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Thread: motor hop up

  1. #16
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    Quote Originally Posted by NosBoss View Post
    The only issue I have with them is the warped carb bowls that leak. Another issue that I need to solve this winter. Lol

    Take off the bowls and flip them upside down on a wooden table. Heat them with a heat gun while pressing down on the bottom of them with a block of wood. Sometimes have to put a shim under one end to get all of the bow out. Make sure to check the jets for tightness when done.

  2. #17
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    you can get replacements brand new or used too

  3. #18
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    Quote Originally Posted by phil blomquist View Post
    you can get replacements brand new or used too
    What kind of price are we looking at for the new ones? Where do you find them?
    1975 Hydrostream Ventura II
    1987 evinrude 200xp

  4. #19
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    part # 0398701 $29.80 from the place you were going to order the jets from or i got 1 from Al Stoker used for 20.00 if i remember right

  5. #20
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    Quote Originally Posted by NosBoss View Post
    This is an old thread brought back to life. I've been doing lots of research lately to figure out what I have. My '87 has mid bore carbs on it, but they are the ones correct to the year of the motor. The only issue I have with them is the warped carb bowls that leak. Another issue that I need to solve this winter. Lol
    OOOPS! Sorry about that! Like that's never happened before. My buddy is a looper fanatic and likes the 98 and later mid bores with the adjustable idle needles. I would kill for that at times with my Xflow!
    Paul Harrop

  6. #21
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    another question, i have a 1990 225 looper is it 2.7 or 3.0, has fat head gaskets and lower(even 90lbs) compression, is this motor worth doing any mods to , its clean and runs good , also its really quiet but looks to have factory relieved exhaust at bottom of mid . thanks

  7. #22
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    I had a 150 xflow before I got the looper. It was actually not near as temperamental as my looper when cold. The guy that had it before me must have had it tuned in perfectly. I kinda miss that old motor.
    1975 Hydrostream Ventura II
    1987 evinrude 200xp

  8. #23
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    Quote Originally Posted by bstream97 View Post
    another question, i have a 1990 225 looper is it 2.7 or 3.0, has fat head gaskets and lower(even 90lbs) compression, is this motor worth doing any mods to , its clean and runs good , also its really quiet but looks to have factory relieved exhaust at bottom of mid . thanks
    Your motor is a 3.0 liter. It is a a very good motor to mod. 90 lbs of compression is normal for that motor.
    1975 Hydrostream Ventura II
    1987 evinrude 200xp

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    thanks nosboss, i was worried about the compression being low , it runs good but need more speed, mabey jackplate .Click image for larger version. 

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  10. #25
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    What boat is it on? A jackplate would be a good start. There is always more speed to be had in setup. A common mod to the loopers is to get some heads from a 86-87 2.7 looper to up the compression and jet up accordingly. I would work on setup first though. Start a new thread and many people on here will jump in to help.
    1975 Hydrostream Ventura II
    1987 evinrude 200xp

  11. #26
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    Quote Originally Posted by bstream97 View Post
    another question, i have a 1990 225 looper is it 2.7 or 3.0, has fat head gaskets and lower(even 90lbs) compression, is this motor worth doing any mods to , its clean and runs good , also its really quiet but looks to have factory relieved exhaust at bottom of mid . thanks
    the thin .75 head gaskets should bump the comp up about 20 lbs.

  12. #27
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    thanks gorilla, motor has no visable corrosion, but i dont think heads have ever been off ,might try thinner gaskets this weekend . b

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