Force 125

[mybaot]

i just bot a boat with a 125 force 2 stroke i got it running and runs good but when i let it idel down it back fires and dies then my starter when out but i was thinking the firing oder mite be off can you tell me the firing order from top to botum and what u mite think this is my 1st boat so need all the help i can get thanks

 

[jerryjerry05]

Re: Force 125

1234 just like the coils. Do a compression test and a spark test.If it has set for a while then the carbs will probably be dirty and the low speed jets need to be cleaned.
Read the posts with ethanol mentioned in them.It destroys hoses and clogs up the pump and filter and carbs.J

 

[sidenberg]

Re: Force 125

What year is your Force 125 HP? If you clean out the carbs beware that some models have a rubber donut inlet needle seat that will get ruined if in contact with carb cleaner and finding replacement seats is very difficult. They are not included in the carb kits. The rubber does not hold up well to ethanol fuel either.

 

[john from md]

Re: Force 125

Sidenburg,

Try ordering needle seats from boats.net. They may take a while, but I just go three from them.

Myboat,

Backfiring is indicative of a lean mixture. The lean mixture may come from varnished or gummed up carbs or it may also be from a damaged fuel pump diaphram.

Go to the FAQ in the maintenance forum and look for the thread "waking up a sleeping outboard". You will need to do alot of what it says in that thread in order to get your engine to be reliable.

John