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90 HP Johnson V4 carburetor flooding after rebuild

CarMech1969

CarMech1969

Regular Contributor
Hello all, it's been a while!

Was just wanting to share my experience.
I ordered a couple of carburetor repair kits to rebuild the carbs on my engine.
When I got done with that, I remounted the carbs, hooked up the fuel hose, and gave the primer bulb a bunch of pumps.
When the bulb wouldn't get hard, I noticed that gas was spilling out of the lower carb!
I tapped on the carb, thinking that maybe the float got hung up somehow. No change.
I then drained the carb, and tried to prime it again.
Still flooding.
I then pulled the carb off, removed the float bowl, and lifted the float off to have a look at the needle and seat.
Clean as a whistle.
I did notice however, that when operating the needle and seat by hand, a very small amount of hanging up or sticking could be felt.
I thought that was strange, so I decided to pop the old needle and seat back in to see what would happen.
Remounted the carb again - and this time, I could pump the primer bulb until it was hard, and no dripping from the carb.
What gives?
Has anyone here ever had something like this happen?
Did I damage the new needle and seat somehow? Or is it likely that it is just defective?
I was very careful when working on the carbs, and cleaned everything meticulously.
Any comments, feedback, or experiences that you may like to share would be great!

Thanks.

CarMech1969
 
My opinion only.----Those needles are often replaced because they come in the kit.----If it runs fine with old one then you are good to go.
 
This week I used Sierra kits to refurbish my carbs,('92 carbs to use on my '89 Johnson 70.) Two of the float needles did not seal properly. These were the solid, no rubber tip types, which I have historically preferred, but the Sierra needle and seat were not good. Several other small bits from the kits were not up to a high standard as well..

I caught the needle problem on the bench, so it was easy enough to put the old rubber tip needle and seat back in the carbs.
 
doryman said:
This week I used Sierra kits to refurbish my carbs,('92 carbs to use on my '89 Johnson 70.) Two of the float needles did not seal properly. These were the solid, no rubber tip types, which I have historically preferred, but the Sierra needle and seat were not good. Several other small bits from the kits were not up to a high standard as well..

I caught the needle problem on the bench, so it was easy enough to put the old rubber tip needle and seat back in the carbs.
Click to expand...

Imagine that - when new parts work worse than the old ones!

CarMech1969
 
After contacting the company I bought the kits from and explaining to them what happened, I was told that they would send me another kit.
We'll see what happens.
Will keep you all posted!

CarMech1969
 
Today, I got around to redoing the lower carb with the parts I received - and this time, the primer bulb pumps up and gets hard! Yippee!!
I ran the motor on muffs and it seems good, the idle seems ok.
Just have to dump it in the lake and take it for a test run, and hopefully, all will be good.
Anyhow, a lesson I learned about this experience is THIS:
Name brand parts means nothing anymore. They buy the parts from all over the world, and slap it in a bag/box their name/stickers on them.
That being said, I have a Sierra water pump on my motor, and it installed nicely and worked great right from the get-go.
I've had similar experiences with automotive parts as well. Name means nothing. The parts are coming from who-knows-where...and it's either they are good parts, or they are not.
Good day folks, and thanks for reading!

CarMech1969
 
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