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TAG : how-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 ...

Rebuild Ducati Mikuni BDST Flat Slide Carburetors

  This How-To might seem a little out of sync with our mission, focusing as it does on a 1992 Ducati 750SS. The name of the magazine is Motorcycle Classics, we hear you say, so isn’t 1992 too new?Believe it or not, it’s been 26 years since Ducati introduced the 750SS for the 1991 year, ...

Rebuild BMW R75/5 Bing CV Carburetors

  Bing constant velocity carburetors as used on BMW R75/5s and up are wonderful devices, generally trouble free and long wearing. Yet overhauls are still occasionally necessary, as we found with our subject 1973 BMW R75/5. Suffering from deteriorated jet and throttle shaft O-rings, the carbs ...

BMW /5 Charging System Upgrade

 As good as BMW’s classic /5 series is, there’s always room for improvement. One thing old /5s — and just about every airhead from 1970-1994 — can really benefit from is a charging system upgrade. While the stock system basically works fine, it can come up short in voltage delivery, ...

Adjusting 1977 Suzuki GS750 Valves

 Suzuki’s 1977-1983 2-valve 4-cylinder GS series engine was one of the best. Whether in 550cc, 650cc, 750cc, 850cc or 1,000cc guise, these air-cooled twin-cam fours were praised when new, and over the years they’ve proven themselves to be remarkably robust, able to withstand gross ...

Rebuild a Yamaha Autolube Oil Pump

As a rule, we try to focus our How-Tos on repairs we think the weekend mechanic can aspire to, so we’ll kick this one off with a qualifying statement: Rebuilding a Yamaha Autolube oil pump requires more than average care and attention.Our factory Yamaha manual specifically says of the pump, ...

Replace 1970 Honda CB350 Fork Seals

 The forks shown here are off our 1970 Honda CB350 project bike, which, given the state of the rest of the bike, we knew needed new seals at the very least and more likely new fork tubes. Stripping them apart we learned two things: First, early series 1968-1971 CB350 forks are amongst the ...

Change a Motorcycle Tire

Changing tires isn’t a particularly fun or rewarding job, but like many chores, it’s a good one to know how to do when the occasion arises. Frankly, this issue’s How-To reminded us of how rusty we are at the job, rarely changing our own tires because A) it’s usually rolled into the cost ...

Replace Pre-Unit Royal Enfield Primary Chain

Always turning and pulling a load, the primary chain is yet another oft-ignored motorcycle maintenance item. Fortunately, they’re usually quite robust, and outside of regular tension adjustment they typically require little attention.Hidden from view as they are, it’s not surprising that ...

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