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  #11  
Old 7th February 2012
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a factory 1200 is a 170 and an 883 is 160 main jets i think. I had a 175 in a 93 sporty with buell heads and cams ect...you dont need that big of a main jet.
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  #12  
Old 7th February 2012
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that thing should run fairly good with any size damn jet....like the other guy said...float..or you messed something up in your rebuild...or igintion is bad....thats my guess and im sticking with it..lol
Make sure all your coil...plug...and what not connections are good too
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  #13  
Old 7th February 2012
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Merc
I have started over if you will by putting the stock jet sizes (42 and 160) back in and stepped away for a breather for now. I have taken rather comprehensive notes on all the things going on here so I don’t lose track of the way things progress be them good or bad. It is easy to get “lost” when making tuning adjustments and I am doing my best to finger this out! But I do agree with you when you said try to go back to “normal” and see what happens there.
Rooster
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  #14  
Old 7th February 2012
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Madnss
I agree with you brother… any jet should iron this problem out. As far as the float level is concerned, I checked the adjustment in accordance with the factory manual to make sure that it was within limits, and it was. I think when I get in tonight I am going to investigate the faulty ignition module the bike sat for several months without running and sitting is WAY worse for any piece of equipment. I think with a stage one kit (since I am moving more air) a 45 jet and a 165 jet should do just fine here. Since I am running a stock air box and mufflers with baffles installed, anything over that would be too rich!
Rooster
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  #15  
Old 7th February 2012
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No mention of the idle mix screw ?

A 45 pilot should flow about 9 % more fuel than a 42

What needle is in there ?

Lets check the slide diaphragm too !

Make sure we have vacuum to the VEOS so the timing will advance and retard when it should
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  #16  
Old 7th February 2012
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Rocketmangb
I put the stock jets (42 and 160) back in there to start from scratch. The slide diaphragm is good to go, I held it up to a light to inspect it and saw no tears or pin holes in it. I also replaced the three vacuum lines hidden under the tank because they were dry rotted pretty bad (got “rubber dust” on my hands when I touched them!). I have heard mixed reviews and sorted advice when it comes to messing with the idle mixture screw. Some say adjust and others say don’t. I know that these bikes run lean from the factory due to EPA and emissions standards. I fear the unknown here brother. I know my way around a car carburetor OK but am still learning on a CV carburetor. Folks tell me if it is lean just step up the jets and call it a day and DO NOT mess with the IMS! What do you think?
Rooster
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  #17  
Old 7th February 2012
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igintion or voes...that voes stuff can get fishy as rocketmangb said
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  #18  
Old 7th February 2012
smay23 smay23 is offline
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Madnss

Got new vacuum lines installed and in the propper routing and location. I wonder if the VOES took a dump?!? I am going to put a spark analyser on it in the morning to check the ignition module. Sure hope that ain't it CHA-CHING! LOL

Rooster
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  #19  
Old 7th February 2012
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A factory Cone ignition is about 70 bones and voes about 45. Good luck!!!
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  #20  
Old 7th February 2012
smay23 smay23 is offline
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Madnss

Thanks for the info buddy and in case you are curious about the outcome check back in a few days to see the result!

Rooster
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