im having a couple of problems with my 260 merc. it has a 4 brl carb. points ignition. i changed the points, set the dwell and timing to the proper specs. when it is cold it starts easier but once it warms up it cranks alot longer then will finally kick over. what is the proper voltage at the coil with key on? cranking? and running? i jumped the 12 volt lead to coil by bypassing the the wiring harness plug and now it starts on one turn of the key. am i doing damage?
now the charging probs. above idle the voltage jumps to 15-16 volts. after running for 15 mins or so at 4000 rpm i brought it back down to idle then back up to 4000 rpm or tried. it kept breaking up above 2800 then eventually stalled at idle. is the overcharging cooking the batteries and coil making it stall and hard starting? i have the alternator out. what is the proper alternator to get to replace the one that was on engine.also when the engine is running under load and i hit the trim switch the voltage drops to 12 volts and the engine bogs alittle. is this normal? whats the problem if it is not?
any help will be appreciated
thanks
eric
now the charging probs. above idle the voltage jumps to 15-16 volts. after running for 15 mins or so at 4000 rpm i brought it back down to idle then back up to 4000 rpm or tried. it kept breaking up above 2800 then eventually stalled at idle. is the overcharging cooking the batteries and coil making it stall and hard starting? i have the alternator out. what is the proper alternator to get to replace the one that was on engine.also when the engine is running under load and i hit the trim switch the voltage drops to 12 volts and the engine bogs alittle. is this normal? whats the problem if it is not?
any help will be appreciated
thanks
eric
