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1. #Yamaha motorcycle engine serial number lookup upgrade#
2. #Yamaha motorcycle engine serial number lookup full#

Other aluminum parts include the number plate, skid plate, rear sprocket and fuel and oil tank caps. Brown leather was used for the seat and carried through to the grips. They fitted an aluminum TT-style fuel tank and fabricated an aluminum tailpiece, modifying the subframe to support it. When it came to tackling the DT250’s bodywork, One Down Four Up set out to shed as many pounds as they could. Fellow Californians Works Performance supplied a set of custom-built shocks, which included offset eye mounts to accommodate the difference in width between the frame and swingarm. Out back, an aftermarket Yamaha SR500 swingarm was modified to fit the DT250, simultaneously bringing down the bike’s weight and extending its wheelbase. Later model 35mm XS forks were chosen to accommodate chunky dirt track tires.

#Yamaha motorcycle engine serial number lookup upgrade#

To upgrade the suspension, One Down Four Up bolted on a Yamaha XS650 front end-splicing the XS triple trees with the DT’s steering stem, and upgrading it with tapered bearings. Hiding under the seat is an Antigravity 4-cell battery. This allows the team to run LED lights at both ends. The electrical system has been upgraded via a 12-volt alternator, with an integrated electronic ignition. (Look above, and you’ll see the extra oil cap poking out behind the steering stem.) This new set-up lets Wayne and Gabrielle fuel up anywhere without having to mix gas or carry extra containers. The stock oil injection pump was retained and a new oil tank installed below the fuel tank. According to Wayne, “it’ll pull the front up in almost any gear.” One Down Four Up gave the engine a refresh-squeezing more power out of it by re-jetting the stock carb, and fitting a K&N filter and a tuned, nickel-plated Circle F expansion chamber. Since the DT250 would run primarily on-road, a balance had to be struck between performance, reliability and practical considerations. With fresh inspiration, they decided to turn the DT250 into a flat tracker-taking additional cues from the AHRMA vintage flat track class guidelines. It was an old Bell Star painted in a yellow, orange and red color scheme from there the design was born.”īetween the two of them, Wayne and Gabrielle handle all design, repairs, fabrication, upholstery and photography in-house.

#Yamaha motorcycle engine serial number lookup full#

He let us dig through his barn full of old race bikes and parts, where he pulled out his old riding helmet from under a dusty OSSA frame. “Then we ran into an old flat track racer around town.

“But we sat on it for about a year, waiting to find the right inspiration.” “We originally bought the bike for Gabrielle to turn into her daily driver,” explains Wayne. They trekked north from their headquarters in Redding, California, to show off Gabrielle’s new ride: this stunning 1975 Yamaha DT250. This year Wayne Corbett and Gabrielle Jones of One Down Four Up made the trip, and left with a trophy. Every year, hundreds of custom motorcycle lovers descend on Portland, Oregon, for the One Motorcycle Show.