Join Date: Jul 2008
Location: GALWAY, , IRELAND
Overheating and speedometer query
I have a 06 GT with 17,000 miles. Brilliant machine but yesterday I had a few problems.
Went for a 100 mile run in calm, 80 degree weather on open road. On finding a quiet stretch of road, I decided to "turn up the wick" and no matter how hard I tried it would not cross 120mph. (The bike was capable of 150mph last month). I gave up and just cruised the remaining 20 miles to town. 1 mile of filtering in 1st and 2nd gear together with a 1 minute stop at a traffic light resulted in the red warning light flashing and the temperature gauge blinking.
I immediately stopped and later checked the coolant level which was full.
I nervously rode home and noticed that the temperature gauge would only rise if i got caught up in traffic travelling below 20 mph.
This morning at home I decided to test the fan, so while on the centre stand, I started it up and warmed up the engine. At one point I revved the engine from 2,000 rpm to 4,500 rpm and the speedometer reading jumped to 15mph. I repeated this and the same thing happened. The fan came on but the temperature reading continued to rise. Afraid of possible engine damage I didnt wait for the red warning light and switched off.
I went for a spin this evening and the bike went to 135mph(more there but didnt want to tempt fate)
1. What caused this overheating?
2. Why did speedometer jump?
3. What happened my top speed?