3/15/15

RT1 project

Last year I bought a '70 RT1 frame, and I've been collecting parts and doing some mock-up to see how I want to do it. I'm going to use '73-'74 MX250/360 and SC500 wheels and forks. I've got a high shoulder MX250 wheel for the rear, but it doesn't have a tire on it, so isn't on for mock-up. This one will be a road bike, so I'll likely use trials tires for the finished bike.
101_8188

101_8190

The pipe is a Bassani. I'm not 100% sold on how they look, but they are supposed to work well and sound nice.
101_8202

DT1 MX project

I did some assembly on the DT. I'll be getting to work on the tank, seat and rear fender next.
101_8176

101_8163

101_8171

101_8184

101_8179

101_8183

3/14/15

DT1 MX project

Before finishing the top end I had to static time the points to open at 3.2mm (.126") before top dead center. A dial indicator gauge is used to measure BTDC, and an ohm meter to tell when the points open. With one lead connected to the ignition wire and the other grounded to the engine, the meter reading changes once the points open.
101_8157

I made sure the timing tab lined up with the factory mark on the flywheel at 3.2mm BTDC so later I can just use a timing light to check timing. The red mark is the factory mark at 3.2mm BTDC, and I put a black mark at 2.3mm BTDC for reference in case I need to run less advance.
101_8153

The engine is ready to go in the frame.
101_8160