Bikernet Event Coverage: 2 Stroke Extravaganza 2016

 
 
Best Exotic Show Award went to Pete Phillips’1966 Bultaco Metralla 250. Speaking of exotic, the gracious trophy presenter is named, believe it or not…Harley!
 

About to celebrate its 20th anniversary, the annual Two-Stroke Extravaganza pitched its tents at the popular Hansen Dam 40-acre recreational area located in Lake Terrace, CA in the North Valley about a half hour’s ride from downtown L.A.

 

At the event’s helm were Paul Kralick and Mike Martinez, the two even handcrafting the show trophies from 2-stroke parts. Says Paul “The first show back in ’98 was held at La Mirada and I think about five guys showed up. We’ve come a long way since then, the event attracting a great variety of machines, many rarely seen. We’re just guys that love the 2-stroke bikes and have a loose-knit group, no dues or rules, focusing on rides throughout the year as well as the show.”

When asked for his pick of some of the rally’s highlights, Paul says, “Just seeing Jay Leno ride up on the Scott Flying Squirrel was great. We had invited him to the show when we saw him at Newcomb’s Ranch the day before on our pre-show ride through the Angeles Crest. We had riders from San Francisco, Arizona, Nevada and locally. We all jumped on our bikes and rode 60 miles out to the canyons.”

Among the many rare machines that made an appearance at the Extravaganza was the Suzuki “Gamma” RG500, circa ’85-87. The 94 HP/ 350 lb. street legal race replica was ridden by Nick Cook who happens to live just two miles from the famous SoCal bike gathering spot “Cooks Corner.” The Gamma family included engine displacements of 250, 400 and the 500, the name linked to Suzuki’s RG “Gamma” GP racer that had taken seven consecutive wins in the 500cc class. Meanwhile the “Cook” family includes several classic two-strokers brought to the event. Nick’s restored 1973 Kawi 750 H2 triple garnered the rally’s Best Kawasaki trophy and a restored bad-boy blue ‘71 Kawi 500 H1 triple also took an award.

Once considered the fastest street bike, back in ’69 the 500 H1 scorched the ¼ mile in 12.9 seconds but handling and brake deficiencies earned it the unpleasant moniker “Widowmaker” but that didn’t stop it from being a major sales success. Although improvements were made, the last 500 rolled out in ’76.
 

The 500’s big brother, the Mach IV H2 was launched in 1972 and rightly tagged a “superbike.” It set a production bike ¼ mile record of 11.95 seconds at 115.38mph on March 11, 1972. Though a monster, it was relatively refined and sold new for $1395 circa’72-’75. Prices have accelerated since then.

Another rare classic that’s earned an interesting nickname was the Suzuki “Water Buffalo,” a couple pristine examples in attendance including a minty blue beast. Biggish, heavyish and thirsty, maybe the nickname made sense, but the water-cooled Suzuki GT750 triple 2-stroke still rocked the 1971 bike shows when it first appeared, remaining in production until 1977. Not as freaky fast as the Kawasaki H2 competition, it was rather a more docile cruiser, but still capable of 120mph.
 

A 2-stroke bike that sold by the droves in the U.S. was the ‘70s Yamaha RD350/400s, many of which showed up in force for the Extravaganza, both restored and modified and that included Bill O’Hanlon’s “plum purple” 1975 RD350 that earned the “Best Modified” show award.

Suzuki GT750 “Water Buffalo” 

All flavors, all sizes took part in “Smokin’ Parade Lap” that established new decibel record for the event. 

One of the event highlights was the “mass light up” that involved everyone switching on their bikes and taking several “parade laps” around the staging area. Like they say, the sound alone was worth the price of admission. And that included the distinctive growl of the near legendary Kawi 500 and 750 triples that back in the ‘70s the mags called “scary fast.” Today they’re much prized motorcycle milestones as were many of the bikes in the show or ridden in by spectators. That said, the event was free to the public, any funds made going to paying for the park permits, etc. Sponsors that help made the show a great success included early founder Doug from Moto Carrera in Washington State, HVC Cycle located in Nebraska and Economy Cycle in Illinois. Summing it up organizer Paul Kralick says, “The Hansen Park people were great and we’ll be back here next year for the 20th.

Refined Panic
When you threw your leg over a Kawi H2 750, you were dancing with one of motorcycling’s most fearsome street machine. Best Restoration went to Rodney Peacock for his outstanding ’72 H2.

Scott Squirrel over which 2-stroke fans go nuts.


Who First Lit the 2-Stroke Match?

It all began puffing along in 1880 when an English engineer Dugald Clerk banged together a 2-stroke engine design. But then it took about another 25 years before another Brit, one Alfred Scott, secured the first patent for a 2-stroke, in this case a V-Twin. To further enshrine his name into the history books, a few years later in 1912 he came up the rotary valve engine. Scott was also the innovative thinker that gave the world the Scott Flying Squirrel motorcycle, and yes the bike ridden to the Extravaganza by Jay Leno.

