Help identifying busted part!

[brisbon]

So this apparently shows just how little I know about motorcycle engines. I own a diesel repair business, and I'm usually a little bit of a bull with my strenth whihc you gotta be anyway, but when your like that with delicate small gas engine this happens.

this is located on the very top of the rear cylinder head between the headbolts.

so what did i break, how much is it and where can I order one other than a dealer?

 

[brisbon]

and i dropped the fouled plug on the ground and broke it too!! ahh bad day :/ at least it isnt the summer...

 

[tuneport67ss]

Looks like the temp sensor for the ECM that mounts up on the head. Shouldnt be too much, but you never know with HD.

 

[TooFst]

Yea that would make sense cuz dosent the rear cylinder shut down if it gets too close to overheating?

 

[RT Performance]

it runs the rev limiter when it gets to hot.
looks like a temp sender also controls the fan

 

[fahren]

ENGINE TEMPERATURE SENSOR 4.34
GENERAL
See Figure 4-75. The Engine Temperature Sensor (ET Sensor),
located in the rear cylinder head, monitors the engine
temperature close to the combustion chamber. In addition to
aiding the ECM in monitoring the operation of the engine, it is
also used to warn the operator of potentially damaging temperatures
by causing the CHECK ENGINE lamp to blink during
operation.
REMOVAL
1WARNING
To protect against accidental start-up of vehicle, disconnect
the negative battery cable before proceeding. Inadequate
safety precautions could result in death or serious
injury. (48)
1. Disconnect negative battery cable.
2. Remove intake cover assembly. See 2.35 INTAKE
COVER ASSEMBLY.
3. Remove airbox. See 4.44 AIRBOX.
4. See Figure 4-76. Remove right upper tie bar fastener (2).
Rotate tie bar to provide access to sensor.
CAUTION
Do not pull on engine temperature sensor wiring. Excess
strain to sensor wiring will cause sensor damage.
5. Unplug 1-place ET Sensor connector (1) [90] above rear
cylinder head.
6. Slide rubber boot up ET sensor wire.
7. Remove sensor from rear cylinder head using Snap-on
socket M3503B.
Figure 4-75. Engine Temperature Sensor Location (rear
cylinder)
Figure 4-76. Engine Temperature Sensor Connector
Approximate Location [90]
b0801x4x
1. Engine temperature sensor connector [90]
(approximate location)
10557
1
2004 Buell Lightning: Fuel System 4-103
HOME
INSTALLATION
CAUTION
Do not pull on engine temperature sensor wiring. Excess
strain to sensor wiring will cause sensor damage.
1. See Figure 4-75. Screw sensor into rear cylinder head.
NOTE
In next step, make sure wire is in cutout portion (slot) of
socket to prevent damage.
2. Secure sensor with Snap-on socket M3503B. Tighten ET
sensor to 120-168
in-lbs
(13.6-19 Nm).
NOTE
Orient the rubber boot so the flat on the boot is towards the
left side of the motorcycle.
3. Push rubber boot down sensor wire towards cylinder
head until it seats in hole on top of ET sensor.
4. See Figure 4-76. Connect ET sensor 1-place connector
[90] to wiring harness.
5. Install right upper tie bar fastener (2). Tighten fastener to
25-27 ft-lbs (33.9-36.6 Nm).
6. Install airbox. See 4.44 AIRBOX.
7. Install intake cover assembly. See 2.35 INTAKE COVER
ASSEMBLY.
8. Connect negative battery cable.

 

[BuellPartsGuy]

ENGINE TEMP SENSOR - Y0605.K - $80.20

 

[Pockets]

Yaoooch...I'll be sure to be cautious around that one!

 

[fahren]

That's a spendy thermometer!

 

[brisbon]

shittt back ordered till febuary possibly march, parts obsolete its being replaced with a new one due to a manufacturing issue...,

 

[JOEL9]

chicago harley says they have them in stock, Y0605.K- $64.16. also surdyke harley Y0605.k- $66.47

 

[Thorivola]

try and find someone who can solder it for you, the thing is pretty basic. If you're anywhere around southern WI I could solder it for you, I've seen a number of these things beaten up and repaired on the prototype bikes.