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Boat Repair/Rough idle and dying when placed in gear

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Expert: Jeff Grigg - 2/5/2008


Question
I have a 200 hp Johnson Looper Motor. What is a simple way to check the carburetor float level on each of the 3 carb's
This is a l989 Model and it really runs great other than slow idle.Great hole shot and good strong top speed.I notice gas running down the shaft when I pump it up and it just seems like it is loading up.  

Answer
There is no way to check the float level without removing and disassembling the carbs.  If you have a stuck needle or seat it will idle rough. I would recommend either a trip to the shop or buy the necessary kits and a service manual and rebuilding the carbs.
Jeff

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Jeff Grigg

Expertise

Can help with most any question related to outboards, high performance, hull repair, rigging, if it floats and uses a motor. From a 9.9 on a aluminum boat to DFI two strokes. Outboard motors are my specialty. I can help with some I/O questions as well. Ratings are the only way we know if we are helping. If you are pleased with the help, please rate us. 20% don't bother reading my answers! If you are not going to read the follow up then why ask? Keep in mind we do this at no charge and are not paid. We do it to help you!

Experience

32 years in the marine business. Own a service facility, in coastal South Carolina certified Master Tech by Johnson/Evinrude, certified Mercury/Force, Tohatsu/Nissan. Former technical director for DMI Pistons. 30 year racing career including 3 APBA Formula V National Championships

Organizations
AMTECH, APBA

Publications Written For
Boat & Motor Dealer, Car Classics, Custom Vans (tech articles), Miami News, powerboat racing column

Awards and Honors
Certified Master Technician Johnson/Evinrude

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