Boxerworks.com

Thanks for the info, I’ll check it out when I get back to Wisconsin. I’m in Florida for the winter.

It started on a ride. Happened abruptly but I limped it home. Definitely oil. Pipes are black w/oily film. It will run great for a bit then both pipes start to smoke. Steadily worsens. Thanks!

No I haven’t, it will idle fine for a few minutes then both cylinders start smoking. Upright clamped on my work table.

Hey All, My 1974 R90S started smoking heavy after start up. Compression is 150psi both sides. Checked with camera, cylinders have cross hatch and look excellent. It will run perfect for a few minutes then both cylinders start to smoke excessively. Checked needle and seats in both carbs, no leakage. ...