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My 1966 YL1 Twin Jet is ready to roll

Started by 1976RD400C, June 22, 2022, 06:23:26 AM

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1976RD400C

I bought this a couple weeks ago. Gave it a complete checkup. Hone and new rings, fix wiring, new battery, set timing, complete carb clean, new chain and sprockets, 15-40 oil in the forks, left side switches, shim washers on clutch springs to prevent slipping, a couple decals, and lots of cleaning. It runs great. What a hoot. Can't wait to get it out on the open road. Progressive Insurance says it will be $12 to add it to my existing policy. I see on BaT auction they are going for some nice coin.







EDIT: fixed image link code
'76 RD400 green  '76 RD400 red   '84 RZ350

John Ritter


rodneya


msr


SoCal250

That looks really nice! :clap: Cool little bike!

I wish insurance was that cheap here.
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)

1976RD400C

Took my Twin Jet for its maiden voyage and eeh. It will go 60 if you wring it out. Sounds good and cruises at 50 ok. It doesn't like hills. I checked the motor and exhaust pipe temperature after running it hard and it stays really cool, the head and spark plug were about 210 degrees. The suspension is like WHOA. If you go through woop-de-doos it woop-de-doos. I think I need 50wt in the forks. The rear shocks have no damping at all. Leaning it moderately in a turn is sketchy. Total cost to put it on the road was $50 for insurance, registration, and a plate so I can't complain.
'76 RD400 green  '76 RD400 red   '84 RZ350

2steve

I see no problem finding TDC with a dial gauge in the spark plug hole.

m in sc

thats sounds about right. Yeah the stock shocks are awful, i have used small ones on my kawi 120 (similar) that can actually do something over bumps.  Look for something like this:

https://www.treatland.tv/fully-chrome-adjustable-shocks-280mm-p/280mm-chrome-shocks-8mm-10mm.htm


as far as the front forks, i put in the heaviest oil i could find for forks, and its passable. did same with the 70 HS1 I had.  I mean, its still sticks and twigs, but slightly better.


Hawaii-Mike