MWatts9728
Cadet
- Joined
- Sep 17, 2010
- Messages
- 10
I picked up a 1973 crestliner recently the boat is solid & runs great but it also got a laundry list of troubles. Monitoring the engine is important and the Tachometer isn't functioning properly. I need help! I assume the tach is operable but it reads all wrong. At idle which sounds like a normal rpm range for idle it reads between 4 & 5,000 rpms. I assume the tach is set wrong. I have seen from other post that 6 should be my normal setting. Assuming my tach is most likely set to 1 (4,500 rpm current reading / 750 normal operating range = 6) How do I adjust it? I dont see anything on the back of the tach under the dash. At the bottom of the front partcially under the bezel it reads "Auqameter FS074-11 idst corp". The outboard is a 1971 Johnson 85 ESL-71A. Oh 1 more thing that may effect the situation the motor has been converted to electronic ignition. Any advice? I have no experiance with Tachometers.