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Yamaha Refurbishment Project: 1968 YAS1C

Started by Rizingson, January 08, 2026, 04:42:32 PM

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m in sc


Rizingson

Quote from: mnein on February 26, 2026, 08:04:27 AMThat's awesome. An NOS seat? Where the heck did you get that?
I got it out of Thailand, not cheap and then still have to add the tariff. :sad:

Simmons1

Wow that is fantastic looking!

Wish I had your skills and patience for all the detail work.

Rizingson

Since I know some of you have been following this Yamaha Scrambler project here's the final update: Other than a few tuning tweaks I'm finally finished with the '68 Yamaha YAS1-C "Special Edition". Put on the new petcock which was the last part to arrive. Then I flushed the injection lines, filled the oil tank and bled and primed the Autolube system. So with no need for an auxiliary fuel tank it was time for a shake down ride. From my observation 5th gear is too tall to be practicable in all but level ground or downhill, basically an overdrive. Also too a wide ratio spread between 1st & 2nd. I still need to get the idle more steady as it continually wants to slow down and die. All in all not a bad first ride (since it's been sitting since 1969), if I keep the RPM's up. Click the link below to see how it ran!

YouTube video1.jpg


m in sc


Simmons1


JKV45


mnein

I'm not much into the older stuff but that bike is just too cool.

1976RD400C

That's a beauty. There's just something about high pipes that is so cool.
'76 RD400 green  '76 RD400 red   '84 RZ350

SoCal250

Quote from: 1976RD400C on March 03, 2026, 09:51:05 AMThat's a beauty. There's just something about high pipes that is so cool.
This!^^ +1  Very well done!
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)