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    Yamaha 15 hp 4 stroke primer start

    So would a failing primer start cause the rpms to drop on cold start??? If I'm backing the boat off the trailer I have to give it a little more throttle or the rpms slowly drop... Once it's warm it don't seem to be an issue...
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    Fuel filter assembly mishap

    So I had my carb off to clean it and I had to take the fuel filter assembly off my Yamaha f15seha to get at the bolts holding the carb on. I've had the boat out twice since doing the carb with no issues. Sunday I went up river and then down and was making it back into the creek. Was at wot and...
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    Power tech srt prop

    Looking at the power tech srt prop for a Yamaha 15hp... So if I were switching from aluminum to a stainless prop like the srt would I need to drop down one or two pitches?? I have a 9x10 running 5720 wot rpm... So would I go with 9x9 or 9x8??? I plan on running an aluminum 9x9 today but not sure...
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    Spray from the outboard

    I have my outboard mounted on a bobs mini jack plate. I bumped it up to where my top of cavitation plate is right at the surface but I get alot of spray. Thankfully it all stays out of the boat. Is this normal?? Here's a picture of what I'm talking about.
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    Bilge pump wiring

    So i have a shoreline 850 gpm with built in float. So 3 wires(black=negative,red=auto float switch, brown=manual). I have power through a perko switch to a fuse block. I have power from fuse block to a 2 pin rocker switch and the brown wire to the other pin on switch. I ran the red to the...
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    Whats this hole for???

    Is this exhaust hole above the oil drain?? And is it normal for the splatter around it. It's my 2020 yamaha 15 hp. Here's a picture. Thanks in advance
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    Prop and trim

    Pretty sure I'm a lil under propped after messing with motor height. I have a yamaha 15 hp 4 stroke and was hitting about 5900 rpms trimmed all the way up before moving motor up but now with it trimmed to the second hole from all the way down im maxing 5900 where as before moving it up it was...
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    Yamaha 15 mounted too high

    Was just out today with my 2020 yamaha 15 for the break in period... I got the first two hours done and running into what feels like surging when I throttle up quickly. It wasn't everytime and didnt notice it till the beginning of third hour... would having it mounted too high cause it or a carb...
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    Longer axle???

    Would increasing the oal of axle cause any problems if the spring center is the same.. one of my spindles was pretty chewed up on passenger side so I'm gonna replace it.. the current axle had oal of 54" and the new is 56 1/4" with both having same spring center of 38.5".. I'll have to bump out...
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    72 johnson 20 hp lower motor cover mount question

    Pulled the pan cause the front mounts werent right... there was a gap between the rubber grommet and the large washer and was a bit of movement if I pulled on it... I took a picture of the bolts and all hardware from the back but not sure how the front went since on side had extra washer...
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    Johnson 6 hp carb issue?

    Had the motor out today and was only getting 2500 rpm at wot... itd rev higher in neutral and was able to get another 100 rpm before just calling it quits... gonna go check compression and spark in a few and will report back
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    70s Piecemeal johnson 6hp

    So got a supposed 74 6 hp that was in pretty bad shape when I got it... the t stat was corroded and stuck open and the holes that the t stat controlled were plugged so I pulled the head and cleaned the jackets up good but now there's no water making it to the jacket around cylinders... there's a...
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    Johnson 6 hp powerhead gasket set question

    Do they offer the set with or without the head gasket.. I ordered a set but assumed it was without the head gasket and ordered it separately but the set came with one... and I've got a set for my 25 and 20 hp and the set came with everything minus the head gasket... well I assumed the 6 hp would...
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    74 johnson 6 hp freeze plug

    Picked up a 74 johnson 6hp and after looking it over after getting home there's RPH and the freeze plug looks like it was molded with the block so it's not domed.. it looks like factory painted also.. gonna get some pics up shortly..
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    Michigan pj 14

    Looking for info on this prop... this come on my johnson 25 on a 14ft jon... pj 16 is 9×10 I believe and cant find any info on pj14... so it possibly a 9x9??? Thanks in advance
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    Gearcase head assembly seal???

    So I picked up another 72 evinrude 25 lower unit and wondering how your supposed to replace the seal with the cap on the end... I boogered up another like it but it didn't have the lip going around making it look like it was soldered on?? May try posting pictures of the clutch dog and forward...
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    Wot noise 72 20hp

    Got a noise at wot but if I lower the throttle a bit it goes away.. this a timing issue with the points or what... it's a 20 hp btw. I've gotten the sound to drop just below wot tho so that's why I was thinking my points or possibly carb because I messed with them that run. here's a quick video...
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    72 johnson 20 hp carb sync

    Trying to sync the carb and when using a stiff piece of wire on clips there's a bit of downward pressure on throttle shaft before it actually starts to open... is that normal and be taken into account??? Another thing some say it should start to open dead center of the two marks and manual says...
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    No start

    72 Johnson 25 hp that's got spark that'll jump 1/4" and compression 135 both cylinders but cant get to start or try with choke closed. But if I open the choke and pull the roller cam from link and sync away itll fire up for a bit... I've gone through the carb and fuel pump.. another thing the...
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    72 johnson 25 hp no spark???

    Bought a boat that had a 72 johnson 25 hp but p/o had jumped the solenoid and it ran good... he had some switch in the positive battery cable which was pretty much burnt up... I even fired it up again with his switch... I pulled the factory wiring plug and got a new solenoid wired it up with...
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