The two-stroke design philosophy centers around efficiency and an economy of components, fewer than the number required by four-stroke engines that utilize camshafts and valves. Fewer parts also meant they are lighter pound for pound and produce more power than a four-stroke. But four-strokes get higher scores in the long run as they are less polluting, less subject to heat problems, for the most part more durable and reliable and offer a wider powerband. Two-strokes however, at least for a while, literally left the 4-stroke competition in the dust, rather the smoke.
 

Two-strokes initially burst upon the international scene in a big way during the 1960s World Championships when Yamaha and Suzuki took command of the event taking the checkered flag. What won on the track won on the showroom floor as well, resulting in a plethora of ringy-dingers literally popping up from various manufacturers. Eventually design changes did away with was the messy separate mixing of oil and gasoline when Yamaha introduced its “Autolube” design that automatically mixed both fuel and lubricant, something found in the family of Yamaha RD models as well as many others.

The earth shook in the face of fearsome two-stroke predators during the 1970s, including a full smorgasbord from Kawasaki in the form of 250, 350, 500, and 750cc Triples, the 750H2 basically the T-rex of street legal smokers, while Suzuki also offered a menu of 380, 500m 550 and 750cc machines.
 
In the mid-1980s, manufacturers began to offer liquid-cooled GP replicas such as the V-4 Yamaha RZ500, the square-Four Suzuki RG500 and the V-3 Honda NSR400. Unfortunately, Canada was the closest these screamers ever came to America aside from a few creatively imported “grey market” examples.
 
Political correctness and a lot of coughing finally sought to blacklist two-strokes from government acceptability. In strategic end run, Yamaha introduced a catalyst-equipped RZ350 to America in 1984, but its demise in 1985 signaled an end of an era. Meanwhile, Europe and Japan enjoyed the fast and nimble quarter-liter GP replicas for a while, only fading away in recent years.
 
While the last year for Honda two-strokes was 2007, they live on in off-road bikes from European builders such as KTM and Husqvarna while Yamaha’s YZ250 is also still available… still fast, furious and raucously ringy-dingy – music to the ears of many motorcycle enthusiasts.
 
 
 Nick Cook brought a brace of award winning Kawi triples including this 500.
 
 
A FaZr on Stunning 

Thumbs up goes to this Yamaha FZ, the V-4 featuring then radical 5-valve cylinder head in a radial design producing a 750cc bike good enough in ’85 to offer 150mph.

Still in the Wrapper 
What appears to be a showroom mint Suzuki TC-90J Blazer, the dual purpose bike offered from 1969-71.
 

The Family that Rides Together… 
Grandpa pilots a Honda “Chappie” while Grandson steers a Harley trike.
 

Best Modified Show Winner went to Bill O’Hanlon’s 1975 RD350.

Not an Optical Illusion
Father and son team of Tony and Sean Wika brought two widely different machines. Sean rode rare 1998 Honda RS125, a downsized Factory Road Racer while Dad brought a mammoth off-road 1991 Honda CR500 “legalized” for the street.

Have Leathers/Will Commute 
Sportbike riders Brian and Anton ponder the rarely seen Honda MotoCompo. Pegs, seat, handlebars fold into a suitcase-sized package designed to fit in the trunk of Honda city cars. Park outside mega congested Tokyo, pop open the MotoCompo and putt off to work. Over 50,000 were sold in Japan back in the early ‘80s.
 
We’re Going to Need a Bigger Trunk 
Produced from 1987-92, Yamaha’s 2-stroke 50cc YSR pocket racer offers plenty of compact fun all the way up to 38mph through a 5-speed tranny.

Best Suzuki award went to Jose Tejeras for his rorty 1976 GT 550 

The GT stands for “Grand Touring” as the 550 was part of the 3-cyclinder 2-stroke series produced by Suzuki including 60,000 of the 550s produced in just six months in 1972. The front cylinder scoop was part of the “Ram Air” cooling system to help reduce temperature induced power loss. For the U.S. market the bike was also tagged the “Indy” model, the bike producing about 50 HP.

19th Two-Stroke Extravaganza Show Winners

Best Kawasaki – 1973 H2 750 Nick Cook
Best Honda – 1996 NSR 250 Gary Bjorling
Best Exotic – Pete Phillips 1966 Bultaco Metralla 250
Best Yamaha – Dan Patterson 1976 RD 400
Best Daily Rider – Mitch Feingerseth 1972 Kawasaki H2 750
Best Suzuki – Jose Tejeras 1976 GT 550
Best Restoration – Rodney Peacock 1972 Kawasaki H2 750
Best Scooter/Moped – George Yamanaka 1971 Suzuki Trailhopper 50
Best Off Road/Enduro – A Pro’s Touch 1974 Suzuki TM 125
Stage 13 Porting Award – Stacy Porter 1977 Yamaha RD 400
Best Modified – Bill O’Hanlon 1975 Yamaha RD 350
Best Rat Bike – Sam Hoffman 1976 Bultaco Alpina 250
Best of Show – Gary Bjorling 1996 Honda NSR 250

 See you next May for the 20th Annual 2-Stroke Extravaganza!
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