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  1. #1
    Member MidniteBug's Avatar
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    250 SHO Break-in

    I just bought a new Skeeter zx20 with the 250 SHO. I have not started the break in process yet but plan on doing it per the manual. Is there any tips/advice while breaking in this motor?
    2013 Skeeter ZX20 250 SHO

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    #2
    Keep trim all the way down, work it hard to heat it up in hours 2-10. Watch oil level, if it rises at all, change it out (use Yamaha Synthetic) early. Don't idle around at all in first 10 hours.

    Mine's coming up on 50 hours this season, really love this motor, you will too!

  4. Member MidniteBug's Avatar
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    #3
    curious why you want to run it hard in hours 2-10?
    2013 Skeeter ZX20 250 SHO

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    #4
    I'd go by what the book says to do and if calls for Yamalube like mine does, I'd use it only.

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    #5
    Run by book but keep trim down to load motor and heat it up. I changed my oil around hour 11 as it made a little oil along the way.

    I kept the oil level right with on of those suction units. I would guess it came up less than a quart in first 11 hours. Then very little before 20 hour service.

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    #6
    Thanks. Is there a way to drain oil or do I need to buy an extractor?
    2013 Skeeter ZX20 250 SHO

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    #7
    Extractor needed

  9. Member MidniteBug's Avatar
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    #8
    Thanks. I will pick one up.
    2013 Skeeter ZX20 250 SHO

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    #9
    straight from my owner's hand book
    ( 1 ) first 10 mins. run engine at lowest speed, fast idle in neutral is best.
    ( 2 ) next 50 mins. do not exceed 1/2 throttle " approximately 3000 rpms" Vary engine speed occasionally.
    ( 3 ) next 2 hours, accelerate full throttle onto plane, then reduce engine speed to 3/4 throttle " approximately 4000 " rpms. run full throttle for 1 min. then allow 10 mins. of operation at 3/4 throttle or less to let engine cool.
    ( 4 ) remaining 7 hours, run engine at any speed, however, avoid full throttle for more than 5 mins. at a time.
    ( 5 ) after 10 hours, operate engine as normally.
    I got all this infro. from my 2009 Yamaha Owner's Manual ( 250 HPDI Series II )
    hope this is a little help.

  11. Member MidniteBug's Avatar
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    #10
    Yah mine is different. I have the Sho four stroke.
    2013 Skeeter ZX20 250 SHO

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    #11
    There is no great science to the break in on a SHO. Just use a little common sense. In the first few hours of operation take it easy. As in the first two try not to idle very much. 2 to 6 some WOT but not for long periods. After that just run it. I broke my first one in by the book it had a rising oil level all the way up to when it blew up at 54 hours. The next power head has been flawless no rising oil level and runs great. I really think there were some different ways the factory built some of the early engines and it explains why there are so many different stories about if one engine had issues and others didn't.

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    #12
    Quote Originally Posted by rzone View Post
    Extractor needed
    you dont need an extractor... there is a drain plug under the side cover

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    #13
    Running it down is to put heat in the motor and let the rings seat .

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    #14
    No matter how far you trim it down and run it the thermostats control engine temp. If you have engine data on your gps unit watch engine temp you will see. Mine runs about 142f trimmed up or down.

  16. Member MidniteBug's Avatar
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    #15
    I ran the motor for the first time today and did 2.5 hours of break in... incredible motor... I had a smile on my face the whole time.
    2013 Skeeter ZX20 250 SHO

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    #16
    I knew you would like it! they are great motors.

    Quote Originally Posted by SkeeterBlackBear View Post
    I ran the motor for the first time today and did 2.5 hours of break in... incredible motor... I had a smile on my face the whole time.

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    #17
    Quote Originally Posted by SkeeterBlackBear View Post
    I ran the motor for the first time today and did 2.5 hours of break in... incredible motor... I had a smile on my face the whole time.
    dont be freeked out by how little water flows from the pee hole. its normal.. I love mine too but I bet you made oil even for that little bit of time. Don't worry about it. just take a little off the top and keep going. Just make sure you change it out at 10 hours. And next time put it on a ranger.. lol good luck..
    Live life, its the only one you get!
    You don't scare me.

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    #18
    Quote Originally Posted by happy2bfishin View Post
    dont be freeked out by how little water flows from the pee hole. its normal.. I love mine too but I bet you made oil even for that little bit of time. Don't worry about it. just take a little off the top and keep going. Just make sure you change it out at 10 hours. And next time put it on a ranger.. lol good luck..
    dont get me started on the ranger thing.................I have 4 hours on the motor now and it has not made any oil yet
    2013 Skeeter ZX20 250 SHO

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    #19
    Quote Originally Posted by SkeeterBlackBear View Post
    Thanks. Is there a way to drain oil or do I need to buy an extractor?
    There is a 14 mm drain plug under the midsection on the right side when standing behind the boat. Just a few allen bolts to get the midsection cover off. It is going to come in a hurry when you take the drain plug out...fyi
    Attached Images Attached Images
    Ranger, Stratos, G3, Seafox, Tidewater, BlackJack

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    #20
    sweet deal Thanks
    2013 Skeeter ZX20 250 SHO

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