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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#1
08-04-2010, 05:36 PM
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Newbie with questions
First post...This is a cool web site. I always like forums sites about things you own that people help one another....
I bought my son a Carbide 150, well maybe a little for me also...I am new to the machine but not powersports. I have owned many quads, dirt bikes and such thru the years, but I have no idea what this is in the pics. I am assuming its for some type of emissions? Should the other end be connected to something? I cant find it in my parts listing at all. Any help is appreciated. Oh the little silver piece is piped to the exhaust. Last edited by pittsburgh-05hd; 08-04-2010 at 05:41 PM. 
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#2
08-04-2010, 05:48 PM
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Looks like a breather for CARB regulated emissions. A lil' different looking than my setup, but it should be left open, and it should be fastened to something. Welcome to the group!
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#3
08-04-2010, 05:56 PM
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Thats what I thought. The exhaust has a small T that is piped to the silver piece in the pic. Then a rubber hose it run up to the black plastic end. I am assuming I can eliminate this. I am bending my own exhaust and putting a FMF shorty exhaust on it when I noticed it.
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#4
08-04-2010, 06:08 PM
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Yep, thats exactly what it be then. It should be ok with out it, my hose dry-rotted, and was running it without it with no problem, until I got to Ace hardware and replaced it. I really don't understand what it does, but some tree huggin' hippies on the left coast do I bet! lol
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#5
08-04-2010, 06:10 PM
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Are ya doing the uni air filter and rejetting with that FMF shorty exhaust?
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#6
08-04-2010, 06:22 PM
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You can plug the hole on the exhaust or weld in a piece of pipe and get rid of that stuff
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#7
08-04-2010, 06:46 PM
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I'm not a "tree-hugger" but these emission valves come on everything from 50cc-250cc engines.I've removed them off all the ones I've had. I was curiuos as well and it's a one-way valve like a pvc valve that the older motors had. My assumption is that it is to trap fuel vapor and attempt to burn it before exiting the tail pipe.All the engines ran better with higher rpm's after removal.
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#8
08-04-2010, 07:04 PM
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Well if you've removed 'em you're definitely not a tree hugger! lol It's a great question, what exactly do these things do? It was to my understanding, and I may be wrong on this, after talking to someone who eats, sleep and breathes small engines, that when your timing is retarded by the mandatory EPA 2 degrees, your actually putting more fuel vapors in the air. This could correct that release of vapors??
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#9
08-04-2010, 07:41 PM
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Sorry went to dinner. I have a K&N style filter from a race kart that I was going to reuse and use an outerwear with the exhaust upgrade. I just finished the 5 hour breakin and the kart is running lean from the factory but not too bad. I have rejetted by banshee a hundred times but not too many 4-strokers. I am 1000' above see level, any suggestions?
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#10
08-05-2010, 08:54 AM
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welcome to the group
when you put your new exhaust on & uni probaly start trying 130 jet and up
__________________
olderthan 2008 tomberline punisher 1500 spring 12g sliders 30mm cv pumper carb uni filter no rev cdi polaris xlt snowmobile shocks for front w/550 magnum springs & blaster fronts on rear and another buggy built working on mods gk-13 white spring 17 gram sliders so far
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#11
08-05-2010, 04:01 PM
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With an open air filter such as the K&N, and an unrestricted exhaust like the FMF shorty, the jet size range at sea level is 130-135. With elevation the jet size goes down, but in your case not much at all like 127.5 - 132.5. So I concur with olderthan by hitting that middle of 130. Boy, that was a long walk to the well for an I agree! lol
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#12
08-05-2010, 04:24 PM
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i live at 5500' i run 122.5 or 125
in my 30cv pumper i would start w/130 and go from there
__________________
olderthan 2008 tomberline punisher 1500 spring 12g sliders 30mm cv pumper carb uni filter no rev cdi polaris xlt snowmobile shocks for front w/550 magnum springs & blaster fronts on rear and another buggy built working on mods gk-13 white spring 17 gram sliders so far
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#13
08-05-2010, 04:27 PM
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Where was the other end of that? I have never seen that on a Carbide. Seen in on a few other china machines, but never an ASW machine. Is it brand new?
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#14
08-06-2010, 09:38 AM
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Yes it is brand new and bought at Tractor Supply. There is about a 1/4 T pipe that connects to the exhaust pipe. The 1/4 pipe then connects to that silver thing in the pic then the rubber tube to the black plastic cap thingie in the pic...Sorry for the "high tech" terms but I think the only one that knows what it actually does is a tree hugger in Cali...
Thanks for the jetting information...
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#15
08-06-2010, 10:12 AM
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thats for carb-emissions
to suit the gov on imports remove if you want to will help on power w/uni jets and dif exhaust
__________________
olderthan 2008 tomberline punisher 1500 spring 12g sliders 30mm cv pumper carb uni filter no rev cdi polaris xlt snowmobile shocks for front w/550 magnum springs & blaster fronts on rear and another buggy built working on mods gk-13 white spring 17 gram sliders so far
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#16
08-06-2010, 05:38 PM
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Ts and them box stores just got in touble I believe for having these without that stuff so it's probly new. My Joyner had one looks just like that
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