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| Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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01-17-2010, 02:54 PM
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#1 |
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Not Yet Wild
Join Date: Feb 2009
Posts: 3
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straight pipe exhaust
i have a g2 and i was wondering if it would hurt the motor if i put straight pipe exhaust or even dual straight pipe exhaust on my cart. if it wont do anything to the motor what size pipe should i use?
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01-17-2010, 05:23 PM
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#2 |
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gone yamaha!
 Join Date: Sep 2008
Location: ontario, canada
Posts: 1,424
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Re: straight pipe exhaust
it won't do anything good for power and could possibly hurt your engine if you don't rejet the carb to match your leaner straight pipe.
and if your going stright pipe you might as well go for a higher flow airfilter and then re jet and that will wake the motor up a bit. |
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01-17-2010, 05:48 PM
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#3 |
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Gone Wild
Join Date: Mar 2008
Location: Rockwall, Texas (Dallas / Ft. Worth)
Posts: 7,077
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Re: straight pipe exhaust
Striaght pipe will DECREASE your performance, INCREASE the anger from your neighbors for the extra noise...
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01-17-2010, 06:11 PM
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#4 |
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Gone Wild
Join Date: Jul 2008
Location: Reddick IL
Posts: 11,220
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Re: straight pipe exhaust
LOL i just left a sled site and there is a rant going on about loud pipes save lives(lose trails).
I am 67 and my ears are shot from loud pipes, eh and what you say are my stand by words all day. |
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01-17-2010, 09:13 PM
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#5 |
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Not Yet Wild
Join Date: Jan 2010
Location: Warner Robins, Ga. Macon area
Posts: 45
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Re: straight pipe exhaust
There is no real benefit from looser exaust unless you're turning some serious rpms which is not good for these engines unless they are gone through and balanced and beefed up a bit. In other words stick with stock, Find HP elsewhere.
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01-17-2010, 09:26 PM
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#6 |
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Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,406
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Re: straight pipe exhaust
Maybe he just wants to make noise? and has no neighbors? I say it will not hurt the 4 stroke near as much as it will hurt your hearing
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01-17-2010, 11:09 PM
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#7 |
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Gone Wild
Join Date: Aug 2007
Location: near sacramento,ca
Posts: 1,895
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Re: straight pipe exhaust
it will help if you rejet, i did this to my g9 k&N filter, 152 main and straight pipe. ran real good. BUT really LOUD. not appreciated by wife or anyone else who had to drive it.
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01-18-2010, 09:23 AM
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#8 |
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Not Yet Wild
Join Date: Sep 2008
Location: Melbourne, FL
Posts: 32
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Re: straight pipe exhaust
One Yamaha mechanic told me that some of the G1 years needed backpressure in the exhaust to run properly and some models, I think it was the '82, had a butterfly value between the exhaust port and the muffler to create this backpressure.
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01-18-2010, 09:26 AM
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#9 |
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Not your usual outlaw
Join Date: Oct 2008
Location: Near Lake Geneva, WI
Posts: 20,054
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Re: straight pipe exhaust
2 smokers need the backpressure to run correctly. I wouldnt do it.
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01-18-2010, 10:24 AM
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#10 |
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Gone Wild
Join Date: Sep 2009
Location: Forest City N.C.
Posts: 2,660
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Re: straight pipe exhaust
Yeah loud exhaust is why I have a ringing in my ears today.And I guess standing next to top fuel dragsters when I was a kid.
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