Low speed workhorse sputter

morepower · 10-09-2009, 09:36 PM

My 03' workhorse has a low RPM sputter. Running on jack stands with the breather tube removed I can see it pop back through the carb every 4 or 5 seconds while holding steady throttle. Any suggestions for diagnosis?? As always thanks for any advise you guys can offer. I should add the engine has a little blow by from the crank case vent but nothing sevier.

BGW has paid off for me. Ordered tires and a cable from one of the sponsors and got my discount. Thanks BGW!

Boris · 10-09-2009, 09:50 PM

Mo, from what I understand the valves on these EZGO engines need to be tickled semi-regularly. I was told by one of the members, when the carts still run bad and you have changed the plugs and all the rest of the little things, try the adjusting the valves. I can relate to that because the Shovelhead does the same thing when she wants some attention. A little valve adjustment almost always helps her smooth on out.

Good Luck

http://www.buggiesgonewild.com/ezgo-...djustment.html

morepower · 10-09-2009, 10:36 PM

Boris, that is exactly where i was going if no one came with a better suggestion. Thanks, now i can proceed without that nagging feeling I'm waisting time. Does anyone have lash spec for the Robin 350?? Boy, I sure could use a manual - I think I've said that before!!!

. My wife is going to take some pics when I get it out of her parking space. It's nothing but a stocker but it has heritage. This was the grounds crew vehicle at Finley stadium in Chattanooga Tn. It has a big blue NCAA decal on the roof.

tonyton · 10-09-2009, 10:50 PM

Click on the blue "valve adjustment" that boris noted on his post. It will take you to the instructions. There are manuals in the ezgo gas tech section of the home page. The spec you want is .004mm. A quarter turn from the valve will usually get .004-.005mm.http://www.buggiesgonewild.com/ezgo-gas-tech/ Look under "need a manual, diagram or ID...." We got it all!

morepower · 10-09-2009, 11:07 PM

You guys rock!

Boris · 10-10-2009, 09:44 AM

Quote:

Originally Posted by morepower

Boris, that is exactly where i was going if no one came with a better suggestion. Thanks, now i can proceed without that nagging feeling I'm waisting time. Does anyone have lash spec for the Robin 350?? Boy, I sure could use a manual - I think I've said that before!!!

. My wife is going to take some pics when I get it out of her parking space. It's nothing but a stocker but it has heritage. This was the grounds crew vehicle at Finley stadium in Chattanooga Tn. It has a big blue NCAA decal on the roof.

Thats what it is ........ Pull that sticker off of your cart. Too many restrictions and regulations

Set that puppy free

COURTESYCART · 10-12-2009, 12:36 PM

also check your cables for binding. most cables rust internally and cause all kinds of driveability problems. Turn key off and look at throttle on carb while pushing cable down. Does the carb shut all the way? Does the carb open all the way? I woudl try this after you adj the valves.

morepower · 10-12-2009, 12:42 PM

Thanks courtesy, I have adjusted valves and ordered a new cable. The old one was damaged. It got pinched between the skid plate and engine. I ran it after the valves and operated throttle manually. Still popping through carb. May even be worse. I am going to set the valves again to see if it changes anything. Thanks to all for the advise.

sccowboy · 10-12-2009, 12:45 PM

The valves are a bit tricky. I used a feeler guage on mine and caught hell getting it right. I then used the old 1/4 out from touching the valve stem and bingo it worked like a champ. I think I checked it and it was around .006 using that method. btw hows the compression?

morepower · 10-12-2009, 01:11 PM

Boy I'm glad to hear that. I have been adjusting valves most of my life and don't think I have ever had to do it twice. I will go the 1/4 turn method this time. Not sure of the compression yet, I need a different plug adapter for my gauge to check it. But I am very interested to know. I am scared there may be a burnt valve.

