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I just finished up a bore job on an old early 70’s R5 piston port 350 Yamaha. The pistons came from HVC Cycle in Nebraska. Give them a call if you ever need some old Vintage parts.



This set is one of the few 2-stroke Japanese cylinders which appears to have removable liners. I think I’ll have a set to repair and reline soon.

My thoughts came up about how to accurately measure piston sizes when doing a bore job. With all of the different suppliers and brands ...

http://www.youtube.com/watch?feature...&v=_pu0x6HoSdA

Features my 86 ATC250R, a couple Banshees, a custom built ATC500R, and another custom built Tecate 500 with a KX500 engine in it. About 8 minutes long, some pretty cool footage mostly of climbing but some jumping here and there too. Check it out! ...

What's your (And the companies) name?
Hi my name is Rob Earls & my company is RDZ Racing.

Where are you located at?
We are located in Michigan

What do you/your company do?
We specialize in high HP Yamaha banshee's & blasters.

How long have you/your company been in business?
We've been in business for 15 yrs.

Whats your history with the Powersports industry, how did you become interested in it?
I started racing in banshee's around 1995 & didn't like getting beat so i bought a dyno. This was the best tools I've ever bought. After that i ...

I just finished spending about 2 hours getting all the calculators functioning again. All of them are good to go except the fuel/oil one, which does still sorta work but because the code is written in a language 99% of browsers do not support anymore, it'll have to be viewed in Internet Explorer only.

In order to find them, Navigate to the front page or any article (If you aren't here already)
Click the link that says "Calculators & Tools" in the navbar (Under Classifieds, ...

Article and write up by Dennis Mears / Flotek Performance.

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In this article I'm going to discuss engine break-in .what it is why it's needed and the proper way of doing it . There are several methods people have used, this is only one and my preference that I prefer to use. Engine break-in is basically a procedure to allow for the thermal expansion of the rings and cylinder wall to wear in the moving parts to themselves to obtain a good bore seal. This is critical to the performance and longevity ...

What's your (And the companies) name?
Carlos Aloise, BDT Motorsports

Where are you located at?
Rancho Cucamonga, CA 91730

What do you/your company do?
Honda 2 Strokes, CR80 to CR500, and ATC250R & TRX250R Specialists

How long have you/your company been in business?
5 Years as an independent Shop

Whats your history with the Powersports industry, how did you become interested in it?
Good friend of Rob Selvy @ Selvy's Performance from 85-89, still good friendship with Rob

What are some of your companies proudest achievements?
Associated indirectly ...