Maybe you drained the gear oil on your Mercury 9.9 and found it milky, and the steps in our guide do not quite match what you are seeing. Maybe you spotted a spec on the site that does not line up with the owner's manual for your exact model and serial range. Or maybe you just want to ask whether a repair on an old Johnson two-stroke is worth the money before you order parts.

Small Boat Wrench is an independent publisher. We are not a dealer, a manufacturer or a marine shop, and we have no affiliation with Mercury, Yamaha, Suzuki, Evinrude, Johnson, Tohatsu, Honda or any other brand. We cannot look up your engine remotely or quote shop work, but we read every message and we answer what we can.

Write to us the same way you would describe the problem at the boat ramp. Brand, horsepower, two-stroke or four-stroke, approximate model year, and what you have already tried. The more concrete you are, the more useful our reply will be.

Small Boat Wrench

Before you write

What helps us help you

Include the engine details up front: brand, horsepower band, carbureted or EFI, and the model year or serial number if you have it. A message that says 'no spark' gives us little to work with. A message that says '1998 Evinrude 15 hp two-stroke, no spark on the top cylinder after I replaced the plugs' gives us something real.

If you are writing about a spec on the site, tell us the page and the value. We only publish numbers that come from the owner's or service manual for an exact model and serial range, so if something looks off, we want to check it against the manual and fix it.

One honest limit: we cannot diagnose your engine by email the way a certified marine tech can with the cowling off. If your problem involves fuel inside the cowling, a submerged powerhead or a cracked block, that job belongs in a shop, and we will tell you so.

Common questions

How fast will you reply?

We read every message, but we are a small independent publisher, not a service desk. Replies can take a few days, longer during spring commissioning season when the inbox fills up. If your boat is stuck on the trailer and the season is slipping away, do not wait on us: a local marine tech is the faster fix.

Can you look up the spec for my engine?

Not directly, and we would be guessing if we tried. For torque specs, clearances and fluid capacities, always use the owner's or service manual for your exact model and serial range. If one of our guides seems to conflict with your manual, write to us with the page and the value, and we will check it and correct it if we got it wrong.

Do you take repair work or sell parts?

No. Small Boat Wrench publishes guides and does not sell parts, service or shop labor. We have no affiliation with any engine brand and no dealer relationships. If a job is beyond basic hand tools and a garden hose, we will say so plainly and point you toward a certified marine tech.