Proper idle? - Kawasaki KLR 650 Forum
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post #1 of 13 Old 01-26-2009, 09:45 PM Thread Starter
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Proper idle?

It seems to me like my bike has always idled too high. It fluctuates between 1500 and 1600...thoughts?




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

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Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
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post #2 of 13 Old 01-26-2009, 10:21 PM
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1200 to 1300rpm is about right.
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post #3 of 13 Old 01-26-2009, 10:25 PM
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I think that alot of us already look to you for the answer haha but have you replaced your plug and verified the gap ? It sound's like an ignition issue. do you have an inline fuel filter ? you might have some debris in your lowspeed jet I also think 15 to 1600 is kinda high for warm idle don't you?
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post #4 of 13 Old 01-27-2009, 10:46 AM
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I believe the actual specs are between 1000 and 1500. Mine was around 1200 to 1300 and fluttered. It would sound pretty ugly any lower than that. After the 22cent mod it sits at 1000 steady. It is cold here right now though so that may change when it warms up. Air density is a function of temp and humidity which has a big effect on engine performance. I was an airline pilot in a prior life. When you hear of airplanes in high altitude areas running into mountain sides it's because the engine can't produce enough power at that altitude and temp to pull the plane fast enough to produce enough lift to get over the mountain. These things have the same effect on our little thumpers. I see your in Cali Lockjaw. Have you done the 22cent yet? Running that high on RPMs has to be hard on your cooling system too. Sounds like your running lean at idle which is why you have to have it up so high to idle. Lean bikes run hot. Does it seem like your fan kicks on all the time?

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post #5 of 13 Old 01-27-2009, 10:57 AM Thread Starter
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Wow, a lot of good questions. I haven't done the 22 cent mod because the bike is still under warranty. Made me a little nervous. And I got lazy after doing to the doo.

It has been this way ever since I got it Motorhead, so I don't know...haven't checked the plug, though.

Tzuk, the bike doesn't seem hot...it doesn't really get that hot in SF. Hell, it's forty degrees today. The gauge never even rises when riding and it will get to the middle and the fan will kick on, but only on a warm day if I am sitting in traffic.

I was basically trying to get an idea of the proper range and was going to adjust the idle screw. Seems like an easy place to start. Is there any reason that is a bad idea?

This stuff is a lot easier to do on my other bike. Things were simpler 35 years ago. (And yes I know, the KLR is very simple...as am I).




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

PPMC #1.
Soon, we ride.

AKA JD Mader or you can call me "Dan" just not early for dinner.

Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
-------------------
2008 KLR 650
RIP DM - Soon, we ride.
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post #6 of 13 Old 01-27-2009, 11:18 AM
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I wish it was in the forties!!!! I have a snow storm coming tonight! Anyway, there is no reason you can't back the idle down some. You'll know if the bike doesn't like it. It will run rough and maybe stall if you back it down too much. Your looking for the lowest, smooth rpm you can achieve. Smooth is the key word, you don't want it knocking and fighting to run.

My garage:
97 KLR650
06 SV1000S
84 FT500 Ascot
75 GL1000 Goldwing
68 CB350
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post #7 of 13 Old 01-27-2009, 11:26 AM
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It won't to hurt playing with your idle screw at all.
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post #8 of 13 Old 01-27-2009, 11:52 AM Thread Starter
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Cool, that's what I thought. Thanks guys. I think the dealer just set it too high. I'll play around with it.

And sorry for the 40's...whoops...my parents live in PA so I get daily weather reports. Should count my blessings, eh?




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

PPMC #1.
Soon, we ride.

AKA JD Mader or you can call me "Dan" just not early for dinner.

Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
-------------------
2008 KLR 650
RIP DM - Soon, we ride.
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post #9 of 13 Old 01-27-2009, 01:14 PM
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I think spec is 1200-1400.
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post #10 of 13 Old 02-01-2009, 09:11 PM Thread Starter
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Got it down to 12-1300 adjusting the idle screw. Bike seems happier. Harder to start in the cold though and I am getting the minor popping on deceleration now, so it's acting like a proper lean KLR.

Side question. Is it normal for the tach needle to jump/twitch? The only bike I've ever had with a tach besides the KLR is my 73 honda and it sits like a rock at 14K? The KLR twitches between 12 and 13? Before it twitched between 15 and 16.

I know I should do the 22 cent mod...don't have the time right now.




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

PPMC #1.
Soon, we ride.

AKA JD Mader or you can call me "Dan" just not early for dinner.

Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
-------------------
2008 KLR 650
RIP DM - Soon, we ride.
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