AndyFromWI
Cadet
- Joined
- Jul 11, 2011
- Messages
- 11
SOLVED: Needed Digital Volt Adapter to test the stator.
Switchbox was bad. See last post.
-andy
1989 Mariner 25 hp electric start, remote NO SPARK
Black stator
Mechanical ignition advance
SN: 0c1 51245
Problem:
Prior year, one of the plugs would easily fowl, would have to clean it to get started.
Last fall, all of a sudden, it would not start, no spark. The boat started, a day later, in the driveway it would not start.
NO Spark.
Trouble Shooting:
Checked electrical connections, removed Yellow/black stop wires? No Spark
Pulled Flywheel, tested ohms using fluke digital meter:
trigger OK, stator (ohms low), rectifier OK, coils OK.
Stator ohm readings were low:
Black/Yellow ? Ground: 29.2 should be 32-38
Black/White ? Ground: 27.9 should be 31-37
Original parts:
Switchbox: 339-7452A10
Trigger: R98450A10*
Stator: 86617
Replaced Parts:
Stator: 174-6617k1
OLD Stator DVA testing (disconnected from switchbox)
Note: Perhaps I'm doing the test wrong.
Using Fluke 12 Digital volt meter, no special adapters or harnesses.
From Meter:
Black wire connected to Ground (or the Ground wire of the Stator)
Red wire connected to either the Stator Black/Yellow or Black/White
Tried DV test while cranking engine (spark plugs removed)
Black/Yellow ? Ground: 0V should be 150-300VDC
Black/White ? Ground: 0V should be 10-75VDC
Purchased a new stator: CDI P/N 174-6617K1
Stator ohm readings on new stator:
Black/Yellow ? Ground: 2413 should be 2200 ? 2600 (OK)
Black/White ? Ground: 226 should be 225-300 (OK)
Testing the Stator by cranking the engine, and reading the voltages, using a digital Fluke 8 meter.
Battery charge is full, spark plugs removed, switching meter to both AC and DC volts.
stator DVA test with switchbox connected
-14VDC Black/Yellow VDC (should be 180 or more VDC)
41VAC
3.6VDC black/white VDC (should be 25 or more VDC)
11VAC
Stator (Switchbox disconeccted)
23-24VDC black/yellow (should be 180 or more VDC)
75VAC
-.8 + .8 VDC black/white (should be 25 or more VDC)
8VAC
Note: Flywheel is on, but Not torqued down.
Flywheel looks good, the two magnets are in place and do not looked cracked.
I am at a loss about my readings...
Is the flywheel bad, am I doing the readings incorrectly, I'm using a fluke 12 digital meter?
Any help would be
Thank you.
-andy
Switchbox was bad. See last post.
-andy
1989 Mariner 25 hp electric start, remote NO SPARK
Black stator
Mechanical ignition advance
SN: 0c1 51245
Problem:
Prior year, one of the plugs would easily fowl, would have to clean it to get started.
Last fall, all of a sudden, it would not start, no spark. The boat started, a day later, in the driveway it would not start.
NO Spark.
Trouble Shooting:
Checked electrical connections, removed Yellow/black stop wires? No Spark
Pulled Flywheel, tested ohms using fluke digital meter:
trigger OK, stator (ohms low), rectifier OK, coils OK.
Stator ohm readings were low:
Black/Yellow ? Ground: 29.2 should be 32-38
Black/White ? Ground: 27.9 should be 31-37
Original parts:
Switchbox: 339-7452A10
Trigger: R98450A10*
Stator: 86617
Replaced Parts:
Stator: 174-6617k1
OLD Stator DVA testing (disconnected from switchbox)
Note: Perhaps I'm doing the test wrong.
Using Fluke 12 Digital volt meter, no special adapters or harnesses.
From Meter:
Black wire connected to Ground (or the Ground wire of the Stator)
Red wire connected to either the Stator Black/Yellow or Black/White
Tried DV test while cranking engine (spark plugs removed)
Black/Yellow ? Ground: 0V should be 150-300VDC
Black/White ? Ground: 0V should be 10-75VDC
Purchased a new stator: CDI P/N 174-6617K1
Stator ohm readings on new stator:
Black/Yellow ? Ground: 2413 should be 2200 ? 2600 (OK)
Black/White ? Ground: 226 should be 225-300 (OK)
Testing the Stator by cranking the engine, and reading the voltages, using a digital Fluke 8 meter.
Battery charge is full, spark plugs removed, switching meter to both AC and DC volts.
stator DVA test with switchbox connected
-14VDC Black/Yellow VDC (should be 180 or more VDC)
41VAC
3.6VDC black/white VDC (should be 25 or more VDC)
11VAC
Stator (Switchbox disconeccted)
23-24VDC black/yellow (should be 180 or more VDC)
75VAC
-.8 + .8 VDC black/white (should be 25 or more VDC)
8VAC
Note: Flywheel is on, but Not torqued down.
Flywheel looks good, the two magnets are in place and do not looked cracked.
I am at a loss about my readings...
Is the flywheel bad, am I doing the readings incorrectly, I'm using a fluke 12 digital meter?
Any help would be
Thank you.
-andy
Last edited:
