DNUGENTUSMC
Well-Known Member
- Messages
- 31
- Reaction score
- 4
- Points
- 62
- Location
- Cape Cod, MA
- Boat Make
- Yamaha
- Year
- 2006
- Boat Model
- AR
- Boat Length
- 23
So this motor has been running great, only issue was the starter had to be whacked with a wrench from time to time in order to get it to crank which then it would fire up effortlessly every time. Replacing the starter solenoid did not help but was a cheap replacement anyway.
So I put a new starter in (extremely easy on starboard motor) and it now cranked every single time with no issue. However, a few days later it would crank but not start.
Using an inline tester I determined none of the 3 brand new plugs were getting spark, also determined this wasn’t due to the lanyard switch removing it completely which had the same issue of port side starting and starboard still no spark.
So getting into the CDI box,
The 10amp AGC fuse was good
“pulse coil” read about 268ohms between all 3 windings (248-372 is spec so it’s good)
“charge coil” read 190ohms from B/R to Brown (172-258 spec so good) but B/R to Blue is open.
Would an open winding on the charge coil create a no spark condition? Technically that should be a completely different coil than the pulse coil which is what sends the spark?
How do I test the voltage regulator/rectifier and the CDI box itself or should I just swap those one by one and see if the problem follows the part?
So I put a new starter in (extremely easy on starboard motor) and it now cranked every single time with no issue. However, a few days later it would crank but not start.
Using an inline tester I determined none of the 3 brand new plugs were getting spark, also determined this wasn’t due to the lanyard switch removing it completely which had the same issue of port side starting and starboard still no spark.
So getting into the CDI box,
The 10amp AGC fuse was good
“pulse coil” read about 268ohms between all 3 windings (248-372 is spec so it’s good)
“charge coil” read 190ohms from B/R to Brown (172-258 spec so good) but B/R to Blue is open.
Would an open winding on the charge coil create a no spark condition? Technically that should be a completely different coil than the pulse coil which is what sends the spark?
How do I test the voltage regulator/rectifier and the CDI box itself or should I just swap those one by one and see if the problem follows the part?