2007 155hp wont start when hot

Kennyamg

Member
Hi!

I have a 2007 Speedster 150 with the 155 na motor. It starts right up when cold, idles great, no loss of power when hammering it. New plugs, new oil switch sensor.

After running it for a few hours and its off, It starts taking a few extra cranks before it starts. Thats when i know its coming... the next time i shut it off, i can crank it for days and it will not start. Get towed back to the ramp, load her up. Next day on the driveway, she starts up like nothing ever happened. No codes, no beeps, no lights. Anyone else have a clue or experienced something like this? Besides this, it runs perfectly, at a loss.
 
Could be a weak battery or corroded terminals.
Have the battery tested or replaced.
If not this then clean all high power cable terminations including grounds on the engine above the front motor mount..
 
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