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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> how to know if it is jetted or not..... /cgi-bin/YaBB.pl?num=1304399291 Message started by dystormy79a on 05/02/11 at 22:08:11 |
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Title: how to know if it is jetted or not..... Post by dystormy79a on 05/02/11 at 22:08:11 i bought my bike a little bit ago. wondering about the carb if it is jetted or not. he said he did it but how can i make sure he did? if he hasn't i want to. and isn't there more than one stage of jet? if it is how can i tell what stage it will be it has a k&n filter and homemade drag pipes on it. |
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Title: Re: how to know if it is jetted or not..... Post by verslagen1 on 05/02/11 at 22:19:42 Is it running ok? with the filter and pipe, most likely if it wasn't jetted, it will run like crap. easiest way? check the plug. |
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Title: Re: how to know if it is jetted or not..... Post by BurnPgh on 05/02/11 at 22:22:46 its not a "stage" issue. There's (more or less) 3 circuits in any carb. Pilot, Mid, Main. Pilot covers idle and low range throttle. Mid covers (you geussed it) mid range throttle, main covers high mid to WOT range. All ranges overlap to some degree and the number of acceptable combinations depending on application, altitude, temperature, barometric pressure etc etc varies from engine to engine slightly within a single make/model and depnds on what you've got going on with intake/exhaust. For instance...I have a Mikuni VM38 carb. I'm running a #10 pilot jet. I could be running a #65 pilot jet or more or anything between the two in half size increments. For mid range there's needle jet size to consider, jet needle size, and jet needle height in relation the slide. Basically...if it's running alright dont go effin with it before you know what you're doing or you'll waste your time most likely if not cause a problem. On the other hand...the previous owner probably did exactly what I just told you not to do. Read Read Read. Use the search function. If/when you do decide to go changing things go slowly and realize before hand thats its a very very tedious process unless you have free and easy access to a dynomometer. |
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Title: Re: how to know if it is jetted or not..... Post by dystormy79a on 05/02/11 at 23:10:22 thanks for the info. my bike is running good seems to be fine i was just wondering. this is my first bike that i am actually riding and of course like everyone else at one point you want more hp. like i said this is my first one so i am trying to learn as much as i can about the bike before i go tinkering with it. (and f it up) :) |
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Title: Re: how to know if it is jetted or not..... Post by dystormy79a on 05/02/11 at 23:11:47 i plan on buying a newer motor and trans one with a 5 speed in it and i want to build that motor before i install it in my frame. just trying to learn as much as i can for that build. |
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Title: Re: how to know if it is jetted or not..... Post by verslagen1 on 05/02/11 at 23:18:01 I just listed all the manuals in another thread and how to check your cam chain. If the bike is over 10k miles, it's good to check it. A lot of people will dump a bike needing maintenance on newbs. Only to have it go unchecked/unaware and it blows up in a few thousand miles. |
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Title: Re: how to know if it is jetted or not..... Post by dystormy79a on 05/03/11 at 00:57:28 my bike has around 15k miles on it so i guess i need to be looking into a few things huh |
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Title: Re: how to know if it is jetted or not..... Post by justin_o_guy2 on 05/03/11 at 03:44:22 Yep,, looking in on the cam chain now is th smart move. If the tensioner opens up & spits that spring out, it gets ugly. |
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Title: Re: how to know if it is jetted or not..... Post by topgunz1 on 05/03/11 at 07:44:47 415245445B5650525906370 wrote:
That is pretty much my bike's life story, now I get to rebuild it. |
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