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I used the OEM NGK plugs from the dealer. I searched on here for the gap, but I don't remember what the result was. As for the "drier"....I wonder. I do a LOT of trolling and it's only about 10...

Interesting. I figured condensation was normal to a degree, but I thought this was excessive. Perhaps no big deal. Funny though that after purging it the idle is back to normal...or so it seems. I'll...

New running characteristic for this season has been a rough idle for my 2005 Opti 175 Ser# 1B119293. Last year was no issue. This years work included new exhaust tuner and spark plugs. While poking...

Thanks for the advice. The new tuner actually came with the gasket, but not the bolts. It tells about the bolts, but does not include them. It says I would use 1/4-20 by 1" bolts and gives a part...

Victory. It really wasn't so bad. The torch alone didn't do it, and honestly I didn't have the balls to go as hard as I probably needed to with just the torch. One tidy, well placed hole drilled in...

I'll give it a go! Once I get the powerhead off, what's the process for removing that swivel shaft? Is it as easy as it looks? Just pop it up? I'm also installing hydro steering right now, so that...

So heat the aluminum and not the stud? Is the corrosion usually towards the bottom or top of the hole?

The swivel is pretty ugly. Its all tight, but ugly. Its a salt motor all it's life. I was...

Hey guys. I'm finally getting around to swapping my exhaust tuner after the nylock nut issue. I have 10 nuts off the studs. All but 1 of the studs is free. Some of them actually will have slight...

Hey guys. I have confirmed by dropping the lower unit that my tuner is dangling. It looked like tabs are broken off. Its back on now, and the motor seems to still have plenty of power but does have a...

Hey guys. The wife got me the Fell Marine tetherless kill switch for my birthday and I want to wire it in. I have an 06 opti 175 with the kill switch integrated into the controls. Do I have to open...

I have the solid plugs that came shipped with the prop. I may try swapping back, but the issue is so rare, that I think I'd need to run for a while on the 3 blade, which is much less fun than the 4...

Connected or coincidence? I haven't had this boat long, but I used it for a month or so with a 3 blade aluminum. No stalling. Then switched to a 4 blade stainless (Mercury rev 4, 17p). I've had it...

New sensor installed. Problem 100% solved. Water pressure reads around 17 on the smartcraft at WOT and the boat moves nicely. Thanks to all for the help!

Used a spare boost gauge from my TDI as a water pressure gauge. Shows about 2 psi at idle and jumps up to 5ish if I raise it even a little. This is just on muffs at low rpm. Wont be able to really...

No faults with the sensor swapped. Just shows a zero for pressure which I guess would make sense since it's the wrong range and looking for different signals. Thanks guys. Time for a new sensor.

I thought about that because they "look" the same! Just didn't want to do damage if it isn't. I'll give it a shot. Thanks!

I've googled the heck out of this and it really seems like its a bad block pressure sensor. Love to have someone smarter than me confirm my findings :)

So I turned off the sensors I'm not using. The video below shows what happens. After a few seconds of being on it says "FAULT. Water pressure sensor" Then "FAULT SENSOR" then "CHECK ENGINE".

If...

I'd still like to get the psi gauge to work on smartcraft. I'm assuming bad sensor at this point, due to "fault" as opposed to a bad reading. Can anyone confirm?

Ok so the sensor it's looking for is the in boat tank? The one on the motor is just a switch to set an alarm if it gets below a certain point? This makes sense.

As for the water pressure sensor,...

Hello all. I recently got all the parts needed to connect a SC1000 smartcraft tach to my 175 Optimax (Ser#1B119293). I wanted the gauge for a few reasons. To have an accurate tach, to get alarm info,...

Would you think that a little grass stuck in that spot could be enough to hold the poppet open just a tad and make it not build enough pressure?

Serial #1B119293. I thought this was the right section because its a stock motor. I thought the one below was for "high performance". If I'm in the wrong spot, can a moderator move it? (should have...

Hey guys. I've got a motor on a boat I recently purchased that has a very intermittent alarm. When it happens, it happens at high rpms, mostly around 5k and stops immediately when I reduce throttle,...

IMO the best glue to use is what you get from an upholstery shop. I don't know what it is but it's green and gooey. I go to my local upholstery shop with a metal can and they fill it up for me. If...