91 Katana 600F won't idle? - Motorcycle-Journal Forums

Liljohn1998 · 09-26-2004, 04:42 PM

Has anyone had this problem? Working on a 91 katana 600F, it has bees sitting for 2 years without being started. Carbs were just 100% cleaned, Plugs cleaned, oil changed, and so on. It runs great till till I turn the choke all the way off. Turning up the idle does not help. Leaving choke on 1/4 is the only way it will idle at 1000-1500 R's. Have a manual coming to check the needle highth and other stock stuff. By the way, the bike has 16,800 miles, normal cam/valve noise. Did I miss something while cleaning the carbs? just sounds like not enough gas at idle? Thanks for any replies, John

Dave2122 · 09-26-2004, 09:35 PM

Make sure you have the Carbs Syncronized and that you have the correct plug gaps.

The Chad · 09-27-2004, 01:38 AM

one of my old bikes did that, it ended up being a tiny pice of crud in one of the pilot jets. But as the above says, synk the carbs. also, how is the connection in the plug wire ends???

montysan · 07-11-2006, 01:35 PM

I have a Katana 600 in my shop that I can't get to idle! Carbs are clean, new plugs, valves adjusted it just won't idle. It will idle down to 3000 rpm and thats with the idle screw about a turn from being all the way out but when I turn the idle down to where the screw isn't even touching it just drops to 600 rpm or so then dies, there's no middle ground! I've been messing with this thing for days now. There must be something I'm missing! Can anyone help?

09-26-2004, 04:42 PM	#1 (permalink)
Liljohn1998 Newbie Joined: Sep 2004 Location: Chicago Burbs Posts: 3	91 Katana 600F won't idle? Has anyone had this problem? Working on a 91 katana 600F, it has bees sitting for 2 years without being started. Carbs were just 100% cleaned, Plugs cleaned, oil changed, and so on. It runs great till till I turn the choke all the way off. Turning up the idle does not help. Leaving choke on 1/4 is the only way it will idle at 1000-1500 R's. Have a manual coming to check the needle highth and other stock stuff. By the way, the bike has 16,800 miles, normal cam/valve noise. Did I miss something while cleaning the carbs? just sounds like not enough gas at idle? Thanks for any replies, John

09-27-2004, 01:38 AM	#3 (permalink)
The Chad Site Wrench Head Joined: Nov 2003 Bike: crashed Location: Duncan B.C. Posts: 635	one of my old bikes did that, it ended up being a tiny pice of crud in one of the pilot jets. But as the above says, synk the carbs. also, how is the connection in the plug wire ends??? __________________ A truly wise man asks more questions than he answers, I think I must be retarted

07-11-2006, 01:35 PM	#4 (permalink)
montysan Newbie Joined: Jul 2006 Posts: 2	91 Suzuki Katana 600 idle problems I have a Katana 600 in my shop that I can't get to idle! Carbs are clean, new plugs, valves adjusted it just won't idle. It will idle down to 3000 rpm and thats with the idle screw about a turn from being all the way out but when I turn the idle down to where the screw isn't even touching it just drops to 600 rpm or so then dies, there's no middle ground! I've been messing with this thing for days now. There must be something I'm missing! Can anyone help?

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09-26-2004, 09:35 PM	#2 (permalink)
Dave2122 Sprocket Pilot Joined: Sep 2004 Bike: Which one of the 9? Location: USA Posts: 887	Make sure you have the Carbs Syncronized and that you have the correct plug gaps.

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