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#1
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Yep the crank sensor is an optical style instead of magnetic like older engines were. It reads a light signal which has deviation across the RPM range than magnetic sensor's do. PRV= peak reading volt meter. You need one to properly diagnose a magneto as they produce large power spikes and you want to read the highest part of the peak.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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#3
10-06-2009, 07:10 PM
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Well, just to update.
After about a week of the parts shop ordering the sensor from two different locations, it arrived. While installing the sensor, it was obvious that someone else had done the same thing but had damaged the timing wheel and just bolted it back in place. Ordered that part today, we'll see if that was the whole problem when it arrives.
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 '75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny
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#4
10-20-2009, 02:49 PM
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Hopeful final update.
Replaced the timing wheel and it seems to have fixed the problem, we'll see. The former "mechanics" re-installed it damaged, it is likely it was a little out of time. Pictures of broken wheel and flash holes for sensor to read.  
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'75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny
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#5
10-21-2009, 08:06 AM
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I love the "A- HA" moment. That is more than likely gonna fix her up. Waiting on parts really stinks.
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