How hot should it get?

[Greebo]

I agree with the over cooling comment. According to a specialist oil blender I used to know it's definitely not the colder the better, 90 to 110 mineral, 90 to 130 with some synthetics is the range you want it to be in.

Personally I wouldn't fit a cooler without confirming one was required, and even then I'd use a thermostat.

I monitored the temps on my monkeybike, it can exceed 120 in extreme circumstances like sitting on traffic after running flat out on a 27 degree day, but it runs at 85 in normal conditions. (I'm not sure why I never monitored it on my 550, but I suspect it runs cooler)

# So the Motul 10w50 semi synth' will cover it all..
We certainly don't want these air cooled engines over heating at all, especially those who run them mainly in the summer months on fine hot-ish days.
Todays Temp' topping 26 degrees perfect biking weather, but not good for the engine if you are stuck in traffic on a CB750 ,even with an oil cooler fitted, unless you have got the right oil in it .

PS... I am really p*ssed off right now, the weather has come good at last,but just had a op' on my right hand on Saturday for "carpel tunnel" so wont be riding for a few weeks.. ..

Note: For those who mostly ride bikes with clip-ons, on longish runs, beware, this is what caused my hand problem...

[MCTID]

I ran a VFR 800 for about six months.......50 odd miles each day commuting into London. Absolutely fantastic bike but I constantly had a pain in my right elbow and in the end had to swap to a ZXR1200S Tourer with higher bars.

I was complaining of the crippling pain in my elbow most nights and SWMBO said that I was a fool to persevere with the VFR.

Problem went away within a couple of weeks......a great pity but your health and well being is more important.