i have a johnson 99 model 9.9 2 stroke just wondered if they charge battery to run lights radio etc...., i had a older 85 model that did but not enuff to keep battery charged, any help would be appreciated
Is it electric start; if so then it should have a rectifier to somewhat charge the battery more like a trickle charger. Read battery voltage with engine off then crank engine and see if the reading is higher. If not, then you may have fried rectifier.