use a automotive carb cleaner?

I am also thinking plugs are the least of my problems.

The sensor is the throttle position sensor. Because of the carb setup on that bike, I wouldn't advise for a DIY'er to tackle a disassembly. Those four carbs may be more than you would want to tackle.

I believe I would drain all the gas from the tank and put in about two quarts of fresh gas and a strong solution of carb cleaner. Use an automotive type. Then get it started and and run it about five minutes which should get the float bowls full of fuel/cleaner. Let that sit for about an hour and start it again. Then see if the no idle condition cleared up.

If it shows any sign of improvement, fill the rest of the tank with fuel and try riding it for an extended period. With a little running time it should clean up.

The sensor is the throttle position sensor. Because of the carb setup on that bike, I wouldn't advise for a DIY'er to tackle a disassembly. Those four carbs may be more than you would want to tackle.

I believe I would drain all the gas from the tank and put in about two quarts of fresh gas and a strong solution of carb cleaner. Use an automotive type. Then get it started and and run it about five minutes which should get the float bowls full of fuel/cleaner. Let that sit for about an hour and start it again. Then see if the no idle condition cleared up.

If it shows any sign of improvement, fill the rest of the tank with fuel and try riding it for an extended period. With a little running time it should clean up.

Thanks for the advice on the carbs. I know they are like 4 one barrel carbs and are synchronized.

I can do the plugs myself? All I have to do is take off the tank? From there the plugs are recessed or does the valve cover come off? Sorry to ask so many question but I bought the bike from someone and want to make sure it runs right before paying off the balance.

The plugs should be accessible with the valve cover in place.

The sensor is the throttle position sensor. Because of the carb setup on that bike, I wouldn't advise for a DIY'er to tackle a disassembly. Those four carbs may be more than you would want to tackle.

I believe I would drain all the gas from the tank and put in about two quarts of fresh gas and a strong solution of carb cleaner. Use an automotive type. Then get it started and and run it about five minutes which should get the float bowls full of fuel/cleaner. Let that sit for about an hour and start it again. Then see if the no idle condition cleared up.

If it shows any sign of improvement, fill the rest of the tank with fuel and try riding it for an extended period. With a little running time it should clean up.

I tried putting in a bottle of fuel injection cleaner. It idles a little better but still have a flat spot where the bike shuts off when putting the choke in a fully warmed up position.

I think I would get it going and run it for a while. It sounds like something that can clear up with the cleaner and some new gas in it.

It is cleared up tremendously. It is almost there. However, there is a small flat spot. What solvent would you recommend to put in? I only put solvent in it once. I would like to get this totally cleared up. Thanks.

Put Seafoam in it. A bike like that will straighten up really fast with some riding time and a few redlines.

Hi friends, I like to showcase my motorbikes, cars and other gaming shows. i am very happy to tell that this site brings all of us to point, where we can discuss on one point and get solution of it.
----------------------------------
jack Steven

just pull the carbs and do it rite and clean them.if the pilots are plugged no cleaner will go thru.you may need some small wire or a brissel from a wire brush to get them clear also other parts of the carbs may be a problem or semi plugged.Here in our shop we use an ultra sonic cleaner.but that just makes it easy for us.

just pull the carbs and do it rite and clean them.if the pilots are plugged no cleaner will go thru.you may need some small wire or a brissel from a wire brush to get them clear also other parts of the carbs may be a problem or semi plugged.Here in our shop we use an ultra sonic cleaner.but that just makes it easy for us.

Your right canamman. What do you charge and were is your shop located? I'm in Central NJ.

Put Seafoam in it. A bike like that will straighten up really fast with some riding time and a few redlines.

I have spent $10 so far and riding time. I'm willing to try Seafoam. I have never seen it for sale anywhere. Who sells this cocktail?

I'm also waiting for my Haynes manual. I have cleaned carbs in the past but would rather have a professional do the carb cleaning.

The flat spot wouldn't be just off idle as you go into mid throttle would it?

wait for the book and do it your self.all you need is air,carb cleaner,and small thin wire like wire from a wire brush works good . you can go to auto parts and get a gallon of cold parts cleaner and soak the parts over night.be sure to drill out caps over pilot air screws then bottom them counting how many turns it takes then remove them to be sure the passage is also clear.when you put them back in set them the same amount of turns + 1 out it may warm up better for you.is their a pipe or after market air cleaner?.Id be careful running chemicals thru that motor they can make it run very lien. Lien means hot you could do valve damage or fry the spark plug's.Gas today sucks not a bad idea to use stable if not going to be ridden for any amount of time.or go out and buy a nice fuel injected ducati.

if you dont want to wait for book follow this link find your bike,i looked and it is their and you can down load the suzuki book.we use this all the time

http://www.carlsalter.com/motorcycle-manuals.asp

if you dont want to wait for book follow this link find your bike,i looked and it is their and you can down load the suzuki book.we use this all the time

Free PDF motorcycle manuals for download! (http://www.carlsalter.com/motorcycle-manuals.asp)

Thanks! However it was too late.

Put Seafoam in it. A bike like that will straighten up really fast with some riding time and a few redlines.

About a month ago. I tried Seafoam and it resolved the idle problems. Taking the carbs off is not necessary. The bike idles with choke in the fully warmed up position. It cleared it up VERY fast.

I am convinced this is the best stuff on the market. I will use it as a fuel stabilizer and in as fuel system cleaner in all my vehicles.