Ya going to call me or give me your number?. ............lm
agarvin wrote:I'm not sure what the proper designation for this engine is, but it has one set of points. The cam lobe has two bumps on it that are 180 degrees apart. The coil is a single coil with two high tension leads for the spark plugs. What I have found is the cam gear (which chain goes around) has a dimple on a tooth just above the flat on the points side. I align the rotor to the T mark. Then rotate the cams with the chain disconnected till the dimple mark is at the top and I can see it per the manual. Then install the chain and master link at this dimple. What I found at this point was that there is a line mark on the points shaft that was pointing down at this point. The manual seems to hint that this line should be pointing up. I have since taken the cam shaft apart and have found that the mark on the points shaft can be installed in one of two positions either with the line pointing down or the line pointing up. This points shaft has a flat on the end which fits into the auto advance mechanism. With two lobes on the point shaft and one set of points, both coils fire at the same time. One cylinder is on compression at this time and the other is on exhaust I think. This is called wasted spark in the Triumph world. I have searched the forum and have found that this seems to be a problem found by others in the past. The original problem was that I could not rotate the points plate far enough to get the motor to static time at the F mark. The points open on this bike at about 30 degrees btdc. Others have just elongated the slots to allow the engine to be timed. I am not sure why this should be necessary unless it is because of wear on either the cam lobe or maybe the points rub bar. I have ordered new points and condenser. Another reason I think someone else has been in this motor is because the original condenser was still mounted on the head, but was disconnected and a type 1 (two lead) condenser was bolted to the engine below the carburetor and wired to the points. After taking the cam shafts apart I can see that they can not be put together incorrectly as the missing splines force them to only go together one way. As my uncle used to say this is a 4 stroke engine, it is not rocket science. I think I am on my way to solving the problem. Thanks to all who responded. Al