10-09-2009, 09:36 PM	#1
morepower Gone Wild Join Date: Oct 2009 Location: Knoxville, Tn Posts: 197	Low speed workhorse sputter My 03' workhorse has a low RPM sputter. Running on jack stands with the breather tube removed I can see it pop back through the carb every 4 or 5 seconds while holding steady throttle. Any suggestions for diagnosis?? As always thanks for any advise you guys can offer. I should add the engine has a little blow by from the crank case vent but nothing sevier. BGW has paid off for me. Ordered tires and a cable from one of the sponsors and got my discount. Thanks BGW!

10-09-2009, 09:50 PM	#2
Boris DELETED Join Date: Mar 2008 Posts: 1,025	Re: Low speed workhorse sputter Mo, from what I understand the valves on these EZGO engines need to be tickled semi-regularly. I was told by one of the members, when the carts still run bad and you have changed the plugs and all the rest of the little things, try the adjusting the valves. I can relate to that because the Shovelhead does the same thing when she wants some attention. A little valve adjustment almost always helps her smooth on out. Good Luck http://www.buggiesgonewild.com/ezgo-...djustment.html
Boris DELETED Join Date: Mar 2008 Posts: 1,025

10-09-2009, 10:36 PM	#3
morepower Gone Wild Join Date: Oct 2009 Location: Knoxville, Tn Posts: 197	Re: Low speed workhorse sputter Boris, that is exactly where i was going if no one came with a better suggestion. Thanks, now i can proceed without that nagging feeling I'm waisting time. Does anyone have lash spec for the Robin 350?? Boy, I sure could use a manual - I think I've said that before!!!. My wife is going to take some pics when I get it out of her parking space. It's nothing but a stocker but it has heritage. This was the grounds crew vehicle at Finley stadium in Chattanooga Tn. It has a big blue NCAA decal on the roof.

10-09-2009, 10:50 PM	#4
tonyton Gone Wild Join Date: Jan 2009 Location: Alabama Posts: 2,120	Re: Low speed workhorse sputter Click on the blue "valve adjustment" that boris noted on his post. It will take you to the instructions. There are manuals in the ezgo gas tech section of the home page. The spec you want is .004mm. A quarter turn from the valve will usually get .004-.005mm.http://www.buggiesgonewild.com/ezgo-gas-tech/ Look under "need a manual, diagram or ID...." We got it all!

10-09-2009, 11:07 PM	#5
morepower Gone Wild Join Date: Oct 2009 Location: Knoxville, Tn Posts: 197	Re: Low speed workhorse sputter You guys rock!

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10-12-2009, 12:36 PM	#7
COURTESYCART Gone Wild Join Date: Nov 2008 Location: Montgomery, AL Posts: 1,463	Re: Low speed workhorse sputter also check your cables for binding. most cables rust internally and cause all kinds of driveability problems. Turn key off and look at throttle on carb while pushing cable down. Does the carb shut all the way? Does the carb open all the way? I woudl try this after you adj the valves.

10-12-2009, 12:42 PM	#8
morepower Gone Wild Join Date: Oct 2009 Location: Knoxville, Tn Posts: 197	Re: Low speed workhorse sputter Thanks courtesy, I have adjusted valves and ordered a new cable. The old one was damaged. It got pinched between the skid plate and engine. I ran it after the valves and operated throttle manually. Still popping through carb. May even be worse. I am going to set the valves again to see if it changes anything. Thanks to all for the advise.

10-12-2009, 12:45 PM	#9
sccowboy It ain't gonna be easy. Join Date: Apr 2008 Location: St. George, SC Posts: 1,480	Re: Low speed workhorse sputter The valves are a bit tricky. I used a feeler guage on mine and caught hell getting it right. I then used the old 1/4 out from touching the valve stem and bingo it worked like a champ. I think I checked it and it was around .006 using that method. btw hows the compression?

10-12-2009, 01:11 PM	#10
morepower Gone Wild Join Date: Oct 2009 Location: Knoxville, Tn Posts: 197	Re: Low speed workhorse sputter Boy I'm glad to hear that. I have been adjusting valves most of my life and don't think I have ever had to do it twice. I will go the 1/4 turn method this time. Not sure of the compression yet, I need a different plug adapter for my gauge to check it. But I am very interested to know. I am scared there may be a burnt valve.

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