View Full Version : 5 HP Briggs & Stratton idle.
07-02-2007, 05:37 PM
My rototiller 5 HP B&S will only idle.
When I give it gas it sputters puts out black smoke and acts like its going to die.
I had a mechanic look at it , he put in a spark plug, diaphram and new gas.
Still didn't help.
Michael J. Donovan
07-02-2007, 05:38 PM
thought you would get more assistance with your problem in this forum so I moved it here for you
07-02-2007, 06:37 PM
The carb. needs to come off then spray all ports and passages with carb & choke cleaner with the small straw then re-assemble.
Whats the model and type numbers off the engine ?
07-02-2007, 06:55 PM
I can't see a model or type.
07-02-2007, 06:57 PM
Thanks,I'll try that.
I didn't see a model or type.
07-02-2007, 07:07 PM
It should be stamped in the top of the flywheel cover near the spark plug.
07-02-2007, 07:22 PM
There are #'s going down the side of the cover.
They are 13202 06040 01 76121507
Hope that helps you.
07-02-2007, 08:04 PM
OK, Those numbers tell me you have the old style adjustable carb, Remove the adjuster and the main jet behind it. You will see three small holes, Make sure these are open along with the main jet hole and both fuel pick-up tube screens. When re-assembled open the adjuster one turn for initial start-up then adjust from there.
07-02-2007, 08:09 PM
"13202 06040 01 76121507"
Not quite right!
Model should be 6 digits. It's probably a 132202?
06040 That should be 4 digits and it'll probably start with a 0, 2 or 4.
Second digit should be a 0, 1, 2, 3 or 4. No 6's??
01 That part doesn't matter.
76121507 built Dec 15, 1976
You might try turning the needle valve in a little bit.
07-03-2007, 11:45 AM
I took the carb apart and cleaned it out and still only above an idle.
I have to have the choke all the way out to get it to run, as soon as I put the choke in it quits.
I tried keeping the throttle wide open when closing the choke, it will rev up a little the dA little black smoke comes out also when I do this.
Thanks for all your help.
07-03-2007, 11:53 AM
How many turns do you have the adjuster opened ?
07-03-2007, 09:42 PM
I tried more but that was worse.
07-03-2007, 11:46 PM
Does you carb. look like this one ?
Remove the adjuster and the main jet behind it. You will see three small holes, Make sure these are open along with the main jet hole and both fuel pick-up tube screens
If so did you clean it as mentioned above ?
Did you replace the carb. to tank gasket and carb. to engine gasket ?
If you are having to apply the choke to make it rev up higher that is a sign of running lean (Vacuum leak/Something still plugged in the carb).
If you are sure everything is open in the carb and new gaskets are installed you may just check the flywheel key. It could be partly sheared, Not very common on belt drive engines but very possible.
07-05-2007, 12:04 PM
That is exactly what it looks like.
I don't know any parts by name and since the drawing only has #'s which one's are which.
Sorry for being a novice but I've never taken one of these apart.
The gasket wasn't replaced so I need to do that. Do you have a part # for it?
I'll take the carb. off again and try all these things.
Thanks again for taking the time to help me.
07-05-2007, 02:41 PM
"I don't know any parts by name and since the drawing only has #'s which one's are which."
Look in back of the manual.
It's a pain switching back & forth, so sometimes I'll make a copy of the pdf and switch back & forth between them. One with the parts diagram and one to the description.
07-05-2007, 03:05 PM
Do you have the web site with the pdf file on it.
I'm not in the repair bus. I just have this at home and am trying to get it going.
07-05-2007, 04:15 PM
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