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Old Jacobsen B&S Power Edger

vacu-jet slide choke

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#1 markcunningham OFFLINE  

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Posted May 09, 2015 - 09:00 PM

​Hi guys, Name's  Mark and I have a passion for old engines and just fixing things. I have an old Jacobsen Power Edger that uses a Vacu-Jet Slide choke type carb and the issue im having is if i try to close the throttle it sticks as though the throttle plate inside is rubbing stiff against the inner walls. I can close it to stop but it is to stiff for the linkage to operate without bending it. Is there a fix for this or is it a dead end for this carb. Can I get a pulse-jet to compensate it or am i spinning my wheels here on this.

 

Thx in advance.

 

Mark C Cleveland OH


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#2 markcunningham OFFLINE  

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Posted May 10, 2015 - 09:15 AM

​Hi guys, Name's  Mark and I have a passion for old engines and just fixing things. I have an old Jacobsen Power Edger that uses a Vacu-Jet Slide choke type carb and the issue im having is if i try to close the throttle it sticks as though the throttle plate inside is rubbing stiff against the inner walls. I can close it to stop but it is to stiff for the linkage to operate without bending it. Is there a fix for this or is it a dead end for this carb. Can I get a pulse-jet to compensate it or am i spinning my wheels here on this.

 

Thx in advance.

 

Mark C Cleveland OH

I cleaned up the vacu-jet yesterday and didnt get much good results. When after startup the choke must be left open or slightly open to run right and if I open up hte throttle she back fires and spits and sputters. 1 1/2 turns on the needle it should run good there but really doesn't. if i close the choke she just dies. I would consider just upgrading the carb setup if I could and will take suggestions.


Edited by markcunningham, May 10, 2015 - 09:16 AM.


#3 Bolens 1000 ONLINE  

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Posted May 10, 2015 - 09:30 AM

Hello, Do you have the engines model number?



#4 markcunningham OFFLINE  

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Posted May 10, 2015 - 11:33 PM

Where can I find the model number for the engine?



#5 Bolens 1000 ONLINE  

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Posted May 11, 2015 - 06:38 AM

Should be stamped into the engine's shroud



#6 markcunningham OFFLINE  

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Posted May 12, 2015 - 10:28 PM

Should be stamped into the engine's shroud

model 61102 or 81102 hard to see it. then the numbers 0135  01  6509141



#7 markcunningham OFFLINE  

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Posted May 12, 2015 - 10:31 PM

model 61102 or 81102 hard to see it. then the numbers 0135  01  6509141



#8 Bolens 1000 ONLINE  

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Posted May 13, 2015 - 07:32 AM

Here's a break down of your carb, the engine was made 1965

 

The engine should die out when you have the choke fully closed.

 

When you say the engine sputters does any black smoke come out?

 

 

Have you taken out all the jets and let the carb soak over night?

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#9 markcunningham OFFLINE  

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Posted May 14, 2015 - 07:58 AM

Here's a break down of your carb, the engine was made 1965

 

The engine should die out when you have the choke fully closed.

 

When you say the engine sputters does any black smoke come out?

 

 

Have you taken out all the jets and let the carb soak over night?

No not yet on the soaking overnight. No black smoke and one jet on this Vacu-jet carb. Spits and sputters and back fires when accelerating then dies.  Is there a way to upgrade the carb to a newer setup or more modern setup on this motor. 



#10 Bolens 1000 ONLINE  

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Posted May 14, 2015 - 08:30 AM

I would also look into your valve's and ignition as possibly being a problem as well, those carbs are very simple and rarely go "bad"

 

Have you cleaned and set the points?, Tried replacing the condenser ?



#11 DougT ONLINE  

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Posted May 17, 2015 - 07:06 AM

The pick up tube has a check ball in it. Make sure the tube is open and the check ball works free.


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#12 markcunningham OFFLINE  

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Posted May 20, 2015 - 10:44 PM

Points, condensor? Where are they at? This has a magneto with the flywheel



#13 Bolens 1000 ONLINE  

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Posted May 21, 2015 - 06:45 AM

They are behind the flywheel



#14 dodge trucker ONLINE  

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Posted May 31, 2015 - 09:29 PM

1-1/2 turns is a stating point on the mixture, not a hard and fast requirement that it can "only" be set there. get it running and warmed up, and try adjusting that mixture screw one way or the other, may just need to be tweaked fo "that" machine.






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