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Showing posts from May, 2015

Handmade Handlebars for the Tz125

A few years back, I made a post on diy clip on bars that you can find in the below link
2t-racelab.com - diy clip on bars

Today I fabricated another set of handlebars for my new toy, a Tz125 4jt bike. So, I thought of sharing a few more pics from the process.
First thing, you need an aluminum tube that has an outside diameter of 22mm. Cut the tube according to your needs e.g for the Tz125 you need two pieces that measure 24cm in length.
 This time I used acetal to make the end plugs on the lathe.
 Nothing fancy here, just common lathe operations like facing, turning and drilling.
 I don't own a ball attachment, so I used the compound to cut a taper. Looks fine by me!
 And here is the end result.
Now back to the little Tz bike to replace the old clip on bar...
 ...with the new one.
Have fun & keep the Two Strokes alive!

Suzuki Rgv250 & Aprilia Rs250, Leak Down Tester kits, for sale.

Leak Down tester kits for the Suzuki Rgv250 and Aprilia Rs250 bikes can now be purchased via my online store.
The leak-down tester is an essential tool for any high performance two stroke engine. This kit is installed in place of your carburetor and by pressurizing the engine cases you can check for any air leakage due to worn mating surfaces, erratic torque values due to aged parts, worn crankshaft seals etc. It is a necessary evil that it will help prevent catastrophic damage to your engine and keep performance up. A very valuable tool for a two stroke engine, handmade with care. 


Directions of use:  Testing can take place after a newly assembled engine to verify that everything is leak free, on a bike you just bought and you need to check crank seals condition etc. Place the tool in the carb manifold, seal the cylinder head with a normal spark plug and seal the exhaust flange with the included CNC exhaust blank plug. Pump the engine up to 5PSI and wait for 5 minutes. If there is no…

YPVS Controller Repair - Service

It's been a while since I last posted anything related to YPVS boxes. So here are a couple photos of YPVS controllers, a Rz500 YPVS unit for Spencer(UK) and a Tzr250 2MA unit for Steve(UK). Both controllers were repaired and then modified.

JHA PGM CI550D NK4D for Honda Rs250 NXA

I repaired another one bizarre PGM unit that belongs to Adriano(IT) and I think it deserves a couple photos in this blog. It seems to be a kit part for the later Rs250 NXA models.



New Toy, Yamaha Tz125 4JT

This is the new toy that will have some care and attention soon. It's a Yamaha Tz125 4JT 1994 model that I bought from a local racer a couple weeks back.

Even though it doesn't look that great, it's not in a bad shape at all and seems to be complete.

So, I suppose there will be a lot new posts with handmade parts, restoration photos etc.