Two Stroke Racelab

Good team equals good results. Enjoy.

Thanks to Antonis(GR) for sharing a few photos of his current project. He had some issues with a partially working PGM unit that is now repaired. I bet he is happy riding at the beautiful Karpathos island right now... Cheers!

Big thanks to Evans(US), for letting me share a photo of his Rz350 along with his animating description of a Tennessee road.  Hi Nick, Here is a picture of me on my 84 RZ350 (Kenny Roberts Edition) at Deal's Gap/ Tail of the Dragon. This road boasts 318 curves in 11 miles and is located in North Carolina/ Tennessee. I go each year and take both my RZ and '72 Kawasaki H2 Triple. If you use this picture on your website, please give credit to killboy.com as he photographs on this stretch daily during good weather months. There's a large annual 2 stroke meet that happens each Spring at Deal's Gap with over 150 2 stroke street bikes. Hoping you can make it one year! The PV controller works great! I have not experimented past the 31K curve which I really like. I will eventually try some of the other programmable curves. Thank you again for your service. Evans

It helps a bit to have the crankcases of your two stroke engine reworked. Removing castings burrs and making some radius on sharp edges is the general consensus. Other than the above, it helps a lot to temporarily install the crankshaft and reed valve in place, as these parts will reveal some more work needed. It is not rocket science but needs a bit of experience with a few different crankcases so you can have a broader and more complete view of what needs to be done. Key words are "flow" and "direction" . These are the most important aspects when reworking a crankcase. Removing rough casting burrs will aid flow, reshaping the paths of flow will aid for better cylinder filling. While you are there, matching the mating surfaces among crankcase halves and barrels, is a good idea. Here are a couple pics of pre-post state of a Nsr250 Mc21/28 crankcase that I just finished working on. First photo is where the LH cylinder bolts on. I may have exaggerated a li...

Made a bunch of Battery Eliminators in red color, all are already gone but I'm going to make some more soon.  Battery Eliminator is essentially a low ESR computer grade capacitor that takes the place of a traditional battery. Highly recommended for track bikes and available through the online store. 

Quite busy for the last few days at the racelab, repairing and modifying cdi and ypvs control units for Bernd(TH), George (GR), Marcus(UK), Andrea (IT) and Keith (NZ). Thanks to all people for trusting my services.

...nice titanium exhausts. Photo courtesy of   tozecanaveira.com .