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Wont rev up after Raptor petcock change (Read 148 times)

hairball YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 1	Wont rev up after Raptor petcock change 03/23/15 at 11:22:40 I need a bit of advice or help here, I changed out the old petcock for a raptor petcock and can start bike but choke has to be all the way out and it will just idle and that's all, when I rev up the engine it dies. any suggestions? its a boulevard s40 650 and its a 2006 but I have less than 3k miles on it.
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Dave YaBB Moderator ModSquad Offline SuzukiSavage.com Rocks! Posts: 18324 Camp Springs, Kentucky Gender:	Re: Wont rev up after Raptor petcock change Reply #1 - 03/23/15 at 11:28:47 Did you put a rubber cap over the vacuum nipple on the carb body.....or plug the vacuum hose? If not....it is causing an air leak.
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hotprops Full Member Offline SuzukiSavage.com Rocks! Posts: 180 fort myers fl	Re: Wont rev up after Raptor petcock change Reply #2 - 03/23/15 at 13:33:27 sounds like lack of fuel flow.Did you buy the real real Suzuki part or a knockoff? there was a thread that addressed this and went so far as to specify correct fuel flow in cups per minute . ma by someone can find it and provide linkage . and yes you plugged the vacuum inlet on the carb right?
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Wont rev up after Raptor petcock change Reply #3 - 03/23/15 at 18:10:01 How much did you pay for the Raptor?
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T.Claiborne13 YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 48	Re: Wont rev up after Raptor petcock change Reply #4 - 03/27/15 at 16:54:17 on a side note would the vacuum line being left open(not plugged) cause it not to start as well?
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 29303 Tucson Az Gender:	Re: Wont rev up after Raptor petcock change Reply #5 - 03/27/15 at 18:07:04 T.Claiborne13 wrote on 03/27/15 at 16:54:17: on a side note would the vacuum line being left open(not plugged) cause it not to start as well? It could... leaving the vacuum tap unblocked creates a giant vacuum leak... With no vacuum the engine has a hard time drawing in fuel... No fuel,.. no go... ...
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T.Claiborne13 YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 48	Re: Wont rev up after Raptor petcock change Reply #6 - 03/27/15 at 18:43:47 ok I did the raptor switch and forgot about that until I saw this thread
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 29303 Tucson Az Gender:	Re: Wont rev up after Raptor petcock change Reply #7 - 03/27/15 at 22:38:52 It's very important to block that vac tap... It's not a flaw in the Raptor conversion,... a leak is just as likely in the stock vacuum hose... That tap being open, is like drilling a 1/4" hole in your intake manifold...
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farmerpete YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 4	Re: Wont rev up after Raptor petcock change Reply #8 - 03/28/15 at 18:53:11 Just a side note.. I swapped my petcock for a Raptor recently, and now it runs well, and even "backfires" less than it did with the original petcock. I like the change.
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