I have a suzuki DT85 outboard that wont start. The next paragraph is the history of the motor but feel free to skip over it if you want.<br /> Long story short it hit a plastic bag at one point and over heated. The motor was completely rebuilt and ran fine for about 10 hours. Then it was diagnosed to be a bad CDI unit. Then i received it.<br /> The bad CDI was found by a non suzuki mechanic and he said he thought it was that because nothing else was wrong. I have went through all the tests in the manual and coils all check within spec along with the pulser coils and rectifier. I checked the fuel pump and the diaphram is good. Compression is good in each cylindar. Am i stuck buying a CDI or is there something else i can do. The engine wont even start now. If i feed it some ether i sometimes get a slight kick. Any suggestions? Anyone know what a CDI is gonna cost me? Is it worth it for this mid 80's vintage engine?
I just saw the date on the oringinal post. Nevermind.<br /><br />If you have a strong spark (which is easily confirmed with an inexpensive spark checker from an autoparts store) quit worrying about the ignition. To run you need a good spark, at the right time (timing), compression (125 psi good enough), and fuel/air mixture. You have fixed the flywheel key so timing is probably good enough to start. I believe you need to focus on the carbs and the linkage with the ignition timing. If the same guy that diagnosed your ignition did the carb rebuild you may know where to start. Iixnay with the etheray. Use premix in a squirt bottle. Pull off the air box and squirt some in each carb. Choke the engine. Make sure the battery is sufficient to turn the engine over at a good clip. If it fires up and then dies pull the carbs and do a thorough cleaning and reassemble with a rebuild kit. While you in there rebuild the fuel pump with a new diaphragm. Set the float height (level when upside down)and idle air mixture screws (1 1/4 turns out from lightly seated) to the manual specs.