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Thread: gear Position Sensor

Created on: 01/20/16 12:12 PM

Replies: 5

danfzx14


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Location: NH

Joined: 02/02/11

Posts: 120

Gear Position Sensor
01/20/16 12:12 PM

Do these go bad with time? Mine started acting flaky toward the tail end of this past season. At times it would indicate a gear or two higher or lower on the display than what I was actually in. I removed it to see if it was dirty and much to my surprise it was very clean. I checked the electrical connections and they were tight and clean. Ronayers.com is getting $113.12 for them so I would like to make sure before a buy a new one that it makes sense to replace it. Thanks!


* Last updated by: danfzx14 on 1/20/2016 @ 12:13 PM *



08 Midnight Sapphire Blue ZX14, Ceramic Coated Brocks CT MEG, PC III USB w/Brocks Street Map, Flies Out/Blocked PAIR, Penske 8983 Shock, Penske Fork Piston Kit w/GMD Computrak Springs, Scotts Rotary Steering Damper, Heal Tech Quick Shifter, Spiegler Stainless Steel Brake/Clutch Lines (Translucent Blue w/Red Banjos) All w/Speed Bleeders, EBC HH Pads Front & Rear, Pyramid Carbon Fiber Hugger, Bestem Carbon Fiber Front Fender, Zero Gravity Double Bubble Dark Smoke Shield, Metzeler Sportec M7RR, Battery Tender BTL14A240C Lithium Battery, Stock Air Filter w/Steel Screen Removed, Competition Werkes Slash Cut Aluminum Footpegs, Moto Fab Fender Eliminator, Supply N Demand Frame Sliders, Tank Bra, Pit Bull Swingarm Spools, Gold Plug Magnetic Oil Drain Plug, Moto Bolts (Kawasaki/Black & Chrome) License Plate Bolts, Moto Caps (Kawasaki/Black & Chrome) Valve Stem Covers

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Hub


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Joined: 02/05/09

Posts: 13719

RE: gear Position Sensor
01/20/16 1:31 PM

Codes 6 if red/grn wire is bad.
Codes N if light/grn wire is bad.
Codes 6 if whole unit fails.
No codes, no faulty unit.

With one hand, make a peace sign. Place other hand with index finger in between the V sign. Notice the wear pattern of your middle finger hitting your index finger you shift down. Notice your index hitting the other index is shift up, look at that gap hanging as the pin is moved in that slot... remember how it's designed when you looked at it? Did you look for elongation, slots tweaked, pin bent or moved down its staking point?

1. Either: you are not making clean shifts, the gear pin hangs up, you shift again and it goes in place, right?
2. Or: the pin and slot are so worn, the shifter pin and tangs made a concave shape at the pin's shaft and tang, the throw is no longer hitting an edge of the pin to the tang's straight fork sort of speak is that floppy finger in the V.

3. I go back 8 years, no red flag about gps sensors going bad.
4. I wait for what's his name with over 100k miles on the bike to say his gps finally failed.

I would like to make sure before a buy a new one that it makes sense to replace it.

a. The beauty about a sensor is if it fails it codes within seconds.
b. The internal tranny parts would have to be so sloppy, you'd complain about missed shifts.
c. The occurrence would have to be permanent, constant, every time, is the new number for that gear.
d. Is it? No. Then it's back to changing the oil, new boots, see if you are in gear by stabbing the shifter, [no clutch pull], concentrate on the shifting.



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danfzx14


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Location: NH

Joined: 02/02/11

Posts: 120

RE: gear Position Sensor
01/20/16 2:09 PM

I just reviewed my notes on this problem and I need to correct what I stated. What typically happens is the display indicates one gear higher than I am actually in once I get past 2nd gear, meaning if I am in 3rd gear it shows 4th gear on the indicator.

I do not believe my shifting is sloppy or has been sloppy. Been doing this shifting thing since I was 5 years old & now I'm 52. The bike is in the correct gear when I shift, so I am not " shifting again" to get it to go in place.

I am not sure what " pin and slot" you are referring to as being worn. I will have to refer to my service manual later tonight to see what you actually mean. Can I assume these parts you refer to are replaceable?

I had been told that it "sounded like my gear position sensor had gotten sticky or is even failing" for whatever that's worth.

I have never dealt with a gear position sensor before hence why I am seeking out some assistance. Good time to work these things out in the down season up here in the land of the cold and snow.



