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    225 Johnson Cylinder Scoring

    Hello, I recently rebuilt my 1998 Johnson 225. It runs great, but now that I have about 5 hours on the break in I realized that the cylinders are scored. The compression was uneven, and I checked a few of the cylinders using a borescope and found the scoring. I though it blew up last time due to...
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    Crankshaft Journal Wear

    Hello, I was putting my 1998 Johnson 225 powerhead back together and noticed some wear around the crankshaft journal of the #2 cylinder. This is circled in the attached picture. #2 was the cylinder that went out. The piston ring locator pin came out. What would cause this wear? Was something...
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    1998 Johnson 225 Rebuild

    I am currently working on rebuilding my 1998 Johnson 225 that lost a locator pin in the #2 piston. During the teardown process, I found a few things that I was not sure if they were normal or not. The first of these was that there was fuel present in the hose connecting the fuel pump to the...
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    1998 VRO Electronics

    The tachometer no longer works for my 1998 Johnson outboard. After some troubleshooting, it looks like the issue is in the VRO electronics. The tachometer works as it should when the VRO plug is disconnected. When the VRO plug is plugged in, the DVA reading on the gray signal wire leading to the...
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    1998 Johnson 225 Rebuild Needed??

    Hello. I rebuilt my 1998 Johnson 225 earlier this year and had a head gasket issue that ended up causing some scoring on the cylinder walls on the port side of my engine. I decided that since it still ran good, I would let it go until winter, when I would have more time to work on it. Now it is...
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    225 Johnson Running Lean

    I am trying to chase down a problem with my 1998 Johnson 225 outboard that is running lean at all speeds. When at idle it will occasionally sneeze and die. When I try to get on plane, it often will stall and will die as I give it throttle. In these cases, I have to hit the primer to get on...
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    Can the back half of a powerhead be used with a front half from a different one?

    Can a front half (intake side) of a 1998 Johnson 225 powerhead be used with a back half (piston side) from another powerhead. I just wanted to make sure they will line up properly and it won't give me trouble down the road. The front half from the one I want to rebuild has a hole knocked in it.
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    1998 Johnson 225 Cylinder Sleeve Replacement

    My 1998 Johnson 225 blew up a few days ago and the block that was on it is beyond repair. I do have another block that is in good shape other than the fact that it is missing a sleeve in one of the cylinders. I was looking around online and have found a few places that sell them. One of the...
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    1998 Johnson 225 stalls when accelerating

    My 1998 Johnson 225 has been running poorly recently. It idles a little rough, but the bigger problem is that when I give it gas to accelerate it likes to die. This problem is the worst when I am fishing at a spot and the motor sits for a while. If I am on plane and slow down and idle around for...
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    Johnson Outboard Noise

    My 1998 Johnson 225 outboard recently started making a rattle noise (a video is in the link below). I was hoping someone would be able to point me in the direction of the cause. It has me lost. It almost sounds like something is loose rattling around, but I feel like it is too loud. I was...
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    Powerhead Express Reviews

    I am looking at buying a bass boat with a 1998 Johnson 200 that was rebuilt at Powerhead Express in Tampa Florida. I was wondering if anyone has heard anything either good or bad about this Company. Thanks.
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    1999 Mercury 225 EFI Loss of Top End

    Last fall I purchased a boat with a 1999 Mercury 225 EFI. When I took it out it went around 70 miles per hour and turned almost 6000 RPMs. Recently however, I have experienced some problems with the top end. Now it will only get up to about 64 and spin at 5400 RPMs. When I first experienced this...
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