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  1. R

    9.9 and 15hp differences.

    My hobby is rebuilding stuff and I have been doing Evinrude/Johnson small outboards for about four years now. My question is this. Peope keep asking me if they can bolt a carb onto a 9.9 to make it a 15 and I keep telling them no as that is what I read somewhere. Anyway, what's the score? How...
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    1978 Evinrude gearbox oil leak

    My 1978 Evinrude 15hp gearbox leaks. When I run it up oil leaks out the back of the prop. I need some kind of tool to pull the gear box out. I have a spare gearbox unit with exactly the same problem. While apart I'll replace both the seal under the water pump and the gearshaft seal at the same...
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    Yamaha 4hp 4 stroke

    I have just gotten a 4 or 5 year old Yamaha 4hp 4 stroke that has no compression. I am gonna pull it apart soon to find the problem. In the meantime, I am hunting for a gasket set. I was recently quoted NZ$250, which soulds a bit steep. Is it?
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    Spark plug operation

    Someone today was trying to tell me that those plugs that are non-adjustable, i.e. with the central dot tuple electrode and no bendy bit, operated by sparking to the piston. I told him no way, that they spark to the outside edge of the plug and that if what he said was true it'd burn a hole in...
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    Evinrude 2hp - points timing

    I just put new points/condensor on an Evinrude 2hp. The manual just says to set the gap at the highest point on the lobe. Well, easy to say, but kinda tricky to find the highest point. What is marked is a 10 degree or so area with TOP written in it. That is 'about' the highest point so that's...
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    Prop types for RIB

    I have been reading thru the prop area and am still curious. I have an 2.7m RIB and various small engines. My 2hp Johnson is way too slow, and my 4hp Evinrude is just not quite fast enough. My 15hp Evinrude is too powerful. I guess I need an 8hp to be about right. However, becuase my RIB is so...
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    Impellers - Engine IDs

    I have just acquired several water pump impellers along with some other stuff. I have been searching the internet to find out what they are - I can find sites that sell them but have no idea what engines they fit. I know a few boaties where I live in NZ and if I could ID the impellers I'd know...
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    Evinrude 2hp Steam Engine

    OK, I'm fairly new to outboards but have now rubuilt three 2hps and was beginning to think it was easy until today, on my 4th. Basically, someone put a small telltale pipe on the exhaust plate. I rebuilt the engine, cleaned all the insides, new gaskets, new pump etc, and blocked off the telltale...
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    No sparks on 115hp

    My 1970 115hp Johnson has no sparks. No power seems to come out of the single coil on the top of the motor that feeds the distributor under the flywheel. (I connected a strobe to the coil to see if there were any pulses). However, the coil registeres 3 ohms on the supply side and 250 ohms on the...
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    115 Johnson - 1970 - no spark

    I acquired a partly dismantled 115 Johnson and have been sorting it all out. Model number is: 115ESL70D - I presume that means 1970. It is now mostly together but does not spark. The manual I have covers various models but not in the greatest of detail. Mine has Powerpulse Breakerless Ignition...
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    Yamaha 225 V6 Excel

    Today I bought a Yamaha 225 V6 Excel in bits. Most of it is there, and I think I know what is missing. I have rebuilt a few smaller motors and this is my first biggie. The owner said it was running rough before dismantling and that a mechanic told him the cause (I presume they went thru all the...
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    Evinrude 15hp Powerpack

    I have recently acquired two old half dead 15hp motors and want to revive at least one of them. Trouble shooting on my blue one (AE15BACDE) I think the powerpack is knackered. No sparks and both coils and the stator seem OK - resistance check etc as per manual. So, I go over to my white one...
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    Con rod bolt torque - 2hp Evinrude

    Anyone know what it is?
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    Online manuals

    Anyone know of any interesting links. I have read thru the 15hp Evin/Johnson website listed herein. I have links to lots of online motorcycle manuals or websites detailing particular models, so how about boats - I am newish to boats and am getting into rebuiling engines, mostly small...
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    Sparkplug Info Website?

    Does anyone know of a website that tells you what engine requires what plug? I found a similar one for cars, but not for boats.
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    Evinrude 2hp

    I just replaced my top crank bearing with an automotive caged bearing that fits perfectly. Not as many rollers and easy to deal with. Anyone else done this? Am I asking for trouble? The bottom bearing is of the original type - messy rollers. I kinda made a puller to get the bearings out but one...
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    Evinrude 2hp conrod bolt torque

    Anyone know what the torque setting is for the conrod bolts on my late 1970s Evinrude 2hp?
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    Yamaha 2hp Carb needed

    I got a 2hp Yamaha for NZ$100 and am doing it up. The main bearings have little cutouts - are they essential, or can I use an automotive bearing of similar size? I can't see why not. It's already starting to cost more than it's worth but I do like to do things properly, just for hte sake of it...
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    2hp Evinrude

    My first post - I recently acquired 6 of these in bits and have just rebuilt my first one. Compression is 90, Spark is fine, Points have been cleaned up, Carb has been cleaned, etc. Trouble is, it'll only start in the FAST position and then it runs for 3-4 secs and stops. Sounds like no spark...
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