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Dec 30th, 2023
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 Motor lacks power
#10242629
08/27/14 10:09 PM
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Joined: Jan 2012
Posts: 865
rowlettfisherman
OP
Pro Angler
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OP
Pro Angler
Joined: Jan 2012
Posts: 865 |
I have a 96 mariner 200efi. I basically has very little power on the take off. Once on pad it runs as it should(it feels like it anyway) Its on a 18'4" champion, so it should come out of the water with no issues. Compression is good on all cylinders (128 on 4 129 on 1 and 130 on 1) New fuel lines, new filter. I don't know if you can check the amount of spark at each plug to see if the coils are functioning properly. Whats your thoughts?
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Re: Motor lacks power
[Re: rowlettfisherman]
#10242718
08/27/14 10:44 PM
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Joined: Dec 2005
Posts: 4,411
ogles824 (aka Lakewaydr50)
TFF Team Angler
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TFF Team Angler
Joined: Dec 2005
Posts: 4,411 |
It could be just the weather. 2 stroke outboards don't like hot heavy air and a motor this size can give up quiet a bit of power in these conditions. I ran V6 Mercs on all my rigs and at this time of year in these conditions sometimes it felt like I was dragging another boat behind me and when cool weather came around it felt like I was running on racing fuel. I saw an article in a magazine a few years ago where they were testing a Johnson Faststrike 175 in different temp, elevation, and humidity conditions and this motor varied by as much as 25 horse power when run in totally opposing conditions.........
Last edited by ogles824 (aka Lakewaydr50); 08/27/14 10:44 PM.
2012 ZX200 Skeeter 2012 Yamaha 200 SHO Isaiah 40:31 "but those who hope in the Lord will renew their strength. They will soar on wings like eagles, they will run and not grow weary, they will walk and not be faint. Proud student of the Pro Staffer. https://www.youtube.com/watch?v=TzwF72B2F2w&t=14s
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Re: Motor lacks power
[Re: rowlettfisherman]
#10243150
08/28/14 01:43 AM
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Joined: Nov 2006
Posts: 2,952
TLW
Extreme Angler
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Extreme Angler
Joined: Nov 2006
Posts: 2,952 |
Something new or always acted that way?
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Re: Motor lacks power
[Re: rowlettfisherman]
#10243181
08/28/14 01:53 AM
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Joined: Sep 2012
Posts: 554
Dawg gone fishin
Pro Angler
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Pro Angler
Joined: Sep 2012
Posts: 554 |
I hope mine don't get any more pep when it cools off. I'll sell the that girl.
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Re: Motor lacks power
[Re: rowlettfisherman]
#10243581
08/28/14 09:49 AM
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Joined: Nov 2006
Posts: 2,952
TLW
Extreme Angler
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Extreme Angler
Joined: Nov 2006
Posts: 2,952 |
whats max rpm? Could be several things from over propped ta fire.....Boat in good shape? You should consider an "OEM" manual if ya gonna diy. Try tha site below for online version. Be very patient. Loading takes time...... http://boatinfo.no/lib/library.html#
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Re: Motor lacks power
[Re: rowlettfisherman]
#10243807
08/28/14 01:14 PM
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Joined: Jan 2012
Posts: 865
rowlettfisherman
OP
Pro Angler
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OP
Pro Angler
Joined: Jan 2012
Posts: 865 |
25p set up by steve. 65mph at 5500rpm. runs fine after you get on plane. Its all in the takeoff
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Re: Motor lacks power
[Re: rowlettfisherman]
#10243840
08/28/14 01:25 PM
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Joined: Jan 2007
Posts: 5,781
nax
TFF Celebrity
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TFF Celebrity
Joined: Jan 2007
Posts: 5,781 |
Does it feel like it bogs down? Like maybe fuel has puddled and it's struggling to burn the excess out?
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Re: Motor lacks power
[Re: rowlettfisherman]
#10244055
08/28/14 02:44 PM
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Joined: Jan 2012
Posts: 865
rowlettfisherman
OP
Pro Angler
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OP
Pro Angler
Joined: Jan 2012
Posts: 865 |
When it is running at its best it hesitates for a sec or two then takes off like it should
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Re: Motor lacks power
[Re: rowlettfisherman]
#10244119
08/28/14 03:09 PM
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Joined: Dec 2002
Posts: 3,832
Tommy Yetts
TFF Team Angler
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TFF Team Angler
Joined: Dec 2002
Posts: 3,832 |
Did start after the prop rework? That's a little low on the max rpms. I would like to see it at least 5800 rpms.
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Re: Motor lacks power
[Re: rowlettfisherman]
#10244529
08/28/14 05:55 PM
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Joined: Jan 2012
Posts: 865
rowlettfisherman
OP
Pro Angler
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OP
Pro Angler
Joined: Jan 2012
Posts: 865 |
It will get to 5800, I just don't go there. Typically I don't go more than about 40mph. It sucks the gas down above that. After im on plane it will sit you back in your seat if I hit the throttle.
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Re: Motor lacks power
[Re: rowlettfisherman]
#10244712
08/28/14 07:17 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Sounds to me like the TPS is out of adjustment.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Motor lacks power
[Re: rowlettfisherman]
#10247104
08/29/14 05:56 PM
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Joined: Apr 2004
Posts: 14,793
Stump jumper
TFF Guru
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TFF Guru
Joined: Apr 2004
Posts: 14,793 |
I had to put plugs in to keep it from cavitating How many you running? I have 1 in or 2 out on a 175 carbed Merc.
2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
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