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  1. Replies
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    there u go been reading these replys and knew...

    there u go
    been reading these replys
    and knew a dealer or a merc historian would come up
    and tell u what u had
    as i stated im not a historian
    definately belive austin and schiada on knowing...
  2. Replies
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    that is a 2.4 bore and the original 225 type...

    that is a 2.4 bore
    and the original 225 type ports
    1 ex 2 transfers 1 wide boost

    2.4 bore with small vertical 5 pedal reeds
    who would uf thunk
    never seen it
    merc was always tryin things ...
  3. Replies
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    dont doubt the sale does say 2.4 on ticket when...

    dont doubt the sale
    does say 2.4 on ticket when 2.4 hasnt been released yet
    but on ticket and motor tag
    motor ids starting with 48------ to 50------according to mercury id list
    would be a 175...
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    enough pics,,,,,no disrespect but,,,, u have a...

    enough pics,,,,,no disrespect but,,,,
    u have a pieced together motor
    as i original thought,,,,,but trying to get benifit of doubt to ya,,,
    without pics of the powerhead,,,
    is older 1978 175 by...
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    that is a vertical reed motor,,,,,,,,,,,,,, all...

    that is a vertical reed motor,,,,,,,,,,,,,,
    all the big hp motors are horizonal
    the carbs are of the older 76-79 150-175 by #s and having a choke,,,,,,

    when mercury started the 1 piece drop on...
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    model ys

    like most told u
    the 1st v6 mercs from 76 up were 2litres
    im no vintage buff ,,,dont know exactly what merc did when
    but the 225 2.4s were 80 -82
    but maybe with the offshore housing on there...
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    2 stroke

    the 4 stroke sb chevy can go with more timing advance
    its a 4 STROKE
    have a full stroke for piston to cool
    have valves to close precisely,,,,,
    2 strokes are more non efficient
    lots of raw wasted...
  8. Replies
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    timing retard

    timing must be retarded after 6,000 rpm
    on any motor 2 or 4 stroke,,,,,,,,
    especially 2s cause of the burn on every stroke,,,,
    piston does not get a stroke to disapate heat as in a 4 stroke motor...
  9. Thread: thoughts

    by john miffco
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    dont get it,,,,

    that pic of a piston you show is NOT the same melt
    as the piston this thread is about
    look at the 2,,,,,,,,,,compare,,,,,,,,,,,

    what i described in detail earlier in this thread

    a piston...
  10. Thread: thoughts

    by john miffco
    Replies
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    6,794

    yep

    makes more sense with more info
    and not guessing,,,,,,,,
    could tell cyl was replaced but not how long ago

    when rebuilt the sleeve was improper installed
    thats why it blew the 1st gasket
    then...
  11. Thread: thoughts

    by john miffco
    Replies
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    6,794

    water,,,,,,,,,,,

    water got in cyl from blown head gasket
    piston top away from ex is grey smoother melted,,,had water on it
    from lack of water is a cleaner (more rough or jagged )melt
    if look at top of cyl where...
  12. Replies
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    compression

    the reason i o ringed the cylinders and machined the pistons was to remove
    the head gasket to get tighter tolerances
    and also to be able to use universal heads for different compressions

    this...
  13. Replies
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    your correct fred but there also is another way...

    your correct fred
    but there also is another way to achieve the desired band for max power

    i have a lot of yrs manufuring my own parts for when i played with
    unlimited merc v6s in the 80s and...
  14. Replies
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    carbon build up

    the squish band is between the flat area on the head and the piston top
    should not build up carbon,,,,,,,
    this is where lots of power is made on a 2 stroke
    when a motor is properly blueprinted to...
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    no problem

    we all have done it
    especaily at the races site doing a piston swap
    most common lubricant on hand at a race site is wd40
    so when used to oil cyl with ball hone,,,,,
    found out the residue does...
  16. Replies
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    chrome bore

    when replacing the rings on a chrome bore motor
    just need to set block in a varsol vat and use a red or brown scotchbright pad
    to remove the glaze only
    same as nicasil,,,,,,,,,,
    both metals are...
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    thank you

    i have 20yrs of outboard racing using all of the other brands
    so also all i use is weldon
    super high volume
    and pressure stays consistant
    more expensive but cheaper than a rod hanging out of...
  18. Replies
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    fuel

    fuel psi is depending on pump you use
    and no less than 80 gph
    when using an automotive pump as holley(red is the bare minimum),ect
    stagnant pressure NO less than 7,,,recamend 8
    cause automotive...
  19. Replies
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    pumps

    you want to stay away from pulse pumps
    not enough volume as fred indicated

    blade slingers work the best for low pressure and high volume
    mercury uses the holley red pump for hp carb motors ...
  20. Replies
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    its a flats boat

    from a builders point of view
    its a true flats fishing boat
    not a high performance speed boat or a semi shallow running bay boat
    these 2 hulls have natural bow lift
    a true flats has very minimum...
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    15 or 25

