Triumph t120v camplate plunger thread help!!!! 57-4400

[hardleyableson1996]

So I need some advice got a set of t120v cases and want to install a camplate plunger and wanted to know what size drill to use and tap size etc...cant find any info on the actual "process'' just people talking about it can be done etc etc..

[TriNortchopz]

Hey HA96,
Not sure if you found what you needed; I searched for a few hours (okay, lots of technical reading during that time), but only found a thread on a different site, with a post by the guy who made the tool for the plunger conversion; this link to the Greater Atlanta British Motorcycle Association is referenced:
https://gabma.us/tech-articles/ I can't access the leaf spring conversion technical pdf article, but see it listed - perhaps you can get there.
Here is the thread I found it and additional info in: http://www.jockeyjournal.com/forum/s...ring&showall=1
There is also info for the upgraded leaf spring if you want to do that upgrade only.

Here's a thread that shows the jig he built and the tools to drill, ream and thread the hole: http://www.triumphrat.net/vintage-te...unger-mod.html

and here: http://www.britbike.com/forums/ubbth...412#Post320412

And since your post was about the 5 speed gearbox, it lead me to some great reading, including this technical article in Vintage Bike Magazine, to upgrade from a 4 speed to a 5 speed, "Changing Triumph 650 4-Speed to a 5-Speed": http://vintagebikemagazine.com/techn...-transmission/

and here, Triumph Transmission Conversions: https://www.scribd.com/doc/23638645/5speed






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