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12-06-2018, 11:36 AM | #1 |
Not Yet Wild
Join Date: Dec 2018
Posts: 11
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2007 ezgo txt backfires and wont rev up
i have a 2007 ezgo txt with 295 engine. it backfires threw carb and wont fully rev up. i have replaced carb,fuel filter,fuel pump,muffler,sparkplugs,all cables, when i pull choke it will run but backfires and shoots flame from carb and also wont rev up high at all. what could this be?
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12-06-2018, 02:03 PM | #2 |
Getting Wild
Join Date: Oct 2018
Location: Bowling Green, KY
Posts: 95
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Re: 2007 ezgo txt backfires and wont rev up
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12-06-2018, 04:17 PM | #3 |
Gone Wild
Join Date: Dec 2010
Location: Woodstock,GA
Posts: 1,088
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Re: 2007 ezgo txt backfires and wont rev up
Check timing
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12-06-2018, 04:51 PM | #4 |
Gone Wild
Join Date: Aug 2009
Location: Santuck,Al
Posts: 1,747
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Re: 2007 ezgo txt backfires and wont rev up
Remove the carb,dismantle & clean it well to be sure all jets/passages are open .
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12-06-2018, 05:50 PM | #5 |
Gone Wild
Join Date: Dec 2010
Location: Woodstock,GA
Posts: 1,088
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Re: 2007 ezgo txt backfires and wont rev up
Here is how this works.
Piston going down, intake valve open, vacuum created pulls air fuel into combustion chamber. (cylinder) piston going up, valves closed! you have compression and ignition. If your getting compression, ignition out the carb. The intake valve is still open (should be closed) so could be 1,spark timing, Not likely on this engine 2, valves need adjusted 3, timing belt jumped. |
12-06-2018, 07:02 PM | #6 |
Not Yet Wild
Join Date: Dec 2018
Posts: 11
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Re: 2007 ezgo txt backfires and wont rev up
I have checked valves and adjusted. All new muffler.
New plugs. All new cables all of them. New carb new fuel pump Will start will choke but backfires a flame out carb and wont rev up. I am running out of things to check |
12-06-2018, 09:31 PM | #7 | |
Gone Wild
Join Date: Dec 2010
Location: Woodstock,GA
Posts: 1,088
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Re: 2007 ezgo txt backfires and wont rev up
Quote:
What your are describing is how an engine will run with valve timing off a 1/2 or one clog on the belt. That's what times the valves with the pistons. |
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12-06-2018, 10:19 PM | #8 |
Not Yet Wild
Join Date: Dec 2018
Posts: 11
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Re: 2007 ezgo txt backfires and wont rev up
What is the steps to check that? Do i have to pull the engine?
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12-06-2018, 10:35 PM | #9 | |
Gone Wild
Join Date: Dec 2010
Location: Woodstock,GA
Posts: 1,088
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Re: 2007 ezgo txt backfires and wont rev up
Quote:
Also there was a guy on here last summer had same issue as you. He found that the small hole in his cam gear (that is used for the locating pin in the cam) had long gated, making the cam timing to be off. |
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12-07-2018, 05:13 AM | #10 |
Gone Wild
Join Date: Dec 2010
Location: Woodstock,GA
Posts: 1,088
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Re: 2007 ezgo txt backfires and wont rev up
The new carb you got, is it one of those china carbs?
If so you will most likely need to take it apart and clean it, as stated earlier. |
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