Oceanpro 200 issues

Firemedic512

Recruit
Joined
Jan 9, 2019
Messages
3
I have an oceanpro 200 evinrude that is idling high. It just started and will idle down if I push the key in as if I was choking it. It’s idling around 15-1700 rpm unless it’s in gear then it’s around 1100. It also sounds like it has a bottom end knock, but I can’t be sure (I’ve never worked on 2 stroke before). Any ideas or recommendations would be greatly appreciated. Thanks In advance
 

Bosunsmate

Admiral
Joined
Apr 7, 2012
Messages
6,129
Id start on a compression test. And while waiting for a tester (if you dont have one) have a look at the sparkplug tips and see if their colours tell a story
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
15,417
Are those idle speeds in water or on a hose?

Idle speed is set in the water, in gear, tied to the dock

Mine idles 1400-1500 on the hose until quick start drops out then drops down to 1200-1300.

The factory in water, in gear spec is 650, but mine is uneasy at the rpm. Very reliable idle @ 700-750

Run compression test. Keep a good water pump in it.

if your running a prop with a flo-torque type mount, expect some strange noises out of the LU.
 

Firemedic512

Recruit
Joined
Jan 9, 2019
Messages
3
Those idle speeds are in the water, it’s a little higher on the hose. It seems to be firing on all cylinders, just makes what sounds like a bottom end knock around 1500-2000 rpms. No power loss, water pump is flowing water, and it sounds completely normal at higher rpms. I’m wondering if these are two different issues or if they are related
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
15,417
Those idle speeds are in the water, it’s a little higher on the hose. It seems to be firing on all cylinders, just makes what sounds like a bottom end knock around 1500-2000 rpms. No power loss, water pump is flowing water, and it sounds completely normal at higher rpms. I’m wondering if these are two different issues or if they are related
Your idling 400+ rpm high. Need to figure out why and adjust the idle to spec before going on.

What is the compression in all cylinders?
 
G

Guest

Guest
That motor automatically increases the timing to idle fast when the motor is cold, The knock sounds like the motor could be just "sneezing", which these often do when they're cold. (I have a 98 200 OceanPro), Idle should be around 900 when she's hot. She may idle high and a little rough too, on the hose because you have no back pressure at the exhuast hub.
Unless you hear what sounds like metal to metal contact or a physical "thud" when you say its "knocking" you may not have a problem at all.
 
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