Just picked up my 08 FXDSE two weeks ago and have about 1200 miles on it. My question is how hot should it run. Mine compared to co-workers Harleys is much hoter. Their engine you can lay your hand on and mine you can barley touch. "Riding on 60 degree air temp." I plan to purchase oil temp gauge when I take it in for 1k service. Talked to dealer and they said it is fine. Does anyone know when some aftermarket exchaust and tuners will be available? So far I love the bike. I got the blue one. It does have two small oil leaks already, nothing major just the sending unit on the right side case and where the wires come out of the left side case. Niether one leaks much yet, just enough to see the dust collect to it. I quess you could say it is justhorse sweat. Any info would be nice. New to the forum.

 

Good for you Lenny! I have seen 230 degrees at the most with this 110 SERK. At that point, the engine is plenty hot so I don't think that is too bad. "Laying a hand" on this engine when it is totally heated up is a very short duration inspection as with most any air cooled engine. Maybe theirs were not totally heated up? Not only that - you will see less running heat as the engine gets broken in - about 5000 - 6000 miles!

 

The "birth certificate" they ran on my '08 SERK says the operating range of the engine temp is 230 to 300F.
Mine was reading 261F at the proper testing sequence.


Birth Certificate8/17/2007 1:34:34 PM[/align]
[align=left][/align]



Source
Module
Description
Value
Min
Max
Limit Status

Live
ECM
Engine Speed
1051 RPM
850
1250
Value OK

Live
ECM
Spark Advance Front
14.0 Degrees
10.0
15.0
Value OK

Live
ECM
Spark Advance Rear
14.5 Degrees
10.0
15.0
Value OK

Live
ECM
Battery Voltage
14.30 Volts
13.00
15.00
Value OK

Live
ECM
Clutch Lever Switch State
Lever Released


Not Applicable

Live
ECM
Engine Temperature
261 F
230
300
Value OK

Live
ECM
Engine Temperature Sensor
1.19 Volts
0.60
1.40
Value OK

Live
ECM
Front Adaptive Fuel Factor
109.4 %


Not Applicable

Live
ECM
Front Closed Loop Integrator
99.2 %


Not Applicable

Live
ECM
Throttle Position
5.0 %
0.0
0.0
Value High

Live
ECM
Front Oxygen Sensor
0.86 Volts


Not Applicable

Live
ECM
Intake Air Temperature
138.20 F


Not Applicable

Live
ECM
Intake Air Temperature Sensor
1.93 Volts


Not Applicable

Live
ECM
Idle Set Speed
1000 RPM
850
1250
Value OK

Live
ECM
Manifold Absolute Pressure
10.12 In. Hg


Not Applicable

Live
ECM
Injector Time Front
3.70 ms
2.00
4.50
Value OK

Live
ECM
Injector Time Rear
3.31 ms
2.00
4.50
Value OK

Live
ECM
Manifold Absolute Pressure Sensor
2.83 Volts


Not Applicable

Live
ECM
Rear Adaptive Fuel Factor
109.4 %


Not Applicable

Live
ECM
Rear Oxygen Sensor
0.90 Volts


Not Applicable

Live
ECM
Run Mode Flag
Run


Not Applicable

Live
ECM
Rear Closed Loop Integrator
98.4 %


Not Applicable

Live
ECM
Vehicle Speed
0.00 MPH


Not Applicable

Live
ECM
Brake
Released


Not Applicable

Live
ECM
Throttle Motor Duty Cycle
94.92 %


Not Applicable

Live
ECM
Jiffy Stand Down
Up


Not Applicable

Live
ECM
Throttle Position Sensor 1
0.68 Volts


Not Applicable

Live
ECM
Rear Spark Knock Retard
0.00 Degrees


Not Applicable

Live
ECM
ECM Neutral Switch Input
On


Not Applicable

Live
ECM
Twistgrip Sensor 2
3.98 Volts


Not Applicable

Live
ECM
BPW Front Cylinder
3.70 ms


Not Applicable

Live
ECM
Twistgrip Sensor 1
1.09 Volts


Not Applicable

Live
ECM
Twistgrip Position
0.00 %


Not Applicable

Live
ECM
RollOff
Inactive


Not Applicable

Live
ECM
Throttle Position Sensor 2
4.34 %


Not Applicable

Live
ECM
Front O2
Rich


Not Applicable

Live
ECM
Front Spark Knock Retard
0.00 Degrees


Not Applicable

Live
ECM
Engine Crank Time
0.00 Secs


Not Applicable

Live
ECM
BPW Rear Cylinder
3.31 ms


Not Applicable[/align]

 

Mine ran much warmer before I put the SERT and pipes on, that seemed to help quite a bit. From what I have read it is not uncommon to be in the 230 degree range.

 

I actually had 265 on my oil temp gauge before installing an oil cooler and adjusting the SERT mixture. Now I get 210.