Originally posted by Peter Cooke
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Cotten, I moved shovelhead operating temp here
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Isn't that why cars have the 'accessories' position on the ignition switch? So you can use the battery without charging the coil and risk burning it out.
I was always taught to not leave the ignition switch in the 'on' position, without the motor running, for that reason.
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Originally posted by pan620 View PostI have seen 3 or 4 coils do what happened to yours, can not explain why but it does happen.
It kind of sucks to, because a big bike show is going on today, a huge 30 mile Trump parade and it's my birthday. Could have been worse, it can always get worse.
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I have seen 3 or 4 coils do what happened to yours, can not explain why but it does happen.
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I knew that if the points were closed, Ryan,...
That it would drain the battery; If it cooked the coil, I'd guess that was one helluva battery.
...Cotten
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Originally posted by T. Cotten View PostLeaving the switch on cracks coils, Ryan!?!
This is new to me, as is everything electrical.
.... Cotten
Why did this happen, why did it take so long to happen and why didn't the breakers protect it? Oh, the points were closed.
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Leaving the switch on cracks coils, Ryan!?!
This is new to me, as is everything electrical.
.... Cotten
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Oh my gosh, I make a stupid, stupid mistake. I left the ignition switch on, by mistake, for about 45 minutes after doing the compression test and cracked my coil in a few places. The circuit was protected by a 30 amp breaker and then went through a 15 amp breaker. I am so lucky I was beside my bike when this took place.
As far as the timing went as far as comparing strobe light timing to static timing: Static timing was advanced so much that the line was just outside the window. I retarded the timing so the line was in the center of the window at or just over 2k rpm.
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Originally posted by T. Cotten View PostThe first thing I would do, Ryan,..
Is to strobe it to where the line is in the front of the hole, and see if anything improves.
If its clacking away from stop signs before the tank is hot, no cooler is going to help.
Do you know what pistons are in it? Can you give us a compression reading?
....Cotten
So my compression ratio is almost 10:1 (145/14.7=9.8)
I just strobe timed is and going on a test ride.
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Hopefully I can get it with the strobe light, if not the servicar weights and springs.
How would I use a manual timer without the mounting at the block for the timer cable? Is there an adapter plate or would I have to fashion one? Boy !this is turning into some work.
I do not have this much trouble with my hopped up 289 hipo with the same total timing of 35° and 2.5 points up higher on compression.
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Thinking out loud here, perhaps the Servi-Car weights and springs are set up for a slower advance due to the needs of the bike, and those needs somewhat mimic a sidecar tug...
And simple compression plates under the cylinders could help with the ping.
On a manual advance timer the rider can control the advance curve which I find quite handy in traffic or steep grades on my sidecar rig.
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