Hi....i have a 97 electra glide and right out of no where the rpms r starting to raise way up and wont come back down till i pull over and shut it off.....i seems to be happening more frequent feel like i proly should ride till i figure outthe problem.......any input would be muchly appreciated

 

sounds like it could be the temp sensor in the front head .... as they go bad they can make the rpms raise

 

You didn’t mention if you have EFI or carb. If it is EFi, x2 on the temp sensor. Part number is 32446-95. Price is approx $100 usd.

 

Most likely ETS, although I had that happen, and mine was a faulty Idle Speed Control motor.

 

You have a 1997 electra glide of unknown mileage and it is unknown if you have any items that are different from stock.
If you have a fuel injected bike then it has Magneti Marelli fuel injection.
That fuel injection system has an engine temperature sensor on front cylinder head.
Located deep in center of front cylinder head.
When the sensor fails the ECM (computer) gets wrong information and sends signals that flip/flop.
That confuses computer and makes it think it is hot and then cold.
The symptom is a run away throttle.
You can remove sensor and test it if you like.
Not a whole lot of tech to sensor as it only has two wires.
If you are on a trip then you could disconnect the idle control plug just behind the air box plate and that would disconnect the idle control motor.
BUT that would require you to hold throttle for start-up and warm-up.
Part is 32446-95a about $100 USA dollars.
You can address issue yourself with a deep socket, extension and basically minimal tools.
We are taking an educated guess here based on minimal information provided but again if the bike is fuel injected then the temp sensor is a known failed part with when that specific symptom is expressed.
Below is a link to a parts finder in order for you to better understand.
http://partsfinder.onlinemicrofiche.com/ronnies/showmodel.asp?make=hdmc

 

is your 97 fuel injected or carb?

 

Sorry i failed to include a few crucial details......EFI yes and it has about 90 000 kms

 

Everything else is stock i believe

 

Follow im’s suggestion. From reading other threads about this MM EFI system, I’ve learned he’s usually got a pretty fair idea of how to fix it.

 

being EFI start with the temp sensor in the front head ... I've replaced a couple of them on my 1996