135 Mariner makes no sense.

S

swebster

Recruit
Joined
Dec 3, 2012
Messages
1
I have a 97 Mariner 135 that has sat for a while. New fuel, filter, primer bulb. Cleaned crabs. Motor starts great, idles great, powers up in reverse. Bogs down and dies in forward. Good strong spark to all plugs. Compression around 100 on all cyllin ders . Cylinders 135 get warm 246 stay cold. Anybody have any issues like this. Thanks
 
W

wn6ngp

Petty Officer 1st Class
Joined
Aug 12, 2012
Messages
220
Re: 135 Mariner makes no sense.

You are probably suffering from gasohol poisoning. ie. the bad gas has clogged your power jets. I'm assuming you have carbs. Try running some Sea Foam thru there. It took several tries for me but ultimately it cleared and I did not have to tear down the carbs.

What kind of seasoning did you use on the crabs? :)

Don
 
F

frantically relaxing

Senior Chief Petty Officer
Joined
Nov 19, 2011
Messages
699
Re: 135 Mariner makes no sense.

"sat for awhile"-- Had this exact problem when we bought our Party Cruiser (115 Mariner), with that in mind, chances are your fuel pump diaphragms have hardened up while sitting. It's probably pumping enough gas to the carbs to keep up with idling and reversing, but you're simply running out of gas when putting a good forward load on it. Good news is, fuel pump kits aren't all that expensive (mine was $15 back in '05)
 
M

Maxz695

Guest
Re: 135 Mariner makes no sense.

Sounds like the switchbox isn,t firing on 246. I think they recomend removing the white black from the trigger to the switchbox and see if it fires if you get spark then you have a bad sector in the switchbox. The manual should give you instructions on proper testing proceedures.
 
A

aussieflash

Lieutenant Junior Grade
Joined
Feb 5, 2011
Messages
1,004
Re: 135 Mariner makes no sense.

After running ,remove plugs and inspect.compare left bank to right and report back.If your testing in river and bogging under load id start with checking the Stator.How many rpm in forward are you getting.
 
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