How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dominick Your Own Question
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
Type Your Boat Question Here...
Dominick is online now
A new question is answered every 9 seconds

Our new captain mixed diesel into the fuel tank of our new

Customer Question

Hi Jason
Our new captain mixed diesel into the fuel tank of our new Suzuki DF115a 4 stroke last week.
The motor ran for 300m then died.
We towed it back then realized the problem and proceeded to flush all the tank, lines and removed and cleaned injectors and replaced the spark plugs.
Now the motor runs only on two cylinders.
There was no alarm and there are no flashing indicators.
It appears to be an electronic problem as there is no spark to two cylinders --- counting top down cylinders 2 and 3 have no spark.
There is power to the injectors.
Any ideas HUGEly appreciated.
Bill Gee
Submitted: 2 years ago.
Category: Boat
Customer: replied 2 years ago.
that is 300 meters or yards not minutes.
Expert:  Jason replied 2 years ago.

Hi Bill, my name is***** the engine have a Suzuki tachometer hooked up to it? If yes, is the check engine light on that tachometer flashing any codes?

Customer: replied 2 years ago.
No tach, but a controller.
As I said in my first mail, no flashing lamp codes or beep alarms.
Expert:  Jason replied 2 years ago.

Without a tach to flash a code you are going to have to take this in and get it hooked up to a diagnostic laptop. This won't be anything I can help you with here. Good luck!

Customer: replied 2 years ago.
Hi Jason
Please understand my predicament:
I am on an island off the coast of northern Mozambique hundreds of miles from the nearest diagnostic laptop and have a charter group flying in in 4 hours.
Please think --- are there any events that would cause the motor;'s brain to restrict spark to those two cylinders?
If yes, what are the reset codes or what do you suggest we check?
We have cleaned the tank, filters, pump, injectors and all is working after the diesel entered, except no spark on two cylinders...
Our 'bush mechanic' has kept our three non-electronic Yamahas running purrfectly for years, but this one has him stumped.
I'd really appreciate a bit of creative thought here...HUGE thanks