overheating

Hello all, First time posting here (although I've consulted the site many times scavenging for info). I have a 1971 CB175. Have got it up and running after a long time off the road...but am wondering about the heat generated. After a 30 minute ride, the engine is hot; to the point that the...

I've posted this once before but as there was no response I've concluded that I'm either extremely uninteresting, this has been answered before (I cannot find it), or I just chose a poor time to post and it was buried under other posts. I have 2 questions: 1. What do the different numbers on...