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Tech more_>

Building a two-stroke leak down tester for under $50, in two stops.

by Ron Smith on 03/11/2017

Assembled Tester

Because air leaks are particularly risky on a two-stroke it is important to test for them. Unlike a four-stroke engine a two-stroke requires an air tight crank case to operate correctly. It is alternately under vacuum and compression during each cycle.

You can build one yourself for under $50. Here is how.

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News more_>

KTM's new EFI two stroke photos.

by Ron Smith on 05/15/2017

EFI Engine

KTM releses photos of the new Tranfer Port Injection two stroke.

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Editorials more_>

The Second Coming of the Two Stroke Motocross.com

by Ron Smith on 02/07/2017

Under new management and with a new focus we here at TwoStrokeMotocross.com are excited to be a part of the grass roots effort to bring the two stroke back to prominence.

We have worked hard to recover as much of the original content of this site that was lost in a server crash as possible. Some of the images were forever lost but the vast majority of the original site is back, including a little over 59,000 posts in the forum, some of it truly unique and valuable stuff.

Take a look at the Archves for as much of the original TSM content (most!) as we were able to recover.

We invite you to enjoy what we have brought back and look forward to adding several new features in the coming months along with interesting and informative new content.

Welcome and please check back frequently as we will be bringing new content and new features online as fast as we can!

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Race Recaps more_>

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Videos more_>

First Ride 2 Stroke Fuel Injection KTM 250 XC-W - Dirt Bike Magazine

by Ron Smith on 05/24/2017

Basic feature run down with some nice footage.

 

First Ride 2 Stroke Fuel Injection KTM 250 XC-W - Dirt Bike Magazine

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