05-12-2010, 03:26 AM
With only 30 hours on the engine you may want to run it through the break in process again. I have seen multiple motor manuals for Mercs and they all read pretty much the same. See below:
Straight out of my Merc manual for a 2002 EFI 60HP 4-stroke =
1) For the first hour of operation, run the engine at varied throttle settings not exceeding 3500 rpm's, or at approximately half throttle.
2) For the second hour of operation, run the engine at varied throttle settings up to 4500 RPM or at thrree-quarter throttle, and during this period of time, run it at full throttle for approximately one minute every 10 minutes.
3) For the next eight hours of operation, avoid continuous operation at full throttle from more than 5 minutes at a time.
Also keep in mind that if there is gas in the fuel tank it is very old and likely destablaized at this point. You will need to buy an octane booster, NOS is a good one to try. Even with that I would not run all the crappy gas at once, instead run it on a trip, then on the way home top the thing off with the highest octane gas the station has. Well that's all I can come up with.
Best of luck.
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Straight out of my Merc manual for a 2002 EFI 60HP 4-stroke =
1) For the first hour of operation, run the engine at varied throttle settings not exceeding 3500 rpm's, or at approximately half throttle.
2) For the second hour of operation, run the engine at varied throttle settings up to 4500 RPM or at thrree-quarter throttle, and during this period of time, run it at full throttle for approximately one minute every 10 minutes.
3) For the next eight hours of operation, avoid continuous operation at full throttle from more than 5 minutes at a time.
Also keep in mind that if there is gas in the fuel tank it is very old and likely destablaized at this point. You will need to buy an octane booster, NOS is a good one to try. Even with that I would not run all the crappy gas at once, instead run it on a trip, then on the way home top the thing off with the highest octane gas the station has. Well that's all I can come up with.
Best of luck.
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