mercury150 starting issues

[baccarac]

i have a 2000 mercury 150 xr6 carb motor ive had the motor for two years and without being to lengthy i have replaced most parts on this motor electrical and fuel lines and pump. its a clean motor that runs perfect once its started when i first start the motor in the morning its takes a few moments to crank and turn over no big deal and if i run a few miles shut the motor off and imediately try to restart it no problen turn key its turns right over if i wait 15 min or more to restart the motor it takes full throtle neutral and 7-8 seconds of cranking to turn over and is a rough start. this is way to much stress on starter stator trigger solenoid etc.. any ideas

 

[wired247]

Re: mercury150 starting issues

Sounds like an outboard.

 

[alfa]

Re: mercury150 starting issues

Hey baccarac... I two 150s that are a full of problems. One worked 2 weeks ago and than decided to not start out of the blue - no rime or reason, so this is the life of a boater without the cash to pay "the guy" for maintenance and just enjoy the boat in top shape.

You say you replaced most parts - have you cleaned carbs? If they are in top shape, I'd check timing...
Good luck

 

[baccarac]

Re: mercury150 starting issues

the carbs is the one thing i have not done because my motor idles and runs perfect.

 

[wired247]

Re: mercury150 starting issues

The carbs heat soak after sitting for 15 minutes and the gas in the carb perks out into the crankcase and the air intake housing . You turn the motor over but its too rich to start so it takes a few seconds to clear the overly rich mixture out of the crankcase before the motor fires up. Sloppy reeds will do it.