Marion Marine Services

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Marion Marine Services Specialized in 2 cycle Mercury, Johnson, Evinrude. Get back on the water with confidence.

Whether it’s a routine check-up or a major overhaul, I provide the expert care your outboard deserves.

09/02/2026

Here I'm working on a 1978 Johnson 70 hp. After going through the the ignition system and fuel system the engine still had a stubborn idle that wouldn't go below 1100 RPMs without stalling and would also stall when trying to shift into gear while in the water.

After observing the absence of exhaust coming from the idle relief ports I then proceeded to disassemble the engine down to the exhaust tube to find that the idle relief hole was completely clogged, not relieving the exhaust pressure while submerged in the water. Apologies for the dirty lense on this one.

09/01/2026

A customer came in with a 1980 Evinrude 70 hp. Told me it hadn't run in 2 years. The last time he had it out it wouldn't crank. After going through the ignition system I found 2 issues. Number one being the neutral safety switch was faulty. Number 2 being the starter solinoid. So we hit 2 birds with one stone today and got him all fixed up. I also flushed the fuel tank and replaced it with fresh mixed fuel. I'll be replacing his gear l**e and sending him on his way.

08/17/2026

Customer States: Vessel fails to idle properly but performs normally with higher RPMs and gets on plane without issue.

Vessel Details: 17-foot Tracker Deep-V.

Inspection Findings: Initial engine diagnostics revealed the idle timing was out of adjustment.

Resolution: Adjusted the idle timing to factory specifications. The engine now idles correctly and starts reliably

08/12/2026

In this video I was called to Reno county to convert my good customers 35 hp Johnson tiller to an electric start. These 35 hp 2 cylinders can be difficult to pull when cold and could wear on one's shoulder. The electric start is now installed and working great. The customer's shoulder will live to see another day.

08/11/2026

A customer brought in a 1995 Mercury 40-horsepower 2 stroke outboard experiencing rough idling. Initial diagnostics revealed cylinder #1 ignition coil outputting a low peak voltage of 20V (specification is 180V+). Further testing of the ignition system identified a failed switch box. Replaced the switch box, verified proper operation, and confirmed the engine is running correctly.

07/31/2026

1995 Mercury 40 hp Tracker Pro Series

07/29/2026

1995 Mercury 40 hp Tracker Pro Series in for idling issues / Tune-up

07/14/2026

Classic 50 spits flames after first start up in over 10 years

07/04/2026

A customer brought in a 1986 Evinrude 140 HP V4 engine, reporting that it failed to reach a plane despite the carburetors having been recently rebuilt and used only once or twice since.
Following a full diagnostic evaluation, I identified faulty fuel check valves and a defective power pack in the ignition system. After replacing both components, the motor is now operating optimally.

06/18/2026

Customer Stated:

-The vessel fails to get on plane. The previous marine shop was unable to diagnose the issue.

Diagnosis:

-Inspected fuel and intake systems.

-Found 6 out of 7 check valves to be faulty, resulting in fuel pooling in the intake.

-This pooling caused a rich-running condition, leading to hard starts, rough idle, and severe bogging during hole shots.

Corrective action:

-Replaced the faulty check valves.

-Tested the vessel to confirm easy starts, a smooth idle, and strong, responsive hole shots.

Address

1 Office Drive
Marion, KS
66861

Telephone

+17194062690

Website

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