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1980 Yamaha RC100
#9
Well after being in the basement all winter the RC100 emerged to the garage the Tuesday before New Castle event.  Still had many details to resolve and assemble deep into Wednesday night at midnight. Painted the pipe in the rain, had to ask someone how to assemble a DXL at 11pm, made a throttle sleeve stop out of a pen cap at 1130pm. At the track Don Axle helped me with set up and 1st start up  and determine I needed a carb return spring that Comet had in stock trackside. I was able to work though various issues such as an ill fitting DXL gasket emptying clutch fluid, and fouling plug on slow exit parade lap. THe Mychron was giving me first normal 250 to 350 degree temps then also warning flashes and temps of 1400 to 1600 degrees. I decided to ignore this data. On the parade lap for heat 2 the pen cap gave way and I drove the 6 laps with my left hand operating the throttle with my right , Ran a mid 1:12 lap that way. In Heat 3 I was still off the pace with clutch gremlins and motor did not pull as well as before,   running a 1:10.90 lap. I think I could have ran a 1:08 with all going well.  A top ten lap for the class would have been 1:05 ish in yamaha piston port. ( I ran in 1980 to 1987 to stay out of the way, I did run one heat in the back of piston port unscored).  It seems to run well and handle like a go kart, it seemed to have good ba1ance and turn in. I was able to assemble the kart with 98 % OEM yamaha parts.


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Messages In This Thread
1980 Yamaha RC100 - by Romero Llamas - 02-14-2018, 06:57 PM
RE: 1980 Yamaha RC100 - by sam bennett - 02-24-2018, 04:04 PM
RE: 1980 Yamaha RC100 - by Romero Llamas - 02-26-2018, 08:38 PM
RE: 1980 Yamaha RC100 - by Romero Llamas - 03-06-2018, 11:52 AM
RE: 1980 Yamaha RC100 - by Jim Waltz - 03-12-2018, 08:10 PM
RE: 1980 Yamaha RC100 - by Romero Llamas - 04-02-2018, 05:02 PM
RE: 1980 Yamaha RC100 - by Romero Llamas - 04-12-2018, 03:38 PM
RE: 1980 Yamaha RC100 - by Romero Llamas - 04-12-2018, 10:06 PM
RE: 1980 Yamaha RC100 - by Romero Llamas - 07-01-2018, 06:39 PM

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