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Thread: Mercury Mark 30 Timing

  1. #11
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    renegade 110 oc,,,7.00$ a gal...eek.... airport wont sell to us in a 5 gal gas can here,,,

  2. #12
    Sam Cullis Mark75H's Avatar
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    Quote Originally Posted by formeone View Post
    renegade 110 oc,,,7.00$ a gal...eek.... airport wont sell to us in a 5 gal gas can here,,,

    Just drive to the next one
    Since 1925, about 150 different racing outboards have been made.


  3. #13
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    hehehehe spokane isint that big.... besides have 175 cranking comp.. figure more octane better,,,,??

  4. #14
    Sam Cullis Mark75H's Avatar
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    You are right, there are only 5 airports within 30 miles of you to choose from:

    http://www.100ll.com/shownearbyfuel....450b7522b845cd

    http://www.100ll.com/showfbo.php?Has...450b7522b845cd

    175 with a good squish band my not require 100 ... you might be able to get away with some good stuff in the mid 90's

    My motors crank 275, but they are crappy old deflectors with smaller carbs and more restrictive reeds
    Since 1925, about 150 different racing outboards have been made.


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    ok thanks for all the help.

  6. #16
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    Quote Originally Posted by Mike444z View Post
    have a Mark 30 and the timing belt broke. Now im trying to get the motor back into time there are 2 timing marks on the flywheel one is at TDC the other is 0.235" before TDC, which one do i line up with the magneto timing mark? Thanks
    For posterity - there are two marks on the flywheel, the manual talks about both and is a little ambiguous on which to time to. The mark stamped with the 'O' on it is .235 before TDC, the other plain slash mark is TDC. Point the tiny arrow under the top cap of the magneto (it's cast on the top of a spline) at the 'O' mark, wrap that timing belt on and you are off to the races. Maybe literaly.

  7. #17
    Team Member DeanFHobart's Avatar
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    Quote Originally Posted by Ron Hill View Post

    Talking gas! IS there any good gas? What do outboard racer's use??
    VP makes various formulas of racing gas, with lead, without lead, with or without ethanol and various octanes. Call VP and find your nearest dealer….. all of them should be on their web site. Check it out.
    Dean Hobart

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