The speedo on my '83 240 has little dots indicating the "redline". If you look closely near the 25mph mark you'll see a little square dot. Then again at the 40mph mark you'll see 2 dots and then at the 65mph mark you'll see 3 dots. 1 dot= shift from 1st to 2nd...2 dots=second to 3rd and so on.

Never revved mine to the max. I like my engine too much.

Cheers,

Bill