08 Midnight Sapphire Blue ZX14, Ceramic Coated Brocks CT MEG, PC III USB w/Brocks Street Map, Flies Out/Blocked PAIR, Penske 8983 Shock, Penske Fork Piston Kit w/GMD Computrak Springs, Scotts Rotary Steering Damper, Heal Tech Quick Shifter, Spiegler Stainless Steel Brake/Clutch Lines (Translucent Blue w/Red Banjos) All w/Speed Bleeders, EBC HH Pads Front & Rear, Pyramid Carbon Fiber Hugger, Bestem Carbon Fiber Front Fender, Zero Gravity Double Bubble Dark Smoke Shield, Metzeler Sportec M7RR, Battery Tender BTL14A240C Lithium Battery, Stock Air Filter w/Steel Screen Removed, Competition Werkes Slash Cut Aluminum Footpegs, Moto Fab Fender Eliminator, Supply N Demand Frame Sliders, Tank Bra, Pit Bull Swingarm Spools, Gold Plug Magnetic Oil Drain Plug, Moto Bolts (Kawasaki/Black & Chrome) License Plate Bolts, Moto Caps (Kawasaki/Black & Chrome) Valve Stem Covers

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Hub


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Joined: 02/05/09

Posts: 13719

RE: gear Position Sensor
01/20/16 7:06 PM

Book (16-125) shows a pin and spring. See if those two screws are loose that remove it. If tight, remove with a japanese phillips, not a #2 phillips. Toolkit may have the right bit. Here I'm thinking it's pin and fork. This is dowel pin into GPS's hole. Say the GPS plate is now oval ( 0 ) in its slot. Not tight (0) so it rotates firm outside the housing and lines up inside.

WD40 would probably free it up or make it rotate smoother?



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danfzx14


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Location: NH

Joined: 02/02/11

Posts: 120

RE: gear Position Sensor
02/02/16 1:55 PM

Hub I took a look at this during the past weekend & I could be wrong but I believe we are talking about two different parts. I think you're talking about the gear position switch. I found what you referenced to in the service manual. The part I am referring to is the gear position sensor #13151-0031 SWITCH-COMP,NEUTRAL. This is the part I think may be flaky. Let me know if this makes sense?? Thanks!

Link to microfiche below:
http://www.ronayers.com/oemparts/p/kawasaki/13151-0031/switch-comp-neutral


* Last updated by: danfzx14 on 2/2/2016 @ 2:04 PM *



08 Midnight Sapphire Blue ZX14, Ceramic Coated Brocks CT MEG, PC III USB w/Brocks Street Map, Flies Out/Blocked PAIR, Penske 8983 Shock, Penske Fork Piston Kit w/GMD Computrak Springs, Scotts Rotary Steering Damper, Heal Tech Quick Shifter, Spiegler Stainless Steel Brake/Clutch Lines (Translucent Blue w/Red Banjos) All w/Speed Bleeders, EBC HH Pads Front & Rear, Pyramid Carbon Fiber Hugger, Bestem Carbon Fiber Front Fender, Zero Gravity Double Bubble Dark Smoke Shield, Metzeler Sportec M7RR, Battery Tender BTL14A240C Lithium Battery, Stock Air Filter w/Steel Screen Removed, Competition Werkes Slash Cut Aluminum Footpegs, Moto Fab Fender Eliminator, Supply N Demand Frame Sliders, Tank Bra, Pit Bull Swingarm Spools, Gold Plug Magnetic Oil Drain Plug, Moto Bolts (Kawasaki/Black & Chrome) License Plate Bolts, Moto Caps (Kawasaki/Black & Chrome) Valve Stem Covers

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Hub


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Joined: 02/05/09

Posts: 13719

RE: gear Position Sensor
02/02/16 5:44 PM

That's the part I'm talking about. The 13151 tackles N-GPS-Oil switch. So 4 wires at the connector is:
1. N-light
2. Oil-light
3. GPS
4. Dashboard gear number display window

Test:
A. Key on - roll bike and slip into 1st gear = Window reads?
B. key on - spin the back wheel really fast and at the same time pull the shifter up to 2nd.
C. Key on - roll back wheel back and forth, select 2-3-4-5-6 and = Window reads?
D. Key on - statically moving the internal switch, does the number phase in or phase out as if riding?

Yes = Change part.
No = Not the switch.



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