I had an 88 115HP Suzuki that wouldn't start for nothing if the temp was in the 20's. Had it tuned up, and had 2 batteries connected in parrallel for starting, still didn't help. If I ever got it started, it would start fine the rest of the day.

Ended up taking a can of ether with me and would spray it in the carbs before I launched the boat. Did that the last several years I had it during the cold temps. That eliminated my starting problems. Didn't like carrying the ether in the boat though cause it's so flammable. Usually kept it in the bed of the truck.

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I'd rather be catchin! :7