Archive for March, 2010
Two-Stroke Superiority – Internal Combustion Engines Compared
The following scholarly paper was written by a long-time reader of the Two Stroke Motocross site. A great deal of work has gone into the writing of this paper. There are many footnotes to support the tremendous research required for such a paper. Enjoy! Outline Thesis: “Between piston engines, the two-stroke design can be shown empirically superior
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Engine Build HPP Valve Honda CR250 – Part 9
This is part nine and the final part of the CR250 engine build and will cover head, reed valve and carburetor installation. I will also perform the initial leak down test. Tools needed: Torque wrench, leak down tester, metric tool assortment Apply oil to the six cylinder head studs and install them into
Fuchs Silkolene 2 Stroke British Championship – Round One, Foxhill Moto Park
The vast package of races that is the Red Bull Pro Nationals made their 2010 bow at former des Nations and Grand Prix circuit Foxhill Moto Park on the 14th of March – the supporting Fuchs Silkolene 2 Stroke British Championships ran the Open class on Saturday which saw James Noble sweep imperiously
James Dunn Races RM125 against 250F’s in MXY2 Championship
Team Suzuki GB Youth rider, James Dunn, waved the two-stroke flag in true style once again at the weekend, as the Suzuki RM125 rider battled against a field of 250cc four-stroke riders, to finish round two of the MXY2 championship held at Mallory Park in Leicestershire in a great sixth place overall.
Shane Watts wins Steele Creek GNCC on whisper-quiet Two-Stroke
This press release was discovered by an eagle-eyed two-stroke fan from Brazil. Thanks Edward! Please note that it barely mentions that Shane was on a two-stroke 200 with a “DB Snorkel”. Also that he finished ahead of a Suzuki RMZ-450 four-stroke. So not only was Shane’s bike a two-stroke,
Glen Helen Cancels Contract for AMA National
2010 GLEN HELEN NATIONAL: OFFICIAL STATEMENT Glen Helen Raceway regretfully announces that it will not host Round two of AMA 250/450 Nationals on May 29, 2010. There has been long negotiations between MX Sports and Glen Helen Raceway in regards to the event. As a previous host of more than 14 AMA
Transworld Motocross – 2010 Yamaha YZ250 Video
From Transworld Motocross… In spite of how much any of us like two-strokes, the sad truth of the matter is that two-strokes in America are slowly fading away. Thankfully, though, for two-stroke lovers in the US Yamaha still produces both a 125 and 250 two-stroke. We got invited out to Glen Helen
Cobra mini bikes buzz Texas, lock down all the top 50cc podium spots
Mumford, Linville, Forkner, Smith, Kobush, Robertson & Rogers score big – as do former Cobra riders @ the Dallas Supercross! Photos courtesy of Motoplayground HILLSDALE, Mich., (March 24, 2010) – Kids on Cobra motorcycles continued to run up the big numbers synonymous with Cobra’s stellar racing
Broc Hepler on a YZ250 two-stroke March 20 & 21
Looks like another Pro racer has “switched” to the two-stroke. This past weekend Broc Hepler showed up at a local indoor and outdoor track to race around on a YZ250. Kind of interesting that he would choose a two-stroke, when all the world seems to be four-stroke “crazy”! According
Engine Build HPP Valve Honda CR250 – Part 8
This segment will cover piston, rings and cylinder installation and power valve adjustment. Tools required: Torque adapter, torque wrench, standard assortment of metric tools. Most people have rebuilt the top end of their ride so a lot of this information is old news. I am presenting the techniques
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