1973 Yamaha SC500

[@rockman49er]

Cool bike i had the 80 cc version when i was 12 my first bike happy new year

[@CK-mf6du]

I was looking up the sc500's, and this came up. I think I might have sold ya a pipe for an mx360, had a yellow silencer. This bike is awesome, I had no idea you could fit those motors into the dt chassis. You obviously have some knowledge on tuning them. Super nice setup!

[@TurbodanNM]

Yessir, still got that pipe. I haven't confirmed exactly what interchanges with these but I am pretty sure the later IT/MX/DT 400 motors will bolt right in as well. I may never run out of things to try with this one.

[@CK-mf6du]

@@TurbodanNM very cool sir! I just now see your article on yamduro forum, I'll have to check it out.

[@RicardoValdes-r6w]

This bike is one of the most great 2 stroke bikes by Yamaha, this bike would benefit from sand blacking the frame and a good primer and black paint job on the frame with a Hooker expansion chamber like the Hooker and the bike would sound awesome.

[@TurbodanNM]

I'll have to upload a new video. I had a custom pipe made and it does sound awesome. Makes a bit more power too.

[@carlatamanczyk3891]

I rode a 74 Yellow SC500. It looked like the 360 MX. That bike detonated so bad.....

[@TurbodanNM]

In stock form they certainly do. At least the SC had some power though. When this 74 DT was stock it would detonate almost all the time, making a gutless 22 hp in the process. They have a reputation for holing pistons.

[@Scott-ow3tz]

She's Beatiful

[@toddhazzard1562]

The Fact it's still here and Running shows the quality of the engine.40hp is good enough.

[@toddhazzard1562]

Good Job. You should be proud.

[@TurbodanNM]

@@toddhazzard1562 thanks. The original 360 motor just hit 15000 miles, still running great. This one was a fresh build from spare parts. No idea where they have been or what they have been through but everything looked good and it went together with fresh bearings and seals.

[@TopRevs]

she sound healthy

[@markdelichte5401]

I just picked up a couple of these SC 500 engines. Are you using the same carburetor as the 360 . and you went with CDI Ignition . Started washing your channel. a couple questions thank you

[@TurbodanNM]

I'm using a Keihin PWK on this motor, that carb came on a bunch of more modern bikes. I was using this same carb on the 360 motor too. The stock 360 carb isn't even big enough for that motor, both the 360 and the 500 work well with a 38mm. The ignition is a kit from Rex's speed shop in the UK, originally designed for the 74 360. Everything fit right up to the 500, even the dt360a flywheel.