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xs650 > > Motorcycle Systems > > Fuel > > Lean jettings |
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MakawaoMark New Member
Joined: Apr 25, 2006 Posts: 5
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Posted: June 10, 2006, 4:17 am Post subject: Lean jettings |
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[php]Took my 34's apart today & real suprise, the main jets are 130!
anual (x3) all say should be 132.5 stock & absolutly every site w/info on theee things say go richer. Whats up with this? Why would someone put in even leaner jets than stock? Bike came from CA around sea level.
Any ideas? Thanks
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jayel 650Rider Supporter
Joined: Apr 16, 2006 Posts: 3417 Location: SE Iowa 1974 TX650A
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Posted: July 21, 2006, 11:22 pm Post subject: Re: Lean jettings |
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CA emission control freaks of the world, how's it run? what color are the exhaust pipes? on chrome pipes blue is lean yellowish is rich
_________________ all it takes is time and money -- Where are we going and why are we in this hand basket? |
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Jack Full Member
Joined: Mar 15, 2005 Posts: 411
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Posted: July 22, 2006, 6:21 am Post subject: Re: Lean jettings |
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When you decide to rejet,use your plugs for this procedure and not your pipes as on coming cool air will discolor pipes. It's seems all the CV34s where jetting lean regardless of the geographical region.........Jack
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artie Full Member
Joined: Jul 22, 2006 Posts: 14
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Posted: July 22, 2006, 7:33 am Post subject: Re: Lean jettings |
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jack i'm looking to buy cable driven carbs for a stock bore 650 with a 2into1 mac pipe and accel coil any segestions mikunis 34-6-8mm
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xsjohn Full Member
Joined: Jul 30, 2006 Posts: 5857 Location: North Carolina USSA
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Posted: July 31, 2006, 12:24 pm Post subject: Re: Lean jettings |
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Have some new kits to fix the BS34............
John Underwood
Last edited by xsjohn on January 2, 2008, 7:50 am; edited 2 times in total |
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Jack Full Member
Joined: Mar 15, 2005 Posts: 411
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Posted: August 6, 2006, 8:10 am Post subject: Re: Lean jettings |
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Artie..........the VM34 round slides are more than sufficient in suppling all the fuel needs of the XS,even with engines mods. They provide excellent fuel economy,along with a noticable increase in throttle response over the CVS stock carburetors. Where as with the 36 and 38VMs,mileage will suffer some what do to low air speed velocity in the venturi and any power gained will only be noticable in the higher RPM range. The 34s are the ticket for street use ...........Jack
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artie Full Member
Joined: Jul 22, 2006 Posts: 14
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Posted: August 8, 2006, 10:42 pm Post subject: Re: Lean jettings |
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thank for all the info on the carbs I've decided to buy the vm34s I'll let you know how I make out thanks again artie
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