Indicated RPM is low
in 2 Stroke Technical Questions
7 years ago
I have a Flying Inflatable Boat FIB w/ a 582 mfg in 2004. My problem is the tach has been reading low the last few hours. I have 146 on the hobbs. Full throttle shows 5000 rpm but I am getting normal T/O power. The curve seems smooth, idle is about 2000. I replaced the tach supplied from Lockwood and same cond. I checked the grd wire and got .3 ohms. A little backround info, my charging syst went out at about 75 hrs so I purchased a lith ion battery( which saved me 10 lbs) and charge it occasionally with a compatible charger. Any idea on how to check the output of the gray tach wire? Any help would be appreciated. Thanks.
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