® The importance of maintenance

This is a burnt exhaust valve from a GL1000. This happens from lack of valve adjustment. This is just one of the many classic evidences of neglect. Without frequent attention, Honda valve recede into the cylinder head. In a short time, the clearance disappears and with most of its cooling path gone, the valve begins to severely overheat and will soon disintegrate.

Got a CBX into the shop that was running on five cylinders. The dead one read 0 psi compression. This was why. Classic pie slice out of that valve. Same scenario as the GL1000 valve. Lost clearance brings less time to cool, and eventually the valve caves in on itself.


I had a Honda in the shop a few years ago that had no oil in the engine (and what little there was looked like black tar) and evidenced many other signs of having had little to no maintenance over its 32,000 miles more than 40-year existence. Can you say, "rough"? Totally neglected.

I suspect most are aware that vintage bikes require more maintenance than do newer models. But you may not realize that they do so by design, not simply due to age. Take a look at your 1970s Honda owner's booklet. Late 60s to early 70s maintenance intervals were just 3,000 miles apart, and 80s bikes only double that. Yup. A little shocking in the present powersports climate of 25,000-mile and longer valve adjustments, don't you think?

But it's real, and it's critical. And what I told this customer who seemed very surprised when hearing the estimate, was this: "Buddy, think of it this way. The money you saved over those years not doing necessary maintenance you now get to spend all at once." It's almost vehicular Karma. But whatever you label it, it's not any way to treat a motorcycle. And this customer was looking at spending a little more than the equivalent of all those years. And you what else? He blamed me. He acted like the victim. Came and got his bike in a trailer and hauled it away.

I'm afraid many riders view maintenance as something performed only when something goes wrong. Maintenance by crisis, in other words. Perhaps we have been lulled into this complacency by the absence of the kinds of troubles cars and motorcycles used to give a couple generations ago; their dramatically decreased incidents of breakdown. Their utter reliability. To the point we have learned to treat vehicles as disposable. They virtually are, you know. Use 'em til they start costing you and replace 'em. Unfortunately, however true this may be for today's cars, it just doesn't work for 1970s and 1980s motorcycles.

I didn't start writing this article thinking of Robert Pirsig but now suddenly I am remembering him and his maintenance as meditative catharsis ethos. As a lifelong mechanic I have a strong empathy for something like that philosophy, but I would rather instead call it taking responsibility for the reality of entropy; heading off at the pass problems that will surely come if they are not anticipated. Why the word "preventative" is often used when describing necessary maintenance.

While maintenance as an ethos was common among riders of the 60s and 70s and 80s, we of the current era must work at it; be proactive and intentional; make more of an effort in this day in which the maintenance ethic has, clearly, been lost.


Last updated March 2026
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