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An unconventional look at the world of moto

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Entries Tagged as 'Two-Stroke'

CanAm MX3

July 14th, 2008 · Comments Off on CanAm MX3 · Two-Stroke, Vintage

This article went up on the Canadian Design Resource blog today. It’s a little historical retrospective on the 1977 Can-Am MX3 250. The article notes the passing of Can-Am, as Bombardier moved away from recreational vehicles to transit equipment and later into aircraft manufacturing. In 1983, Bombardier licensed the brand and outsourced development and production […]

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Long live the two-stroke Part Deaux: FUD in the marketplace

July 12th, 2008 · Comments Off on Long live the two-stroke Part Deaux: FUD in the marketplace · Industry, Politics of Riding, Technology, Two-Stroke

Editor’s note: You may want to read Long live the two-stroke: Part 1 and FIM to put 2-strokes on even footing in 2010 for more background. Recently a vintage racing/CZ friend posted the following query here: Hey Terry, Correct me if I’m wrong because I’m not totally sure, but hasn’t Calif banned 2 stroke sales […]

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FIM to put two-strokes on even footing in 2010

July 10th, 2008 · 7 Comments · Industry, Racing, Technology, Two-Stroke

According to this Dec 21, 2007 press release (pdf) from the Federation Internationale de Motorcyclisme, the Permanent Bureau has decreed the following: 2) Motocross Classes: as of 2010, single cylinder engines will be used in MX1 and MX2 and multicylinder in MX3, whether 2 or 4-stroke (open concept). The cubic capacity will be 250cc in […]

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Long Live the two-stroke

June 25th, 2008 · 5 Comments · Industry, Racing, Technology, Two-Stroke

Michael Scott’s “In The Paddock” column in the new Cycle News, (pg 60, July 2, 2008) is all about the two-stroke motorcycle engine, its past, present, and future. Some interesting stuff there. Mostly Scott talks about road racing and the death of the 250 GP class, which DORNA has killed effective 2010. But he also […]

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Two-stroke championship video

May 16th, 2008 · Comments Off on Two-stroke championship video · Racing, Two-Stroke

Short video of Round 3 of the DEP British Two-stroke Championship. Pretty cool. This makes a hell of a lot more sense than the 4-stroke MX championships now that two-strokes have been all but outlawed from all national and international MX competition.

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Project Big-bore lives

January 14th, 2008 · 3 Comments · Two-Stroke, Vintage, Workbench

Got a call from old-school CZ builder Gary Davis today. A little over a year ago I visited Gary up at his home/shop in North Carolina. I left him several boxes that constituted my CZ380 motor. Back in the day Gary was known for his over-bored, reed-valved CZ motors and his inverted stinger expansion chambers. […]

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It’s a drain hole, Dummy

January 5th, 2008 · Comments Off on It’s a drain hole, Dummy · Two-Stroke, Vintage, Workbench

Turns out the hole in the bottom of the TM motor is supposed to be there. It’s a drain hole of some sort. Right there in the bottom of the motor. Whod’a thunk? Glad to hear that. Now it’s off to the post office.

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There’s a hole in my bucket

January 5th, 2008 · 1 Comment · Two-Stroke, Vintage, Workbench

I had a bit of a disappointment tonight as I was cleaning up the little Suzuki motor to ship off to the engine builder. Upon turning it upside down to clean the gunk I discovered a hole along the centerline of the engine cases. “Uh oh, this can’t be good.” It’s an odd little hole, […]

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