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Safe highway engine RPM range?

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rij1

Safe highway engine RPM range?

I'm wondering what is a safe cruising rpm range on the freeway is for my engine. I'm talking about riding for hours at a time. I typicly keep mine around 5,000. I think that's around 65 mph.

My Bike Information
1982 Honda DOHC CB750F Supersport
4-1 Exhaust with baffle
Stock intake air box
Slow-speed jet #35
Primary main jet #68
Secondary main jet #105
Ventura, California

Black 750K8

Re: Safe highway engine RPM range?

These bikes love to rev. and were built for it. Most people use to cars or Harleys lug them down to much. Your bike will run all day and night at 6-7 grand. I keep mine about 1 grand below red line all day with no problems for the 40,000 I put on it and the valve cover has never been off. Keep the oil fresh and toped off at all times. I go 3K on my oil and filter. Keep your tuneup up to date and it will not let you down. Try to stay out of stop and go traffic as much as you can.

free2ride

Re: Safe highway engine RPM range?

In reply to this post by rij1

I've been running at 5,500-6,000. cruises just fine. which is [as Mr Black says] may be a bit low as I've been told they do like to run higher.

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shinyribs

Re: Safe highway engine RPM range?

Administrator

My sohc cruises 75 MPH at about 6,000 or a little over. Been doing it for about 15-16 k miles like that. The bike had 36 k miles on it when I got it. Doesn't seem to hurt it one bit and I get about 42 MPG doing it.

Let her eat, she loves it!