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TAG : how-to

timing covers

Solving Wet-Sumping Issues on Norton Commandos

A common problem with vintage British bikes, due to their dry crankcases and remote oil tanks, is wet sumping. Wet sumping is when the oil from the remote oil tank finds its way into the sump of the engine. In this How-To we’re going to show you two methods of curing the problem as it exists ...

1977 Suzuki GS750 Charging System Upgrade

Charging systems improved markedly in the 1970s, both in terms of output and component quality. But age isn't always kind, and 40 years later, many of those systems are experiencing their share of issues. Burnt or corroded contacts in the charging system wiring are something of a silent killer, ...

Installing an Alton Norton Commando Electric Starter

The Norton Commando is one of the most popular classic motorcycles ever made — and they made lots of them, an estimated 60,000 over an almost 10-year life span. Endowed with excellent handling and a torquey, train-pulling twin, they were the Superbike of their day.Although electric starting ...

1968 Triumph Bonneville Voltage Regulator Upgrade

Making sure your charging system is working to full capacity is important on a number of fronts. To begin with, there's the simple issue of generating enough voltage to keep your lights bright. This is particularly important on vintage bikes, which generally have low-capacity charging systems ...

Honda CB450 Starter Overhaul

As reliable as vintage Japanese electrical hardware may be, everything has a service life, and that includes the starter motor on our subject 1970 Honda CB450K4, which had been displaying a tendency to drag and otherwise turn slowly making the CB450 somewhat hard to start.New starters for the ...

Installing an Electronic Ignition on a 1973 BMW R75/5

We appreciate that many BMW owners are perfectly satisfied with their stock breaker points ignition system, but we also think that upgrading to electronic ignition is desirable if you ride your old airhead regularly. For one, the stock points on the /5 are hard to adjust. Camshaft actuated, ...

Replace Honda CB450 Swingarm Bushings

Honda CB450 swingarm bushings have a reputation for wearing out prematurely. Early CB450s like our subject 1970 CB450K4 used metallic bushings, while later ones apparently switched to plastic, a material more than a few manufacturers embraced for ease of installation. Whether early or late, ...

Replace Norton Commando 850 Clutch Plates

If you’re actually riding your old Norton Commando 850 — and we hope you are, because they’re one of the great bikes of the ’70s — chances are good that at some point you’ll have to replace the clutch plates. The original setup used five alternating bronze friction plates keyed to ...

Honda Redux

A curiously grinning Shane Powers with the 1970 Honda CB350 K2 he bought for the princely sum of $94 at the 2016 Barber Vintage Festival. Some would say he paid too much. Photos by Richard Backus.Apparently, we have a thing for Honda CB350 twins. In 2016, we took a tired 1970 CB350 K2, stripped ...

Rebuild Norton Commando Roadholder Forks

Top to bottom: new fork tube and components; pitted fork tube and old bushings and seal, fork spring and damper assembly.Photo by Motorcycle Classics staff.Fork oil is not supposed to be gray, but this kind of contamination is pretty common.Photo by the Motorcycle Classics staff.Positioned as ...

Motorcycle Classics Magazine

Featuring the most brilliant, unusual and popular motorcycles ever made!