vn900 FI light - Kawasaki Motorcycle Forums
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post #1 of 22 (permalink) Old 03-04-2008, 09:21 PM Thread Starter
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vn900 FI light

Having an issue with my '06 vn900. The FI light comes on after the bike is warm and only at idle speed. As soon as I hit the throttle, it turns off, and stays off until I come to a complete stop and the engine speed returns to normal idle speed. I have cobra pipes, fi2000r, and BAK. It didn't start happening until after I installed the BAK. I had the pipes and fi2000r installed at the shop. Is there any way it could be the result of idle speed being too low? I have seen other threads on here about letting it idle too low. Just curious if anyone else has experienced this. Thanks in advance for any help you can give me.

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post #2 of 22 (permalink) Old 03-04-2008, 09:25 PM
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Had the same issue. Bump the idle up a bit.
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post #3 of 22 (permalink) Old 03-04-2008, 10:17 PM
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Yeah, the idle is set to low.

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post #4 of 22 (permalink) Old 03-05-2008, 01:36 AM
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+1.
Idle spec is 1,000, +/- 50.
Idle it too low to make it sound like a Harley and you'll starve the top end for oil and gall the cam bearings.

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post #5 of 22 (permalink) Old 03-05-2008, 01:42 AM
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Yikes! Hence, the red warning light.

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post #6 of 22 (permalink) Old 03-05-2008, 02:15 AM
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Yup... Harleys, RoadStars, and even the V2K are pushrod type engines. The rocker arms can tolerate a few minutes of low oil pressure while sitting at a red light, but the 800, 900, 1500/1600 are all overhead cam engines.

They WILL idle down to 650-700 RPM... and you'll get an oil pressure light.

That's what I like about the LCD display on the 1600/V2K... in addition to getting the EFI light, you also get a character on the LCD that tells you what the problem is. EFI light alone = fuel/computer malfunction. Overheating or low oil pressure and you get an icon on the screen.

Here's the 1600 dash during startup/shutdown:

http://personal.linkline.com/rlockye...600startup.mpg

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post #7 of 22 (permalink) Old 03-05-2008, 02:21 PM
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Rich is correct. Nearly every metric bike I encounter on the road has the idle set way too low. I guess we all think it should sound like a Harley (or John Deere). Crank it up a couple of hundred and see what happens. If the light remains on take it to the dealer and get it fixed. Home repairs on a system that you might not fully understand is a mistake. Please let us know the outcome.

Enjoy the ride!

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post #8 of 22 (permalink) Old 03-05-2008, 07:55 PM Thread Starter
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Thanks guys. I guess if I want bigger sound, I should probably get a bigger bike! Or, just be happy with what I've got. Which I am!

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post #9 of 22 (permalink) Old 06-21-2008, 01:09 AM
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I'm new to biking. I grew up with off-road vehicles and ATVs but finally bought a bike after having wanted one since the age of six(playing with motorcycle lego man).

Now that I'm about to turn 25 and bored with life I bought a Vulcan 900 Custom.

It has been very fun and I took to handling it pretty quick once I got the clutch timing down.

The bad thing, aside from the $114 initial service charge(oil change) after 600 miles, is that my FI light began coming on today.

Now that I have been burned with a $114 oil change I don't like the idea of taking my bike in to the kawi dealer because I'm not a wealthy guy with a lot of money to throw at them.

My light only comes on when stopped at a light or after starting the bike and idling. It sounds like you folks with the low RPM problem that need to be adjusted. I will ask for an opinion at the dealer tomorrow when I pick up my tags but if it's something simple that I can adjust then I'd much rather do it myself so I can pay my bills

I have been riding this bike for 2.5 weeks and have put 1,000 miles on the bike, with 650 being a weekend trip. I'd say that I've broken in the bike in a short amount of time. What can I say? I can't leave it alone :P
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post #10 of 22 (permalink) Old 06-21-2008, 01:17 AM
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Idle adjustment is the little black knob... normally under the airbox on the right side. Should be toward the rear, easy to reach while seated.

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