Spark plug

[mperry]

26F0D2AF-D1A9-406F-A920-F4B29E52ED4A.jpeg Good morning all. I have a 2006 150hp Mercury optimax. Serial # 1B273623. Could someone tell me how to remove this plug? It is right above the bottom spark plug. I think with this plug out of the way it might give me enough room to get my hand in there. I have tried using a flexible hose but that didn’t work either. I’d also take any tricks you might have to get that damn thing in there. 🤣

[styler]

Best thing for me is to remove the lower cowling to do this job. you can unplug that wire buy releasing the clips top and bottom with a small pick tool . I can tell you from experience, its easy to bend the connector prongs. Be very cautious.

[mperry]

Best thing for me is to remove the lower cowling to do this job. you can unplug that wire buy releasing the clips top and bottom with a small pick tool . I can tell you from experience, it’s easy to bend the connector prongs. Be very cautious.

Thanks for the reply. My fear is that I am going to damage it.

[EuropeanAM]

I do not permit a tech to do plugs on these without removing the lower cowlings until they've changed at least 25-30 sets. Since proper maintenance requires cleaning the strainer, and the lower cowlings have to come off to do that, it's a no-brainer.

[lpugh]

Please do not take this as an insult: If you do not have the skill set to disconnect that connector or rotate the injector slightly you really should not be doing this job yourself without direct supervision on your first attempt. Many things that can go sideways on you

[JOE54]

Please do not take this as an insult: If you do not have the skill set to disconnect that connector or rotate the injector slightly you really should not be doing this job yourself without direct supervision on your first attempt. Many things that can go sideways on you

real quick ^^^^^^^

[styler]

Actually removing the cowlings is much easier than it appears. 4 bolts. youll need a 1/4" drive 5/16 swivel for the lower one in the rear and the front one. Once you do it a couple of times it goes fast. I can get mine off in 15 mins or less .

[mperry]

I do not permit a tech to do plugs on these without removing the lower cowlings until they've changed at least 25-30 sets. Since proper maintenance requires cleaning the strainer, and the lower cowlings have to come off to do that, it's a no-brainer.

I’ve never removed the lower cowl. I’m sure there are YouTube videos on how to do. How much of a pain is it to remove? Thanks for the help.

[mperry]

Please do not take this as an insult: If you do not have the skill set to disconnect that connector or rotate the injector slightly you really should not be doing this job yourself without direct supervision on your first attempt. Many things that can go sideways on you

I don’t take that as an insult because you are probably right. I just want to learn as much as I can do I don’t have to take it to a dealer. ����*♂️

[mperry]

Actually removing the cowlings is much easier than it appears. 4 bolts. youll need a 1/4" drive 5/16 swivel for the lower one in the rear and the front one. Once you do it a couple of times it goes fast. I can get mine off in 15 mins or less .

Thanks. I guess that’s my next tackle. ��

[lpugh]

It is faster to remove the cowls than to the fight the tight areas when replacing plugs, You need factory service manuel first before doing anything

[Bulldog0156]

Definitely remove the lower cowling. You run the risk of stripping the threads on the engine if you don't.

[mperry]

Thanks for the help all.