Fish-Hawk.Net

Here goes...

1995 90HP Mercury 2 stroke

Just replaced:
-NGK spark plugs
-hose fuel filter
-engine fuel filter
-fuel hose clamps
-carb needles & gaskets

Stuff I did:
-cleaned fuel tanks & filled with new gas
-performed an engine shampoo to remove dirt & grime

Details about the problem:
-this is not a new problem (was present before & after all the above was done)
-once the motor is at normal operating tempature, I slow down....then put in Neutral...it stalls with a lound PSSSSSS
-it start easy after that

Maybe someone could help with this....

Thanks,

FTL

Check to see if all the clamps on your gas supply lines are tight ,If it is sucking air it will stall after throttling down.

FTL,
That sound you get soundslike an air leak. If you have not reolaced the gasline/priming bulb you might have a small crack barely visible to the eye. It's cheap to replace and may fix the problem...larry

I'll check these things....I replaced the fuel line and every clamp...I didn't replace the primer bulb....I'll pick one up tonight

Could also be the fuel tank vent - these stick sometimes....

FTL,
I bet it's the primer bulb.
I went through all that with a 90 merc too 'til a friend in the business mentioned a problem with the stock primer bulbs. Buy the one that says 'Improved Design' on the package or words to the like. It's got a yellow band around one end of the bulb. Got mine at Laurentian but any merc dealer would have it.

I had the exact same problem, just needed to adjust the idle on the carb and poof it was gone.

Flipper wrote:FTL,
I bet it's the primer bulb.
I went through all that with a 90 merc too 'til a friend in the business mentioned a problem with the stock primer bulbs. Buy the one that says 'Improved Design' on the package or words to the like. It's got a yellow band around one end of the bulb. Got mine at Laurentian but any merc dealer would have it.

Flipper,

Is this the one your are taking about?
http://www.mercurypartsexpress.com/Part ... =&compSKU=

Thanks,

FTL

FTL, I can't get to that link without creating an account at Mercury, sorry. They sorely need a seach function on their site too.

You can see a picture of it here:

http://web.continuouswave.com/whaler/re ... rimer.html

Look for the yellow line around one end.

Definitely that solved my problem. The bulb stays hard almost all day now.

Flipper wrote:FTL, I can't get to that link without creating an account at Mercury, sorry. They sorely need a seach function on their site too.

You can see a picture of it here:

http://web.continuouswave.com/whaler/re ... rimer.html

Look for the yellow line around one end.

Definitely that solved my problem. The bulb stays hard almost all day now.

Thanks for the information Flipper,

I'm picking one up at lunch today. The link you have has good information.

This is the one I'm picking up:
http://www-alt.mercurymarine.com/PXImag ... 15_reg.jpg

Thanks again,

FTL

That's the one.

I picked up the primer bulb yesterday & installed it as suggested in the article (pointing to the sky & close to the motor).

I gave a couple of squeezes, raised the idle & gave it a crank and it started right up. Running smoother than ever. Idled nice and smoother & faster accelerations.

All that is left is to get the carbs synched & tuned.

Thanks for all the help,

FTL

Hey glad to hear you are back in business and the bulb repair worked...Larry