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    order of fire older 65hp merc

    I have a 4cyl merc 65hp 74 and the plug wires have been taken off totally -how do I find out the correct order for them on the distributor cap.Is the first in the front -I am lost ...any suggestions?
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    plug wire type

    I have a 74 65hp outboard merc with cd distributor,and wanted to know if the plug wire you see in the roll -at the marine parts shop is the correct type to use on my motor(they are both 7mm but my older wire looks thicker).I also had to buy/install new screw in tips to go on the...
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    turning over dry

    if you turn over a motor a few times to see that it is not locked up and no fuel is getting to the motor after it has sat for many many months can that hurt the piton walls/rings?
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    compression reading

    What should the compression read on a 1971 mercury outboard 65 hp 4cyl?
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    any damage done? 3cyl

    What sort of damage can it do if you are running a older 4 cylinder on 3 cylinders(no choice-to get back to the dock safely)?<br />The 1st cyl read when running, and all 4 plugs in, only 60 the others around 120.But when all plugs out and turning motor over only 5 on 1st( the rest are ok).<br...
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    low compression ? fed up!

    What usually can cause you to lose all the compression in top cylinder after just running on water ?<br />Can it be related to bearings going out/ or a pre existing knock noise from either the reed or not good lubrication through the tube to the crankshaft?<br />Its and older 4 cyl 85hp...
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    timing question

    If your timing is 1 tooth off-76 merc 4 cyl -what will you notice different than if exact?(forward one tooth /and backward one tooth)
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    reed open

    If your engine has a sound like a reed is open what kind of symptoms/noise would it give you?<br />And if your lower bearings sound -when running -like they were dry or had been dry what trouble could you have from it if you cought it in time?<br />Is it just a matter of time until a rebuild...
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    rotor button

    What exactly can disintegrate there around the rotor button and will it cause a weak spark?<br />And what symptoms does it cause as far as the motor goes?
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    filter hook up /in out

    Does it make any difference on the external fuel cannister/ seperator if your line goes in and out on the same side(my top has 4 connections+side plug-each side has in /out),or is it best to go 1 side in-(arrow) and the other side out-(arrow)?<br />And does the filter size matter ,I saw one...
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    fuel seperator cannister

    fuel seperator cannister Is it a good idea to use a fuel seperator /cannister on the older mid 70s merc outboards?And due away with the inline filters?<br />And would you keep it between the tank and the primer bulb.
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    seafoam/rebuild

    Should you use the sea foam right after rebuilding the carbs/replacining all fuel lines or after you have run the motor for a while?<br />And can a slight difference in replacement fuel line size make a difference in how it runs?
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    linc/sync

    where do you go to find the linc/sync info?
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    fuel line/filters

    Is it best to go with as short a fuel line as you can and to keep the primer bulb as close to the tank as possible?And what about those glass inline filters(which I am not fond of)?<br />What can happen if you go from a shorter old fuel line to a newer longer line ?
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    type of plug

    what model # ngk plug would be best for the older74 merc engine 85hp (3743683#)?<br />The ngk buhw maybe?
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    boggs out/spark advance?

    I have a 74 mec 85hp(ser#3743683) outboard that starts to bogg out as I go into forward gear(and the shifter seems a bit tight).Just had the carbs rebuilt and fuel lines/pump replaced.Is the spark advance out of range since once in a while I can shift fast and it will not die out ,but 95% of the...
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