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Old 06-26-2016, 02:19 PM   #11
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Quote:
Originally Posted by mmwjr View Post
I have no idea what these black plugs are, can you post a picture?
Aren't they called prop vents? No idea what they do, though.

These guys are supposed to be pretty good. give them a call, describe the symptoms in detail, get their recommendation. Propgods.com > Mercury
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Old 06-27-2016, 05:56 PM   #12
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Ken, who is super nice and got back with me quickly, said this:

Should have 3 of them. one near the leading edge of each blade.

Its called the PVS system. (performance vent system)
Bascially, if the motor is bogging or hesitating when you initially hit the throttle, opening those vents up will let the motor rev up quickly.

If you open them too much, the prop will just ventilate to easily and holeshot will suffer. I would only open them if the motor was struggling to turn up RPM when you hit the throttle at first.

The way to take them out and not damage them so you can put them back in if needed. Take the prop off, and use a large philips head screw driver.
Push down on the center of that plug, and push it INTO the prop.

Give the motor a run with a couple plugs out if you want to see how it runs.
Then use a flat head screw driver to work the plugs back into the holes.

Now we know. I don't seem to have a problem with the engine bogging down when I accelerate so I'll just leave them in for now.

Sorry, I still can't figure out how to place a picture in a post.
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Old 06-27-2016, 07:50 PM   #13
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To post a pic from your PC, click on "Post Reply". Look above the text box and you'll see some editing icons, and one of those has a paper clip. Click on that and another box will open, click "Browse" and find the pic on your PC you want to load, then click Upload and then close the box.

None of which solves your prop issue. Did Ken give you any rec's?
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Old 06-27-2016, 08:45 PM   #14
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Thanks SS. Here it is.
Attached Images
File Type: jpg prop vent.jpg (143.9 KB, 9 views)
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Old 06-27-2016, 10:02 PM   #15
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Ok so they are on the forward part of the prop hub. Adjust to let exhaust gases flow over the prop to provide some slip to allow it to spin up faster.

Never saw this before.
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