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  1. Replies
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    Again, thread may be a bit old but I'd like to...

    Again, thread may be a bit old but I'd like to give my stance on the 100 view car crash.
    From my understanding on propellers, it is like a screw. The pitch varies the amount of travel, the gear...
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    I've ordered a new set of race reeds from CCM, ...

    I've ordered a new set of race reeds from CCM, looking forward to them arriving and hopefully will solve the new problem of very noticeable power loss. If not it has to be lack of power from 100 psi...
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    Sticky: Good read, and great work. I use to play with...

    Good read, and great work. I use to play with jetskis and the power pipe was always one of the best power improvements you could do to the 2 stroke. I have been thinking if it's possible to squeeze...
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    Well I tested the boat again with the reed...

    Well I tested the boat again with the reed stoppers bent back to original postion. Slight improvement of power down low. I'm thinking these reeds are useless as some are only just sealing on the...
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    Thanks mate, I'll give him a call and order a set...

    Thanks mate, I'll give him a call and order a set of new reeds. Much appreciated.

    Zul8tr, wow thanks for the direct link, what a great read. Very interesting thread on oils. Reminds me of the...
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    Gaskets in lower leg top of exhaust tuner...

    Gaskets in lower leg top of exhaust tuner replaced and on the tap, a little bit of water. Too for a test run and plugs came back dry no water. Flushed on the tap with fresh water and bottom plug was...
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    Update.. bottom seals replaced, the motor has had...

    Update.. bottom seals replaced, the motor has had all new original gaskets replaced also. Tested on the tap, the bottom cyc was still getting heaps of water. The point of entry was not the bottom...
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    I'll have a read on that thanks Zul8tr, no I...

    I'll have a read on that thanks Zul8tr, no I haven't seen that thread. Plea see e post a link if u can.
    So it was mentioned that I should check and or replace the bottom crank seal. When I...
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    Checked the reeds, they are ok, not broken and...

    Checked the reeds, they are ok, not broken and sealing pretty good.
    Called a boat mechanic and booked it in. I have to bite the bullet and leave it to the experts. Some things although seem...
  10. Replies
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    Looking at the pics again, notice how bad the...

    Looking at the pics again, notice how bad the misalignment of the gasket is on the bottom piston. This could be causing the failure too as it seems to be most misaligned on cyclinder #3. Lower edge....
  11. Replies
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    Sorry missed the replys on last page. Zul8tr ,...

    Sorry missed the replys on last page. Zul8tr , TCW3 oil Castrol brand and premium 95 octain. 50:1 with a slight drop more for a little more lube.
    Dragracer checking my photos again to look for the...
  12. Replies
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    Thanks Dragracer, yes I remove the powerhead to...

    Thanks Dragracer, yes I remove the powerhead to reach the bottom two bolts. Perhaps your right and I need to torque them up to at least 20-23 lb. I think 25 to 30 could be too much.I lightly sanded...
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    Thanks Stephen. It so hard to give advice when...

    Thanks Stephen. It so hard to give advice when you can't see it or know much about what's going on. Appreciate the help.
    The base gasket is brand new. The adapter plate every time I pulled it off...
  14. Replies
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    Well got them all out bar one. Took to the...

    Well got them all out bar one. Took to the machinist to remove the last bolt as it snapped off flush. Heat and vise grips worked a treat.

    Assembled the motor today.
    Bad news. Water still...
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    http://i159.photobucket.com/albums/t156/ice_spy/CM...

    http://i159.photobucket.com/albums/t156/ice_spy/CM150830-09033306.jpg
    Port misalignment pic
  16. Replies
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    Cool, thanks for the good advice from all. Slow...

    Cool, thanks for the good advice from all. Slow and steady should win the race. I buggered a head bolt, drilled and tapped a new thread that was off center and basically butchered it. Beyond a...
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    Bore and pistons look ok, no scores or grooves...

    Bore and pistons look ok, no scores or grooves that I can see, only pollished but no cross hatch left. I will post some pics up tomorrow morning. :)
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    Is approx 105 psi on all 3 cyclinders too low...

    Is approx 105 psi on all 3 cyclinders too low compression? Could the water in the cyclinders have caused damage that lowered the compression?
  19. Replies
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    So after some Google reads, is the best method to...

    So after some Google reads, is the best method to remove broken studs that are not flush with the surface to weld a nut on the end of the broken stud and shock them off slowly with some spray, any...
  20. Replies
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    Ok so I only snapped 7 out of 14 bolts... that's...

    Ok so I only snapped 7 out of 14 bolts... that's a good start. Lol. Applied heat and inox spray but they were definitely not coming out easy. Didn't want to apply too much heat to the plate. At...
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    Ok so as I have another spare head gasket I...

    Ok so as I have another spare head gasket I pulled it to be sure of good seal. These are the pics. It seems there was very good seal and gasket glued / stuck to both surfaces. Comp test showed...
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    I really appreciate your advice to help me. So...

    I really appreciate your advice to help me. So far no one else can/ has. Even marine workshops.
    Could I do a compression test to attain if the head gasket has failed again or if not the water then...
  23. Replies
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    No water in fuel, so it's possible if the side...

    No water in fuel, so it's possible if the side cover exhaust plate gasket has failed this could allow water in the cyclinders ? Also if the base gasket failed this could also allow water in the...
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    Tohatsu / mercury 3 cyl water on plugs.

