How do you break in a 4 stroke outboard motor?

How long does it take to break in an outboard motor?

2-STROKE OUTBOARDS (CARBURETED)

8-9.8 hp (2-Str) 1-10 min 2-3 hrs
Throttle Position Idle Less than 3/4 throttle
Speed Full throttle run allowed for 1 min every 10 min

How do you break in a new Mercury 4 stroke outboard?

For this particular model, during the first two hours of operation run the engine at varied throttle settings up to 4500 RPM, with one-minute bursts at full throttle every ten minutes. Always warm up the motor thoroughly at idle before running at higher engine speeds.

What happens if you don’t break in outboard?

Failure to follow the “break in procedure” for an outboard motor can result in mechanical failures, reduced life of the outboard and even a voided warranty!

How do you break in a Yamaha 4 stroke?

First hour – run the motor at varying speeds up to 2000 rpm (approximately half throttle if there is no tachometer). 2. Second hour – accelerate hard enough to put the boat on plane (do not use full throttle) then back off of the throttle but keep the boat on plane. 3.

IT IS INTERESTING:  How much thrust does a drone motor have?

How do you break in a Mercury 90 hp 4 stroke?

For the first two hours of operation, run the engine at varied throttle settings up to 4500 RPM or at three‑quarter throttle, and at full throttle for approximately one minute every ten minutes. . For the next eight hours of operation, avoid continuous operation at full throttle for more than five minutes at a time.

How reliable are Tohatsu outboards?

Tohatsu, Japan’s oldest outboard manufacturer, has been producing high quality, durable outboard motors since 1956. The ocean-tested engineering that enables Tohatsu engines to work under intense demand and harsh conditions makes Tohatsu one of the toughest, most reliable engines on the market.

Does tohatsu make 2 stroke outboards?

Tohatsu 2-strokes are world famous for their reliability, terrific-horsepower-to-weight ratios and top-of-the-line performances! This in-line 3-cylinder outboard provide all of the extra features you want and need without compromising Tohatsu’s well-known quality.

How long does it take to break in a Mercury 4 stroke outboard?

Here’s what Mercury recommends for its Verado four-strokes: First two hours: Run engine at varied throttle settings up to 4500 rpm or three-quarter throttle and at WOT for about one minute every 10 minutes. Next eight hours: Avoid continuous operation at full throttle for more than five minutes at a time.

Do outboards get faster after break-in?

I do not recall ever seeing a significant speed increase after breaking in a new outboard. However, I have seen significant speed increases as I learned how to optimize trim, pitch and mounting height. I don’t think you’ll see much of a speed increase after break-in.

IT IS INTERESTING:  What are the steps to calculate stepper motor?

Do you have to break-in a lower unit?

Technically, a new gearcase should be broken in as if it were a new engine (for the first hour). Vary RPM’s, no need to “tuck trim” in this case. After 1 hour, normal operation. Change gear lube at 10-20 hours (Mercury or Quicksilver High Performance).

How do you break-in an outboard after rebuilding?

Use only enough throttle to plane your vessel and then throttle back to below 3000 RPM. Avoid operating in the 3000-4000 RPM range at all times during the 10 hour break-in period. During the 6th hour of break-in, plane boat quickly and then throttle back to maintain minimum plane speed.

Motorization