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Converting Miller Generator to Lucas Wiring
To use a modern voltage regulator the Miller generator must be rewired so it works like a Lucas generator.Click on Link below to down load a printable PDF millerconversion
Rod Coates was pushing for a factory dirt track racer before the T120RT
Rod Coates was pushing for a factory built 500 racer before the AMA allowed 750cc engines to run professional dirt track. The T120RT was a skunk works operation that eventually cost him his job. Click on the link below to view letter by Rod Coates to Tricor general manager, Earl Miller. Rod Coates factory dirt […]
Triumph T120RT
Click on link to PDF below for more information on the T120RT: Triumph T120RT – web
Valve Seat Information
Click on link below to download a PDF file containing installing valve seat information: 650-750head
Amal – A comprehensive look
AMAL Concentric Carburetors (updated to include Premiers) I gratefully accept comments, and criticism. They can be sent to johntioc at aol.com. THE BASICS: Get comfortable, this will take time to read: It’s the needle jet stoopid: (coined by Don Hutchinson who co-hosted many of my Tech Sessions.) If there is one thing you come away […]
Push Rod Tubes
Triumph 650 and 750 Twin Push Rod Tube Crush From the first day I read the phrase in an book by Mike Hailwood, “Dropping a piston circlip into the crankcase is a confounded nuisance” I knew exactly what it meant and how it applied to me. Let me explain: There are just some things in […]
Oil Leak – Crankcase not even
Checking crankcase mouth for step. In the technical world we live in today imperfections are rare. In the day when these bikes were made they were common place. One that catches many mechanics out is a step between the two case halves. Sometime in the 1970’s someone at the factory decided that could speed things […]
Triumph Crankshaft
http://www.tioc.org/britbike/crankshaftart.pdf
Changing Triumph 650 4-Speed to a 5-Speed
Update To A 5-Speed Gearbox There have been many iterations of the Triumph 5-Speed transmission. Not all 5-Speeds gear sets are the same. The early gear sets first offered in the 1971 model year turned out to be problematic. If used hard they would break. This wasn’t discovered during testing, but only after the bikes […]
Engines and Heat by Kevin Cameron
The familiar motorcycle engine is powered by heat, so a great many of its most difficult problems concern the management of heat and the results of high temperatures. I like to construct word pictures for myself of what happens in engines, step by step. The reason I like to do this is that, unless I […]