    I have a tohatsu md50, 2003 3 cyclinder. Motor was running fine for approx 3 hrs then blew a head gasket. Possible cause was a blocked thermostat with a bit of plastic lodged in there.
    Gutted...
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    Mercury's the motor Carribean's the boat

    Old classic, Carribean hull with an old Johnson 75hp electric seahorse. Those boats had some style back in them days.
    http://i159.photobucket.com/albums/t156/ice_spy/20150808_143741.jpg...
  26. Thread: finished pics!

    by ice_spy
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    Great work. I like the paint scheme, goes with...

    Great work. I like the paint scheme, goes with merc and windscreen in black too. Looks fast just sitting on the trailer :)
  27. Replies
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    I ran one of these boats around my waterway for a...

    I ran one of these boats around my waterway for a few years. It came with a 20hp. Upgraded carb to 25hp but wasn't much better. Added power trim and the boat was much mlre fun and controlable. Still...
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    tohatsu 50hp tacho installation

    Help needed.
    Having some trouble finding the tacho signal wire to run a marine tacho Set to 6 pole.
    Can anyone tell me what colour wire and it's location please?
    My motor is a 2003 tohatsu 50hp...
  29. Replies
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    That's a mean looking tohatsu ! Powerboat,...

    That's a mean looking tohatsu !
    Powerboat, sorry I meant 91 lower octane might be better suited.
    I think it looks more like water but. What's the silicon(?) around the head ? Was it used with...
  30. Replies
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    I'm no expert but here's my suggestions. 30 psi...

    I'm no expert but here's my suggestions.
    30 psi extra compression, +98oct might be causing pre ignition. Have you changed the timing? Maybe 91 ron would be better, can you hear pinging up top, ...
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    I would try Ebay, you guys seem to have all the...

    I would try Ebay, you guys seem to have all the parts available in the US.
    On the note of exhausts and tuning, why do 2 stroke outboards have a simple flared tube exhaust and housing and not develop...
  32. Sticky: EVINRUDE OUTBOARD WANKEL's Based Engine:...

    EVINRUDE OUTBOARD WANKEL's Based Engine: https://youtu.be/9bgsrJNMouE
  33. Sticky: Wow ! What a read. I was glued to my seat reading...

    Wow ! What a read. I was glued to my seat reading this.
    Its sad one of the only alternative engines to piston and crank have had such a hard time from others, rather than a joint interest to...
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    Your props are legendary around the world. stand...

    Your props are legendary around the world. stand proud Mr Ron Hill, and wish you a great birthday.
  35. Started out with polyester on my jetski days....

    Started out with polyester on my jetski days. Cheap and nasty that stuff. Rebuilt a 10ft mercub tunnel with vynalester and it stuck good. But after using epoxy, although expensive, I will not use...
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    I'm sick of people standing up for these people...

    I'm sick of people standing up for these people that are a threat to society. A threat to way we live.
    I'm sick of being called a racist, bigot, have some phobia about them. I've had to label...
  37. Replies
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    Remember the further you go back the higher the...

    Remember the further you go back the higher the water rises from the bottom of the transom, therefor motor must be jacked up with setback. The add on cav plate will create drag, unless by the looks...
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    It's awesome Glenno, the twin carbs certainly...

    It's awesome Glenno, the twin carbs certainly has the wow factor. Thats what I was thinking about too, twin exhaust pipes out the back. It would scream. Lol. Fun factor build 10 out of 10.
    You...
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    Dual carbs will always suck more juice. However...

    Dual carbs will always suck more juice. However your results seem to show an improvement with more fuel entering the motor. Air speed has a lot to play with intake lenghts, you may want to try some...
  40. Replies
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    This is what I'm after Ron, I have a Merc chopper...

    This is what I'm after Ron, I have a Merc chopper II 18p re splined to suit mercury/ tohatsu 13 teeth, maybe you would be interested in some sort of trade ? ...
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    anyone? 1234 or 5 ?

    anyone? 1234 or 5 ?
  42. Replies
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    You had asked me to reply to a private message...

    You had asked me to reply to a private message you sent me on Friday the 13th. I did with no reply. I thought perhaps it was a black Friday joke or just my bad luck. Lol. No really I understand you...
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    Interesting read, not often racers give you the...

    Interesting read, not often racers give you the inside knowledge of years of experience. Would have never thought about a surface prop on a tunnel hull falling into a hole either from backing off or...
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    Ron, Is there any chance of still winning a...

    Ron,
    Is there any chance of still winning a free prop left ? Or has this comp. come to an end ?
  45. Replies
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    1.Prop hub 2.Couldn't just press out so was...

    1.Prop hub
    2.Couldn't just press out so was drilled out.
    Prop is being loved back to glory by Ron.
    3. 31 yrs in the prop corroding and another 31 mins drilling and pressing out.
  46. Replies
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    Wow ! What a beautiful boat. Well done. I really...

    Wow ! What a beautiful boat. Well done. I really like the seats up the front, classic. I bet it turns a few heads out on the water. The moment it gets on the plane for the first time......priceless :)
  47. Replies
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    70 carbs will drop bottom end power. Not enough...

    70 carbs will drop bottom end power. Not enough air/fuel speed at lower rpms so the mechanic tells me.
    Welding the crank, plan to rebuild also, as once welded, the crank is throw away item....
  48. Replies
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    Congratulations Chairman ! That is one very...

    Congratulations Chairman !
    That is one very nice looking signature prop.
    Looking forward to hear how the laker 14 performs :)
  49. Replies
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    The excitement of finding out 'The Winners' is...

    The excitement of finding out 'The Winners' is killing me.

    It's like waiting to see if Santa brang you that toy you wanted when u were a kid.
    Or like not knowing if the Mrs is going to have a...
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    They would make a great novelty cast in soap :)...

    They would make a great novelty cast in soap :)
    (Washed myself with a 11" cleaver this morning)
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