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post #1 of 22 (permalink) Old 06-14-2019, 11:33 AM Thread Starter
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2008 KFX start no start

Hi. Recently bought a 2008 KFX450r. Has some issues. Last Kawi I owned was a 1973 Bushwhacker 175 enduro back in 1981.

Last edited by Stauvo; 06-14-2019 at 12:45 PM. Reason: Changes
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post #2 of 22 (permalink) Old 06-16-2019, 12:35 AM
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Still having starting issues...???

First make sure the battery is fully charged 12.8v + standard..

Make sure the vehicle down sensor is mounted properly...see picture below for location...

Does your f.I light remain ON or flashing when trying to start....??? see picture below...
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post #3 of 22 (permalink) Old 06-26-2019, 10:19 PM Thread Starter
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Good evening. I just saw your reply tonight.
I’m a 50 yr old dad whom had 86’ 250R and 89’ 250R in early my early 20’s and had fun tweaking them. My son and I bought this 08 450r and I admit I was not prepared for something with a ECM and sensors and may have big problems. The stator is not charging and also
I put a new battery in it. Rode it on a all day trail ride and ran great despite hard starts. Took all apart and replaced broken decompression spring. Also pulled out a old power commander that was only attached to a ground by gas tank. Put all back to together and started but left red light stays on and it lost its low end throttle response.
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post #4 of 22 (permalink) Old 06-26-2019, 10:47 PM Thread Starter
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I was not having any service light issues or performance issues before swapping new comp spring. I never fully removed the gas tank. To take valve cover off.
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post #5 of 22 (permalink) Old 06-26-2019, 11:51 PM
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Quote:
Originally Posted by Stauvo View Post
Good evening. I just saw your reply tonight.
I’m a 50 yr old dad whom had 86’ 250R and 89’ 250R in early my early 20’s and had fun tweaking them. My son and I bought this 08 450r and I admit I was not prepared for something with a ECM and sensors and may have big problems. The stator is not charging and also
I put a new battery in it. Rode it on a all day trail ride and ran great despite hard starts. Took all apart and replaced broken decompression spring. Also pulled out a old power commander that was only attached to a ground by gas tank. Put all back to together and started but left red light stays on and it lost its low end throttle response.
Ok..! F.I dash light remains ON is pointing to an DFI error..First... run a self diagnostic to check for error codes in the DFI system...
Orange wire in a black pouch..ground it to the frame...turn the key & count the (far left) dash light flashes...
See pictures below

Make sure the battery is fully charged before riding...12.8 volts standard...The ECU & sensors don't function if the battery voltage is below 12v...!
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post #6 of 22 (permalink) Old 06-27-2019, 01:29 AM Thread Starter
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Ok this sounds good. I will check my batteries since they have not been charging and study your photos to do the code check thing and report back when complete. Thank you for your time.
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post #7 of 22 (permalink) Old 06-27-2019, 09:08 PM Thread Starter
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Hi. I tested for codes and it shows a long flash followed by short flash for main throttle sensor sensor malfunction with open wire or short. Also in taking things apart we noticed the kill switch was unhooked so we removed it as well. I think it was hooked to these wires because if touched together it kills the engine.
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post #8 of 22 (permalink) Old 06-27-2019, 09:28 PM Thread Starter
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Hey hey. We found a severed yellow wire. Looks like some one striped insulation off it. Looks like old copper exposure. Goes to a plug on side of throttle body boot. Very tough spot to reach. When attached red light stays off.
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post #9 of 22 (permalink) Old 06-27-2019, 10:01 PM Thread Starter
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Ok. We have eliminated the code light and seems to run good while the yellow wire is taped together. I just gotta figure out how to pull that plug off to properly fix. Still not charging. Would that be a simple stator replacement? Thank you so much for Your help.
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post #10 of 22 (permalink) Old 06-28-2019, 12:25 AM
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Quote:
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Ok. We have eliminated the code light and seems to run good while the yellow wire is taped together. I just gotta figure out how to pull that plug off to properly fix. Still not charging. Would that be a simple stator replacement? Thank you so much for Your help.
Ok...The main throttle positioning sensor/TPS will need to be Checked/adjusted to be in range...0.58~0.62v DC @ throttle closed...3.7~4.1v DC @ throttle wide open...see picture below

You'll need an digital multimeter & this Sensor adapter 57001-1538 is best to check & adjust the TPS https://www.ebay.com/itm/Kawasaki-57...YAAOSwR1FZ5NlE

The yellow wire will need to solderd together...!!!
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