Suzuki GT750 workshop rebuild We've departed from the magazine's series slightly and joined the rebuild on reassembly, mainly because this was a seven parter in print. We've honed it to four. Our bike is a
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Workshop: Steering head bearings
Makes notes before disconnecting loom… An average 1970s 250 weighs around 150 kilos and if we assume an approximate 50/50 weight distribution then the front steering races are coping with a 75kg load whenever the
Read moreWorkshop: Balancing carburettors
Adjusting carb throttles Assuming you run a Japanese four cylinder motor you will almost certainly have four carbs, one for each pot. When you open the throttle you need all four carbs to respond at
Read moreWorkshop: BSA pre-unit service notes
BSA A7/A10 service notes (pdf) BSA's 500cc parallel twin, the A7, was introduced in September 1946, though the initial design was laid down before 1939. It was a bit of a 'committee' engine — the
Read moreWorkshop: Decoking two stroke exhausts
Give your exhausts an overhaul… There are now no longer any hard and fast rules to decoking two-strokes and the changes in two-stroke oil technology since the 1970s means a one-size-fits-all approach is no longer
Read moreWorkshop: Honda CB750K2 overhaul: 1
1970 Honda CB750K2 Our bike is a CB750 K1 manufactured in 1970 for the American market and is number 28,208 off the production line that year, with production starting from frame number CB750 – 1044650.
Read moreWorkshop: Honda CB750K2 overhaul:2
Honda CB750 engine, awaiting overhaul Click on the image gallery for step-by-step images and captions. Image captions Picture one: To begin the stripdown I've removed the points cover from the right-hand side of the engine.
Read moreWorkshop: Honda CB750K2 overhaul: 4
Honda CB750K2 overhaul’s nearing the end… See the step-by-step instructions in the image gallery. Picture one: Last month I finished off the top end of the engine. Now I'm going to complete the motor before
Read moreWorkshop: Honda CB750K2 overhaul: 5
All done… See step-by-step images in the gallery. Image captions Picture one: The original wiring on this bike was in remarkably good condition, and I've had to do only a little cleaning up and retaping
Read moreWorkshop: Yamaha XS650 overhaul: 2
Yamaha 650 XS1 Our Yamaha engine wasn’t in bad overall condition, as we discovered in part one. A full strip of the engine revealed no major problems, only the front camchain slipper blade being in
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