    well ron you would know better than any
    about the 25 and cub combination,,,,,,,,
    i thought it was the A/J 15 that they made then that was used
    i know they had it on the water mouse
    so if it was...
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    speed costs

    as stated the hull was designed for a 15
    20-25 mph for a childrens learning class,,,,mini mouse/mini mini gt type class
    most were run with 25s as a play boat 25-30

    can make it run fast with the...
  23. Replies
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    cub

    the cougar cub was designed for the 15 hp motor,,,,25 max
    mercury had a program with the 15hp for a while with this hull in the 80s

    sides are short,narrow width,,sponsoms are short,,,compression...
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    yep

    my point i was trying to get across
    we want the helmet to flex to a point to absorb the impact
    and not fail,,,,,
    if put on enough paint,,,,then the wrong paint,,,less flex
    barsal/newton test will...
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    paint

    lets throw in some disclaimers to cover our asses,,,,,,,,,,,
    thats what the whole paint thing is,,,,,,,,

    any class that has a snell approved helmet required
    is a class that accidents will...
  26. Replies
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    2 stroke

    most tachs are made for 4 stroke motors
    which spark every 2nd revolution
    so in turn a 2 stroke sparks every stroke

    so most of the time
    setting a tack for 2 stroke,,,,,,,, double the pulse
    the...
  27. pipe

    2 into 1 firing 180 deg apart
    saves weight
    and mainly the scavaging effect occures
    the exhaust flowing out from previous fire
    actually sucks the exhaust coming out
    ( like a sand blasting air...
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    reeds and blocks

    i agree with sams analogy of the reeds

    in reality the factory steel reeds have less flutter
    has more cranking /base compression because they seal better
    main positives going to composite reeds...
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    wh 13

    there is wh 13 carbs
    on jetting ,,,,,,,,,
    as stated stock 200 with nosecone and motor jacked up 80-82 is in the ballpark
    with motor up the load is released on the motor some and will be turning...
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    jacket

    lifeline and security
    are the main 2 capsule jackets that apba inspectors are used to seeing and importantly ,,,inspecting
    other brands get looked at harder for the tags minimum requirements
    and...
  31. Thread: sst 120 ?

    by john miffco
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    2,796

    120 boat

    barry is right on with buying a turn key rigg for a newcomer to class
    there is a lot of old hulls (pre 2000)out there for sale 2,000=5,000
    sounds cheap,,,,but by time you aquire...
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    cool stuff

    this 1 here is made for the omc crossflow
    i was around scott back then when he worked it

    its main downfall was the crossflow turned up around 7,500
    and the main boost came in around 5,500=6,000...
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    land and sea turbo

    any body out there remember the land and sea turbos that they made for o/bs?
    or ever seen 1 run?
    i went out to scott eines shop the other day
    if anybody remembers him he used to race mod vp in the...
  34. Replies
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    timing

    whenever a motor is high ported,,,,,or rpms are than higher than the factory
    recommends the timing needs to be backed off,,,,so not to detonate the piston tops,,,,
    factory timing is for factory...
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    claimer rule

    your right bill,,,,,
    the claimer price is 2,600,,,so just taking a 140 and doing labor work to it
    no upgraded parts,,,,kick ***,,,,,get claimed and make money back for time
    and have fun for the...
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    intake tracks

    bill
    you hit the nail head dead on,,,,
    here we race the tri hull class,,,100ci crossflow only
    the best motor is the omc for the class

    and these guys have tried everything,,,,,,,,,,,
    the 1s...
  37. Replies
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    crossflows

    you can cut the piston skirts,debur intake track,D shape the ports,raise ports depending on what block you have,use newer ignition,lighter forged pistons,cut heads,open ex housing,carb work with...
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    mulinari

    got to say,,,,,
    that that is an "awsome job" that was done on the boat,,,,,,
    it looks great,,,,,
    i bought a hodges 140 boat a few yrs back,,,
    that has the same non capsule ,,,cockpit,,
    never...
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    web site

    i have been pulling up the site since the beginning of the champ series
    since the new site was brought up ,,,,there has been numerous times it would not come up,,,,server not found
    had problems...
  40. kankakee 2006

    champboat series also has a tentative schedule for 2006 at kankakee
    for sept 2=4
    champboats only is listed to be there

    there were 4 o/b drag boats there running at 2005 event for an exhibition...
  41. kankakee 2004

    i was at kankakee along with tabara in 2004 and 2005
    and i race the champ series with page
    this thread started from page getting a small check from mod u

    as been said boat count was low in 2004...
  42. your right

    yes you are right on both replys

    1) we race besause we love the sport!!!!!!!!!!!!!!!!
    and that is why boat racing is where it is today.

    i wish it could make a profit,,,,,
    i need it to make a...
  43. kankakee nationals

    i went to the kankakee nationals also,,,,,,

    the 1,500 spent for the weekend is about the average money
    that every one had to pay out for the event

    which is what we spend to travel to any race...
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