1986 EZ Go Back Firing

Nikenat02 · 05-15-2013, 08:01 AM

Please Help! ImageUploadedByTapatalk1368623095.079724.jpgI have a 1986 EZGO Marathon gas golf cart. I changed out the in-line fuel filters and all hoses. I've put a brand-new fuel pump on it. The carburetor had been Cleaned out four times and the golf cart is still backfiring when I let off the pedal. The cart had a 2 or 3 inch lift kit on it as well as 22 x 11 x 8 I believe tires and rims. The car is losing speed when going up hills Steephill almost come to the plate. But on straightaways it runs wide-open like a champ but still back fires. Do I need a new carburetor to stop the backfiring and what will help me quit losing speed/no pull going uphill? Does it need a new controller or possibly new belts?

sonora · 05-15-2013, 08:19 AM

Is it 2 stroke or 4 stroke? If it's a 4 stroke have you adjusted the valves yet?

sassycat · 05-15-2013, 08:29 AM

you gotta give it the 2 stroke poke

this fixed my backfire problem forever..a spring from a bic ink pen done the trick with a lil tuning and never a problem since..
this should fix you right up

thank brewcitymusic for it

http://www.buggiesgonewild.com/gas-e...ing-could.html

Nikenat02 · 05-15-2013, 10:24 AM

2 stroke. I'm going to try this when I get home.

sassycat · 05-15-2013, 10:45 AM

i had to learn this myself..mine was back firing everytime i let off and mashed the gas because the butterfly is supposed to close in the carb when you let off the gas iirc

if spring is gone you do,or will have this problem,and it will blow your crankshaft seals "2" useaully the one on the clutch side first.
then you will have no or very low power..if you spray wd40 near the engine behind the clutch where the shout sticks out,while running on stands,and it speeds up and runs good,this means you need new seals to have the power potential the motor really has..
like brew used to say 22 inch tires and 22-23mph all day long

i have a "small" big block now tho

1fast67 · 05-15-2013, 10:37 PM

Quote:

Originally Posted by sassycat

you gotta give it the 2 stroke poke

this fixed my backfire problem forever..a spring from a bic ink pen done the trick with a lil tuning and never a problem since..
this should fix you right up

thank brewcitymusic for it

http://www.buggiesgonewild.com/gas-e...ing-could.html

Yep. It helped me out too.

Sent from my SGH-T999 using Tapatalk 2

sassycat · 05-16-2013, 09:05 AM

must have worked so good he hasnt made it home yet

Nikenat02 · 05-26-2013, 09:54 AM

Still backfiring :(. I've ordered a new carb. The one I'm running is the original. It's a small $75 needed upgrade. Will it help the backfiring. Who knows?

Nikenat02 · 05-26-2013, 09:54 AM

Quote:

Originally Posted by sassycat

i had to learn this myself..mine was back firing everytime i let off and mashed the gas because the butterfly is supposed to close in the carb when you let off the gas iirc

if spring is gone you do,or will have this problem,and it will blow your crankshaft seals "2" useaully the one on the clutch side first.
then you will have no or very low power..if you spray wd40 near the engine behind the clutch where the shout sticks out,while running on stands,and it speeds up and runs good,this means you need new seals to have the power potential the motor really has..
like brew used to say 22 inch tires and 22-23mph all day long

i have a "small" big block now tho

Where again do I spray the WD-40?????

Nikenat02 · 05-26-2013, 10:37 AM

ImageUploadedByTapatalk1369582836.580336.jpg ImageUploadedByTapatalk1369582863.607362.jpg ImageUploadedByTapatalk1369582893.356170.jpg ImageUploadedByTapatalk1369582913.783408.jpg ImageUploadedByTapatalk1369582924.630161.jpg
Looks like something's wrong. We're do I start friends?

05-15-2013, 08:01 AM	#1
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16	1986 EZ Go Back Firing Please Help! ImageUploadedByTapatalk1368623095.079724.jpgI have a 1986 EZGO Marathon gas golf cart. I changed out the in-line fuel filters and all hoses. I've put a brand-new fuel pump on it. The carburetor had been Cleaned out four times and the golf cart is still backfiring when I let off the pedal. The cart had a 2 or 3 inch lift kit on it as well as 22 x 11 x 8 I believe tires and rims. The car is losing speed when going up hills Steephill almost come to the plate. But on straightaways it runs wide-open like a champ but still back fires. Do I need a new carburetor to stop the backfiring and what will help me quit losing speed/no pull going uphill? Does it need a new controller or possibly new belts?
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16

05-15-2013, 08:19 AM	#2
sonora Not Yet Wild Join Date: May 2013 Posts: 6	Re: 1986 EZ Go Back Firing HELP Is it 2 stroke or 4 stroke? If it's a 4 stroke have you adjusted the valves yet?
sonora Not Yet Wild Join Date: May 2013 Posts: 6

05-15-2013, 08:29 AM	#3
sassycat Gone Wild Join Date: Sep 2012 Location: bikini state Posts: 2,715	Re: 1986 EZ Go Back Firing HELP you gotta give it the 2 stroke poke this fixed my backfire problem forever..a spring from a bic ink pen done the trick with a lil tuning and never a problem since.. this should fix you right up thank brewcitymusic for it http://www.buggiesgonewild.com/gas-e...ing-could.html

05-15-2013, 10:24 AM	#4
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16	2 stroke. I'm going to try this when I get home.
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16

05-15-2013, 10:45 AM	#5
sassycat Gone Wild Join Date: Sep 2012 Location: bikini state Posts: 2,715	Re: 1986 EZ Go Back Firing HELP i had to learn this myself..mine was back firing everytime i let off and mashed the gas because the butterfly is supposed to close in the carb when you let off the gas iirc if spring is gone you do,or will have this problem,and it will blow your crankshaft seals "2" useaully the one on the clutch side first. then you will have no or very low power..if you spray wd40 near the engine behind the clutch where the shout sticks out,while running on stands,and it speeds up and runs good,this means you need new seals to have the power potential the motor really has.. like brew used to say 22 inch tires and 22-23mph all day long i have a "small" big block now tho

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05-16-2013, 09:05 AM	#7
sassycat Gone Wild Join Date: Sep 2012 Location: bikini state Posts: 2,715	Re: 1986 EZ Go Back Firing HELP must have worked so good he hasnt made it home yet

05-26-2013, 09:54 AM	#8
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16	Still backfiring :(. I've ordered a new carb. The one I'm running is the original. It's a small $75 needed upgrade. Will it help the backfiring. Who knows?
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16

05-26-2013, 10:37 AM	#10
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16	ImageUploadedByTapatalk1369582836.580336.jpg ImageUploadedByTapatalk1369582863.607362.jpg ImageUploadedByTapatalk1369582893.356170.jpg ImageUploadedByTapatalk1369582913.783408.jpg ImageUploadedByTapatalk1369582924.630161.jpg Looks like something's wrong. We're do I start friends?
Nikenat02 Not Yet Wild Join Date: Apr 2013 Posts: 16

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