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The boat yard called today. Fouled plug on #3 causing total drop out. 179 hours on the motor

First time I've ever heard of a fouled plug on a newer 4 cycle motor. I've built a lot of motors.

I want to see the other 3 plugs tomorrow.

Victor

Will you be set for the pirate sail or am I going to get to take laps around you too?

SENCMac25 wrote:Will you be set for the pirate sail or am I going to get to take laps around you too?

Pink slips?

Victor

Only if you keep the 50 and drag an anchor.

vkmaynard wrote:The boat yard called today. Fouled plug on #3 causing total drop out. 179 hours on the motor

First time I've ever heard of a fouled plug on a newer 4 cycle motor. I've built a lot of motors.

I want to see the other 3 plugs tomorrow.

Victor

I have fouled quite a few but I always thought it had something to do with additives like star-tron or sea foam .i tend to be heavy on the additives for storage but I know they have caused me to foul plugs !

If I recall correctly, Todd and Blue Water Yachts said that plugs don't last long on the Suzuki's for whatever reason. He recommended that if you don't want to replace them as often then go with the eridium plugs.

Picked up our boat today and ran it in the local lake. Runs perfect with new plugs.

Moral of the story is change plugs every few years on this motor.

The plugs looked ok to me. I guess the vibration broke the plug inside or the plug was defective. There was zero fouling.

Hard to imagine not owning a 90 on our boat. It really has the proper authority.

Victor

I really like the 90 when the boat is light. With a fully loaded boat I would like a bit more power. I noticed that for less than 50 additional pounds a person could go with the 140 HP. That is an additional 50 HP per pound! If I was going to do it over again and found a good deal on the 140 I would likely try that. Do I have 50HPitis?

The additional weight would go at the far end of the cockpit, not in the boat itself. It'll make a difference when trailering, too, when the passengers are usually not on the boat

If you need more speed for the passengers, a speedboat with a big-ass engine would work better.

Come-on don't be a party pooper, people who run little 5hp-9.9hp motors give the same speech about your big etec50hp.

I really like the 90 when the boat is light. With a fully loaded boat I would like a bit more power.

Weight eats up the HP quick I was 28mph with an empty boat and bottom paint, normal load dropped it down to 24, and live aboard heavy its down to 20. The 140 would probably add about 4-5mph to those numbers.

The additional weight would go at the far end of the cockpit, not in the boat itself. It'll make a difference when trailering, too, when the passengers are usually not on the boat

I agree the extra weight will change the way it balances on a stock trailer, but I don't think the extra weight on the stern is of noticable negative consequence when on the water. I have the older 400+ lb DF90 on a 5" setback plate. Weight was a huge worry to me before swapping motors, like Ray mentioned, same as the normal sailboaters trying to wrap their brain around a 50 on a sailboat. The back third of the X is almost completly flat and handles the extra weight fine. Its not a traditional sailboat hull... IMO it sails and powers more solid than it did with a lighter stern. Weight up front where there is no hull to displace it makes a much larger impact. From my experience changing 20lbs of anchors up front is more noticable than 100lbs in the stern.