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Boat Repair/1971 135 hp
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Question
Hi I have a 135hp merc outboard when holding ign switch in start position But when you release the switch it cuts out.I already replaced the switch and wire harness do you have any suggestions.
First of all make sure the switch is the correct one for your engine. OMC used separate choke switches at that time. Also check your engine as I believe they used a battery ignition also, so if the switch is wired wrong then it will stop when power is taken away.
Get a service manual and wire the switch according to the wiring diagram in the manual.
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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