1989 Mercury XR4 150 HP #OC149677 - Will not start

[BRETT]

I have the above stated motor that will not start. I replaced the fuel pump, but it seems fuel is not releasing from the carburetors. the primer bulb will stay pressurized. All cylinders are receiving a spark and have great compression. I assuming the carbs may need to be cleaned/rebuilt, then synced and linked? Any info is greatly appreciated. Thank you.

[Merc2.4]

The carbs pretty simple , very little parts in those, most of the time u can get away with just a cleaning. Next time take the air box off and watch ur carbs as u pump the primer bulb and look for gas running out of carb

[JOE54]

enrichner working ?????

[BRETT]

The carbs pretty simple , very little parts in those, most of the time u can get away with just a cleaning. Next time take the air box off and watch ur carbs as u pump the primer bulb and look for gas running out of carb

I pulled the air box off and pumped the primer bulb, there was no gas running out of the carb.

enrichner working ?????

I think so? gas dribbles out of it, not a spray or anything like that.

Any more information is greatly appreciated. Thank you.

[JOE54]

inlet needles stuck , pull main jets see if fuel comes out when pump bulb

[leonreno]

Doesn’t sound fuel related if the carbs turn out clean.. Have you checked for spark? Is this a motor you have owned and it was working and then will no longer start?

[JOE54]

#1 has spark

[BRETT]

inlet needles stuck , pull main jets see if fuel comes out when pump bulb

I think the inlet needles were stuck/dirty. Cleaned up carbs, new fuel pump and lines, as well as carb gaskets. fired right up as soon as key was turned. Thanks for all the help!!

[Merc2.4]

Carb seats or needle mite be wore out and tryin to stick. If it does it again just get the kits

[JOE54]

I think the inlet needles were stuck/dirty. Cleaned up carbs, new fuel pump and lines, as well as carb gaskets. fired right up as soon as key was turned. Thanks for all the help!!