Motor Stalling when I return the shifter to Neutral

Post by **FishToLive** » Mon May 15, 2006 8:24 am

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

Post by **muskymatt** » Tue May 16, 2006 4:09 pm

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.

Post by **Haybay Larry** » Wed May 17, 2006 10:00 am

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

Post by **FishToLive** » Wed May 17, 2006 12:27 pm

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

Post by **ady** » Wed May 17, 2006 2:57 pm

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

Post by **Flipper** » Wed May 17, 2006 8:47 pm

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.

Post by **Mr.J.** » Thu May 18, 2006 5:37 am

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

Post by **FishToLive** » Thu May 25, 2006 8:31 am

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

Post by **Flipper** » Mon May 29, 2006 10:30 am

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.

Post by **FishToLive** » Mon May 29, 2006 10:43 am

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

Post by **Flipper** » Mon May 29, 2006 11:53 am

That's the one.

Post by **FishToLive** » Tue May 30, 2006 7:26 am

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

Post by **Haybay Larry** » Fri Jun 02, 2006 5:24 pm

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