Hey there -
I fully admit to not knowing what I'm doing entirely, and will therefore ask some decidedly stupid questions. But those questions need answers anyway, and perhaps I'll get educated in the process...
In another post, I was discussing a starting issue on a friend's '74 850. It was suggested that I check the ignition timing. Doesn't seem like something that is all that hard to do, but I'm having a heck of a time. FYI -this has a Boyer ignition and the magnets are lined up with the logo.
1) Manual says to get it to TDC by rotating the engine with the kickstarter (slowly) until the piston is at TDC and both inlet and exhaust valves are closed. I do this and it appears to me that the timing mark is way way off. Past the 40 degree mark by 1/4". Shouldn't it be 28 degrees? (I have to do a static timing check, I have no scope).
2) Assuming that I do need to advance the timing, or change the timing - uh (dumb question part) how the heck do I do that? My basic understanding is that I should be at 28 degrees at TDC. If I move the rear tire forward so that the mark lines up, I'm affecting the TDC issue, right - so the timing would still be off.
Sorry - Timing has never been my strong suit and this one is confusing me....
I fully admit to not knowing what I'm doing entirely, and will therefore ask some decidedly stupid questions. But those questions need answers anyway, and perhaps I'll get educated in the process...
In another post, I was discussing a starting issue on a friend's '74 850. It was suggested that I check the ignition timing. Doesn't seem like something that is all that hard to do, but I'm having a heck of a time. FYI -this has a Boyer ignition and the magnets are lined up with the logo.
1) Manual says to get it to TDC by rotating the engine with the kickstarter (slowly) until the piston is at TDC and both inlet and exhaust valves are closed. I do this and it appears to me that the timing mark is way way off. Past the 40 degree mark by 1/4". Shouldn't it be 28 degrees? (I have to do a static timing check, I have no scope).
2) Assuming that I do need to advance the timing, or change the timing - uh (dumb question part) how the heck do I do that? My basic understanding is that I should be at 28 degrees at TDC. If I move the rear tire forward so that the mark lines up, I'm affecting the TDC issue, right - so the timing would still be off.
Sorry - Timing has never been my strong suit and this one is confusing me....