CBR 600 Startup Problem - Wrist Twisters
 
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post #1 of 8 Old 03-07-2009, 08:02 PM Thread Starter
 
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CBR 600 Startup Problem

Hey guys,

I have a 2002 Honda CBR 600 F4i. Just last week it will no longer start up in first gear. I now have to shift it into neutral before it will turn on. Before I was always able to start it in first gear. I thought it might be the kick stand sensor, but once the bike is started, when it is put into gear and the kick stand is put down it shuts off again. So I'm guessing it isn't a problem with the kickstand. Does anybody have any ideas of what it might be?

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post #2 of 8 Old 03-07-2009, 10:35 PM
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check the clutch wires... there is also a sensor on there that will do the same thing.

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post #3 of 8 Old 03-08-2009, 07:25 AM
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I know it seems obvious, but are you pulling in the clutch every time? If so, Jeef is on the right track by checking the clutch safety switch.

I always put mine in neutral anyway when starting.Eliminates an unnecessary "oh sheit" error from occurring.

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post #4 of 8 Old 03-08-2009, 08:49 AM
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I tried to start it, and I know that I pull in the clutch every single time. Where is the clutch sensor? How do you check it?

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post #5 of 8 Old 03-08-2009, 08:55 AM
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two wires on the clutch pirch. little botton sticks out and hits the lever when released. pull the clutch you should see it chilin in there. i forget which way it is, one way (clutch pulled) it should have almost no resistance (or vice versa) bet someone could tell you which way is right.
but if you check the wires coming out of the switch and the restance rate goes from good connection to nothing while pulling lever and releasing you are good there.

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post #6 of 8 Old 03-08-2009, 08:57 AM Thread Starter
 
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Quote:
Originally Posted by Ridge View Post
I know it seems obvious, but are you pulling in the clutch every time? If so, Jeef is on the right track by checking the clutch safety switch.

I always put mine in neutral anyway when starting.Eliminates an unnecessary "oh sheit" error from occurring.

I just went outside and tried pulling the clutch. I already do that every time but I had to double check. Still the same problem. I'll do my research.

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post #7 of 8 Old 03-08-2009, 09:57 AM
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Take the two wires on the clutch switch and remove them. Find a small piece of metal to jumper the two connectors together, bypassing your clutch switch. If it starts up in gear (make sure you pull your clutch lever in before trying) then it's a problem with the clutch switch. If it is, let me know and we can work through removing it and cleaning it which will probably fix the problem.

Go here and look at this post by a very fine fellow. It's a 919, but the same concept on your machine. Scroll down and there's a picture of the switch wires on a 919. Should be in the same location on yours.
https://www.wristtwisters.com/forum/s...ead.php?t=3598

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post #8 of 8 Old 03-12-2009, 07:02 AM Thread Starter
 
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Quote:
Originally Posted by HondaJim View Post
Take the two wires on the clutch switch and remove them. Find a small piece of metal to jumper the two connectors together, bypassing your clutch switch. If it starts up in gear (make sure you pull your clutch lever in before trying) then it's a problem with the clutch switch. If it is, let me know and we can work through removing it and cleaning it which will probably fix the problem.

Go here and look at this post by a very fine fellow. It's a 919, but the same concept on your machine. Scroll down and there's a picture of the switch wires on a 919. Should be in the same location on yours.
https://www.wristtwisters.com/forum/s...ead.php?t=3598

I tried what you said and it did start up in first gear. I am going to Florida today to ride around for a week so I'll try taking it apart and cleaning it when I get back.

Thank you!

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