I have converted my 98 f3 to f4i gauges/fairings. I would like the temp to read accurately. I know you have to install the f4i sensor and that it is bigger than the f3 sensor. I know you have to bore/tap the hole to fit the f4i sensor. So the question I have are:

Where is the sensor located on the f3?
Dependent upon where it is located will tapping it cause me to have to take apart the engine due to metal shavings?
Will an f4 sensor work or are there any other sensors that will work with the f4i gauges?

Also looking on ebay ive found a white plastic looking thing listed as a temp sensor as well as a more metal looking sensor. any pics of what I actually need?

 

The sensor is located on the block by the carbs, on the right side where the
chock cable is located. You replace it with the 1999-2000 900RR temp sensor.
You'll only have to remove the old sensor and replace it with the 900rr one.
If you don't use WD-40, patience and care, you can break the F3 sensor off, while removing it. That's probably where you're getting the mistaken notion of tapping
being needed.

Ern

 

no ive read the at f4i sensor you have to tap for. Just read about the 900rr sensor though. Do i just need the sensor or anything else?

Also I read its the 98-99 sensor I need. could it be 98-00?

 

Duh! I'm an idiot! You are correct, 98-99 years for the 900 sensor.
I just bought a new one, when I did the conversion.
It was $39 at the dealership.

Ern

 

I believe this is it?
Number 8 in the diagram. Can someone confirm this? I'm considering doing a swap as well.
98 900rr Temp Sending Unit

 

yea thats the one. Thanks guys!