clanton
Rear Admiral
- Joined
- Jul 9, 2001
- Messages
- 4,876
Re: loss of rpm - Another question for Dhadley
I never did see a timing spec at full throttle 5000 rpm with the engine at operating temps. If you set the timing on cold engine and right after startup the pack is in Quick Start. If the timing is set in Quick Start mode it will be 6 degrees retarded. All timing should be verifyed at proper rpms for each engine, there are service bulletins warning about the method you used. The story about setting the timing back 4 degrees, is not always true, some stators will move the timing 4 to 6 degrees. If you back the timming 4 degrees and the stator shifts it 6 degrees, the you are 2 degrees advanced beyond factory specs. May not even be your problem. You check the ignition <br />system with peakread meter connected to primary side of coil, boat in water, full throttle until engine reaches 5000 rpma and boat is on plane. Have someone watch meter. Compare meter reading with service manual specs. Check the stator power coil output enging running.
I never did see a timing spec at full throttle 5000 rpm with the engine at operating temps. If you set the timing on cold engine and right after startup the pack is in Quick Start. If the timing is set in Quick Start mode it will be 6 degrees retarded. All timing should be verifyed at proper rpms for each engine, there are service bulletins warning about the method you used. The story about setting the timing back 4 degrees, is not always true, some stators will move the timing 4 to 6 degrees. If you back the timming 4 degrees and the stator shifts it 6 degrees, the you are 2 degrees advanced beyond factory specs. May not even be your problem. You check the ignition <br />system with peakread meter connected to primary side of coil, boat in water, full throttle until engine reaches 5000 rpma and boat is on plane. Have someone watch meter. Compare meter reading with service manual specs. Check the stator power coil output enging running.