SuzukiSavage.com - Carb issue

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Carb issue
04/24/16 at 15:17:47

Howdy
Recently completed a RYCA conversion with a 2004 Savage...issue I have is its not running smoothly. During the build, before remounting the tank, I did a carb tuning using an auxiliary fuel source. I followed the instructions, did the adjustments and the engine ran pretty good. Now that everything is assembled, including a new fuel thingy, it only seems to run, and not that well btw, when the fuel thingy is set to Prime. If I turn the thingy to FUEL, it runs for a few minutes, then it proceeds to run roughly and then stall...
Could this be an issue with the vacuum feed? If so, how do I check it???
Help...!

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Carb issue Reply #1 - 04/24/16 at 15:53:11 Did you plug the vacuum line that WAS supposed to make the stock vacuum petcock work? If you allow it to barely run, leaning on the sidestand, you're starving the cam for oil. Every now and then you need to get it revved up and get something under the sidestand or put it on a jack and level it up.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28657 Tucson Az Gender:	Re: Carb issue Reply #2 - 04/24/16 at 16:30:13 This, is a link...-> Test your Petcock,.. don't just turn it to Prime.. ...
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Suzukisavvy Full Member Offline You're Droolin, While I'm Spoolin Posts: 101 Nebraska, USA Gender:	Re: Carb issue Reply #3 - 04/25/16 at 08:54:43 The float was bad in my bike, perhaps give it a check. Time for a Raptor Petcock
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John E Black YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 39	Re: Carb issue Reply #4 - 04/25/16 at 09:42:49 Had the bike upright but did not plug the vac line...going to try tapping on the float bowl and see if that helps. And going thru the link you sent to try those tips. BTW, I did add a small K&N filter to the engine breather line...could that affect the rough running? Thanks much...hopefully will reply with better news soon!
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: Carb issue Reply #5 - 04/25/16 at 10:36:56 If you adjusted it to run right without the vac port plugged, and now you have it attached to the petcock, it's now way rich. You have to start from square 1 again, do not pass go, goto jail.
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justin_o_guy2

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Re: Carb issue
Reply #6 - 04/25/16 at 11:51:17

Everything you've done is a potential cause.
There are small air circuits on the edge of the inlet. Some have installed a cone filter and covered them. Won't run right.
Take it off, get it running. Put it back.

Before you plugged the vacuum line it was sucking air in that had no fuel in it, less air was going through the carb,to carry fuel, and you adjusted the carb to dump enough gas to run. Then plugged it, yeah, running rich now.

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John E Black

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Re: Carb issue
Reply #7 - 04/26/16 at 09:53:49

I see that now...forgive my inexperience, but finally starting to figure this out. Based on the comments, I'm going to opt for the Raptor petcock and plug the vac intake. Which it seems will solve the problem. And I understand I need to start at square one for tuning.
Before it arrives, in theory, can I not plug the vac fittings on the carb and the stock petcock to at least tune the carb? Or will this only prolong the problem?

Thanks

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DesertRat Serious Thumper Offline I love rat bikes! Posts: 1569 Arizona	Re: Carb issue Reply #8 - 04/26/16 at 11:09:11 NOPE ... the stock p3tc0ck requires the vacuum connection to draw fuel into the carb bowl. You bypass this it no worky, or works until the fuel bowl is empty ... either FIX your vacuum issue or swap for the raptor and plug off the vacuum connection at the carb ... your ONLY choices ...
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Carb issue Reply #9 - 04/26/16 at 11:48:24 Plug the vacuum, put the stock petcock on prime. Might not be exact, but it will be close. And Uninstall the rubber tube that air filter is on unless you are Absotively, Posilutey Sir tin it's not plugging anything off.
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John E Black YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 39	Re: Carb issue Reply #10 - 04/26/16 at 13:06:05 Plugged both and it does run on Prime but understand this is only a temporary fix...just waiting for the Raptor to fix this issue for good. As for the breather line...it is not plugged. But, should I just remove it altogether? or just the filter? Seemed like a good idea at the time... thanks
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: Carb issue Reply #11 - 04/26/16 at 13:35:03 John E Black wrote on 04/26/16 at 13:06:05: As for the breather line...it is not plugged. But, should I just remove it altogether? or just the filter? Seemed like a good idea at the time... No, filter on the end of the line is typical. place in area where it can drip and not make a mess.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Carb issue Reply #12 - 04/26/16 at 15:03:58 If you have installed a new air inlet tube on tye carburetor, take it off. If it runs different, go from there.
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Suzukisavvy Full Member Offline You're Droolin, While I'm Spoolin Posts: 101 Nebraska, USA Gender:	Re: Carb issue Reply #13 - 04/27/16 at 08:53:29 Possible the front carb connecter on the engine block is leaking air. Try starting the bike and spraying starting fluid on the connecter and if your idle increases you have a leak.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Carb issue Reply #14 - 04/28/16 at 16:01:07 My bad,, BTW, I did add a small K&N filter to the engine breather line...could that affect the rough running? I saw added K&N filter and thought he replaced the a ir filter. That's been known to cause problems. But what he did is no biggie. Sorry.
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