Question about 2005 Suzuki GSF 650 N Bandit

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My 2005 650 bandit seems only to be running on 3 cylinders at idle speed and at low revs.it usually cuts out after about 10 seconds when idling. under acceleration it goes back to running on all cylinders but is very rough. when i remove the plug cap from number 4 cylinder it makes no difference. what should i do? help please

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I'd also add - check the carbs. My bike had a problem immediately following getting it out of winter storage - initially everything seemed fine and then one of the cylinders was firing. The dealer diagnosed a gummed up carb. They had to take the tank off and clean the carb.

Posted on Aug 09, 2009

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First thing that I would do is a compression test. Go to you local auto part store and tell them you need to buy a compression gauge. It should come in a kit that has a gauge, hose and adapters. Remove all the spark plugs. On the cylinder that you think isnt running screw the adapter and hose into the spark plug hole then hook the gauge to the hose. Once done crack the motor over buy pressing the start button and watch the gauge. If there is good compression the gauge will build up pressure and stay up. If the compression is bad the gauge will eather go up and fall or not go up at all...after that give send me an email and I can tell you where to go from there....cj_monaco@hotmail.com

Posted on Jun 21, 2009

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I have a 1250 bandit 2009 s on start up the rev counter doesn't move and my speedo doesn't light up also it will run for about 10 seconds then cut out thanks


Hi, Nick and the usual suspects are:
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Hi, Anonymous and the usual suspects are:
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1 Answer

I have a 1990 yamaha fzr 600 that doesn't idle good when its cold and if its sits and I try to take off on a hill it cuts out like its not getting enough fuel but after its running it will go up hill...


Hi, Kevin_wri799 and the usual suspects are:
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4. Loose low-speed jet.
5. Plugged low-speed jet.
6. Contaminated or plugged low-speed circuit.
7. Enrichner valve/choke not seated or leaking.
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2 Answers

Will not idle


blocked carbs, get a good fuel system cleaner, if you in USA get Berrymans B12, double the dose and mix in tank. run til hot then leave to stand overnight. also if you can remove the air cleaner to get to carb intake, get spray carb cleaner an chuck a load in there. also check to see if you have a fuel filter inline

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Looks like your Idle Speed Control Servo is playing up. It's a device that controls your idling speed and any load compensation on the engine as well (raising the idle speed when turning the steering, whern turning your lights on...etc). A visit to the dealer should confirm the fault as they can plug in the diagnosis machine to check the proper operation of it. Let us know how you get on. Cheers.

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