Mariner 25hp no start

**skunked again** · 04-17-2018, 10:36 AM

I think it's a mid 90's model, work boat. I just rebuilt the carb. We're getting spark, although weak, and the plugs are wet - after cranking. Thoughts?
Model number og114869.

**skunked again** · 04-17-2018, 10:42 AM

I was just informed, the last times it was used - it would not come up to full rpm, the next trip it wouldn't start.

**dusty_allen** · 04-17-2018, 12:43 PM

Originally Posted by skunked again

I was just informed, the last times it was used - it would not come up to full rpm, the next trip it wouldn't start.

Did it ever hit when trying to start?

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**skunked again** · 04-17-2018, 01:08 PM

This time? No. It did backfire.

**Erin Brewer** · 04-17-2018, 01:16 PM

Little black box on the left side the controller could be going out. I doubt it would be the stator, most of the time when they go you get no fire at all.

**skunked again** · 04-17-2018, 01:25 PM

Originally Posted by Erin Brewer

Little black box on the left side the controller could be going out. I doubt it would be the stator, most of the time when they go you get no fire at all.

How do I check it?

**Erin Brewer** · 04-17-2018, 07:51 PM

Swap it with another one.... I'm not sure on the proper way to check it.... I never got my hands on a service manual or schematic....

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**skunked again** · 04-17-2018, 08:37 PM

I was afraid you say that. No access to another one.

**outdoorsron** · 04-18-2018, 12:02 AM

Hello: I would check the compression before spending a lot of money . Good Luck . O - R

**sliderman** · 04-18-2018, 05:51 AM

That's a 95 model. Check your fuel for the presence of water. Fuel should be transparent with only the color of the oil that's added. Ethanol blended fuel will become cloudy as water concentrations rise.

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