Re:Need Advise from carb guru
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TOPIC: Re:Need Advise from carb guru
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digger (User)
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Need Advise from carb guru 5 Years, 1 Month ago
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This bike was bought over the winter just started riding it. 2OOO ROAD* WITH Barons BAK, Cobra pipes.Owner said dealer put the jet kit in removed the stock jets. I`m only getting about 33 mpg (not highway miles)and a cough when decelarating/downshiftimg and twisting the throttle.Mpg seems low from what i see on here.Thanks in advance for the help you guys are great at it. |
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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Non guru here
Dealers usually jet too rich. You will need to open the carb up and see what you have in there right now.<br><br>Post edited by: Musky, at: 2007/04/28 14:16 |
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digger (User)
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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Hey Musky thanks.Are the jet sizes stamp on them and will i have to take carb off to do it.Got a box of parts with bike maybe the stock jet set is there would that set be to small. |
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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Digger--
They are indeed stamped... here's the stock main jet and needle from my '04 Roadie... these are Mikuni jets, which are numbered differently than Dynojet jets, but there's a comparison table in the Tech Tips section under "Carbs" to show you how the two types differ. 
RK |
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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Hey digger
The stock main for the 1600 is a Mikuni 165. They are marked. Mik and Dyno use a different system so you can't swap number for number. The stock main might or might not be too small. We need to know what you have for a main, pilot, needle, and PMS to start. You can check the jets and needle without taking the carb off but you will need to take the tank off to check the needle. |
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digger (User)
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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Hey Musky found some jets i got a 175,170,165 also a 35,40. found a paper from the BAK looks like it may have the 172.5 main, needle valve says 40 on paper on 5th clip if it has not been readjusted.Thanks for the reply. |
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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The Mikuni also has the tradwmark square in a square stamped on the jet .....The dyno jets run in multiples of 5 ......165,170,175 etc...but like the guys said need the setup before they can advise you.........Coug  |
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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digger wrote:
Hey Musky found some jets i got a 175,170,165 also a 35,40. found a paper from the BAK looks like it may have the 172.5 main, needle valve says 40 on paper on 5th clip if it has not been readjusted.Thanks for the reply.
5th groove is good for checking the main with the WOT but you don't want to run it that way all the time.
I have the BAK with Cobra Lo-Boys
170 Mik main
35 pilot
Needle on 4th
PMS at about 2 1/4
Poted manifold
Around 44 mpg
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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digger wrote:
Hey Musky found some jets i got a 175,170,165 also a 35,40. found a paper from the BAK looks like it may have the 172.5 main, needle valve says 40 on paper on 5th clip if it has not been readjusted.Thanks for the reply.
Your are running rich.
Lots of good advice here but you're going to have to take that sucker off to see what you have.
Before you take it off, check the float level and go out and do the WOT test.
If you have a BAK then it's a high probability that you have Mikuni jets in it. Good guess on the 172.5 (too fat)
Need to know the other specs on your bike.
Pipes ?
Internal mods ?
Stock carb ?
Doc
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digger (User)
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Re:Need Advise from carb guru 5 Years, 1 Month ago
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Hey Roadkill got the conversion table looks like dyno is stamp with (dj175) ones i got are just stamped 170 with a r on top half. Have to pull it apart this week I``ll get back to you guys. |
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