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Old 09 April 2014, 16:06   #1
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Suzuki DF15 Break in....

Hi all,
I just purchased a new Suzuki DF15AR and have not really broken it in as per manufactures instructions. Seemed to have missed reading that section somehow. I ran it on idle for about 10-15 minutes at home and then took it on a lake with a rev counter. Top revs according to manual is 6000.. I now have 6.6 hours on the clock and was careful not to exceed the 6000... Except once to see what WOT was .. 6120... My question is... Have I damaged my engine by running it on and off at between 3000 and 5600 most of the time? I feel a bit of an idiot but I just didn't see that section on break in. I'm just glad I did run it a bit at home first. I covered about 120km in 6.6 hours... Over three days... The remaining 3 odd hours of run in time I will be more careful of course. Any experts out there that could put my mind at rest would be much appreciated. Have I damaged it????
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Old 10 April 2014, 18:15   #2
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Is that a 2 or 4 strokes engine ? An engine is best broken in at long outings varying throtttle range from time to time with short wot bursts.

Throttle same for the remaining hours, after that go for a full 5/10 minutes wot spin as if you were stealling that combo. Try not to pass 6k if being alone.

Portable engines placed on light boats usually will delivered max factory stated wot rpm and sometimes even sligh passing them. Stay with that prop, as you start to put weight on boat rpm will drop accordingly.

If it's a 4 stroke must change oil/oil filter/lower unit gear oil after break in period.

BTW, which boat type is it ?

Happy Boating
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Old 11 April 2014, 04:38   #3
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Hi first off all thanks for your answer! I was beginning to think no one cared lol. It's a 4 stroke. I was told to bring it back for a service at 20 hours but he didn't mention the break in procedure in the manual. I have definitely done long trips of 25km each but as I said probably at too high revs to start with. My question was have I done permanent damage to my engine? I ran it in a bit at home in a tank but not under load... I have a Zodiac Classic MK2C 3.80m I clocked 34.3 kph once on WOT AT 6120 rpm. Most of time I ran at 4000-5500... I fitted a rev counter before first use.
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