A full photo gallery with over 150 images for this RD400 is available here for your perusal. Please let us know if you require any other images.
“Cool doesn’t even come close.” That’s how Visordown summarized the iconic RD400 in one sentence, but the longer story isn’t very complicated, either. The RD400 came about when Yamaha made the RD350 a bit bigger in 1976 – displacement was 399cc. Thanks to 44 horsepower, the bigger RD was capable of hitting the ton with a top speed of 105 miles per hour. Most people know the 400 simply for being an easier to ride upgrade over the 350, but it was also notable for being the first production motorcycle to feature cast wheels as standard. The 400 motor was more than a bored out 350 unit – Yamaha increased the stroke and in doing so they had to build new crankcases as well. The bike weighed about 350 pounds, and it was the most popular two-stroke sportbike of its day.
The seller acquired this example (VIN: 1A1-306602) in 2017, but it didn’t meet his standards so he gave it a “nut and bolt restoration”. His goal was to keep the cosmetics stock but to work the motor so that it would better suited for street duty.
He sent the head and barrels to Scott Clough for a Stage 1 tune focused on improved mid range power. Other highlights of the work include a rebuilt crank with new bearings and rods, rebuilt oil pump, and a new coat of Chappy Red paint. The photo gallery above includes several images that show the restoration process.
This RD has only 9,431 miles on the odometer and it is in amazing overall condition. She runs perfectly after a full service by our chief mechanic and has current California tags and registration – a rarity for 2 strokes in this state. Whether you want to show or go, this RD is ready. Or should we say ReaDy?