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    Pretty overpropped.

    I recently repowered a 18ft center console aluminum boat (brand and any model numbers have been painted over). Installed now is a used, but in great shape 2004 Johnson (Suzuki) 70hp 4stroke. It came with a 13x19 3 bladed prop. First run, the motor runs amazing. Using a BRP engine check tach...
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    Old to new-ish Johnson repower questions.

    Thank you KevinM207! I've squirreled away that wire diagram for future use. Yea I ended up bolting it to the block, where another ground point is. It doesn't seem like the factory place, but the outboard starts and runs fine with it there, and I am able to route the cable out of the way of...
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    Whats this beside the telltale?

    Thanks. Just did some reading, after knowing what to call it. Makes sense to me now. Cheers!
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    Whats this beside the telltale?

    2004 Johnson 70 4stroke. The telltale on this is a little cap (right, on the pic) with a hole that you can direct the stream where you want it to go. But beside this is a little open rubber tube (left) that shoots air/exhaust from the outboard when running. Can anyone tell me the purpose of...
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    Old to new-ish Johnson repower questions.

    Little bump. Pretty quiet...
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    Engine cooling properly in the lake, overheating with muffs!

    What size and year of outboard? I have had several in the past that did not do real well on muffs. Little or no tell-tale stream. Put it in the lake, or in a barrel, and it works great.
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    Old to new-ish Johnson repower questions.

    I have a 16ft center console boat with a old 1988 Johnson 88hp that had a couple pistons come apart. I am repowering with a 2004 Johnson (suzuki?) 70hp 4-stroke. Motor is mounted, and its onto wiring. I am wondering the normal ground point is for the battery cable on this outboard. The...
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    1999 Johnson 25 carb help req.

    Well the verdict is in. It worked an entire weekend camp/fishing trip. About 2 tanks of fuel through it and still going strong. Which is good because my replacement carb still isn't here yet. I still honestly do not trust it enough to go out somewhere remote, with mine being the only boat...
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    Motor wont start....help please

    Ah ha! I overlooked the year. Very good point.
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    Motor wont start....help please

    Something to more to check, after you have confirmed spark and fuel, is the flywheel key. Partially sheared will throw timing off enough you can't get it to run right. Fully sheared and it won't run at all, but you will have spark, just at the wrong time. Get your fuel sorted out first. A...
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    1999 Johnson 25 carb help req.

    Now it was back to my makeshift pin press to overdrive it through the carb body so I could then add some sleeve retainer to try and make this tube stay put. I added the retainer goo, drove it back flush, and then quickly cleaned off the excess, and blew shop air through the tube to ensure it...
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    1999 Johnson 25 carb help req.

    Ok, a bit of an update. The carb is several weeks out, so it was time to attempt a temporary fix so I can still use the outboard while I wait for a new carb. The design of this carb lends itself to pressing out the idle pickup tube. You could not do this on the vast majority of carbs, just...
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    1999 Johnson 25 carb help req.

    Yup, every part in that kit looks the same as the carb I have. No going back now, I just ordered it!
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    1999 Johnson 25 carb help req.

    I bumped down 2 years to 97, and pn: 0439378 sure looks exactly like the carb I have, and it fits a 25. The 1999 25J carb is the same pn again. The bonus is that it is still available, for a decent price ($165 US). I do not know for SURE if it is the same, but I think I'm going to take the...
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    1999 Johnson 25 carb help req.

    Faztbullet - That seems crazy to me, but plausible, since this motor is new to me and I do not know its history. Prop on it looks newish, and at WOT the rpm is 5850 which I know is a bit high (should be 5500 max). I just assumed the previous owner had a heavier boat. I might look for a more...
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    Bad things happened today. 2001 35HP Johnson

    I figured I would update this. I forgot all about this thread, lol. 1 cylinder bored and honed, the other 2 left completely alone. Reassembled with 1 new cylinder and the thing worked beautifully. I still do not know what caused it to self destruct, but I have read that the 3cyl 25's and...
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    1999 Johnson 25 carb help req.

    Ok, so I was out last weekend and out of nowhere the outboard quit on me when I slowed down, getting close to shore. Pulling it over I have no joy. If I prime it, the motor will start every time, but then die a second later. I then figured out that if I prime it, and then gun the throttle, it...
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    Bad things happened today. 2001 35HP Johnson

    2001 35HP Johnson (J35VL3SIE) Well, I was cruising along wide open when there was a decent bang, and the engine died. I got it started again, but it sounded terrible, like rod knock. I putted back to shore, and with it running, I pulled each plug wire off one at a time, and the top one had no...
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    2001 Johnson 35 backfiring, no start.

    So I got ahold of a pretty cherry 35 Johnson, MN J35VL3SIE, 2001 model. The thing looks immaculate under the hood. The old guy selling it says it quit on him one day and he couldn't restart. He went ahead and just bought a replacement 4-stroke, and sold this to me for a song. It has...
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    Time for a new prop for my 1987 70HP merc

    After beating my prop against one too many rocks in an unfamiliar lake, I need to replace it. I'd like to confirm what I think I need to do in regards to changing pitch. This motor has a WOT rpm range of 5000-5500rpm. With the current 17p prop (before beating it up), could get my boat to...
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