Quote Originally Posted by axa View Post
anyone with a infrared thermometer (and running bike of course) care to get there engine nice and hot and take some readings for me??
Im looking for the following in order to best guess the max CR i can go with.

- Ambient temperature (current temp)
- hottest temperature found on the engine/ where it was found

As i mention we got time as i have to ship these new parts back to have them replaced, so any help is appreciated.
0202141058-01.jpg

I have the 14mm TTO cylinder head temperature gauge (CHT) on my DF and also on my Ural. I see maximum temps of about 400 F on the DF and 425 F on the Ural on high speed () runs and long steep grades where the load on the engine is the greatest. These temps are measured under the spark plug at the head. As an aside the temp drops when either bike is idling at a stop light.

500 F is suppose to be a rule of thumb dangerous cylinder head temperature. I also have a infrared temp meter and the CHT is the highest temp place on my bikes.

http://www.ebay.com/itm/Trail-Tech-T...a6b575&vxp=mtr



IMG_2362.jpg
I get higher CHT on my Ural.