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Old 01-08-2011, 07:49 AM   #1 (permalink)
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Unhappy 2002 300ex bogs down 3/4 to full throttle

tried but no luck
i got the 130 main put it in adjusted air/fuel to three turns out and same thing bogs down 3/4 to full in every gear. took air box lid off same thing not worse or better. carb is clean blew out the carb ports and other jets has new air filter so thats not it. this is driving me crazy anything else i can do? please help i can do most work my self so throw it at me, thanks in advance Frank
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Old 01-08-2011, 09:37 AM   #2 (permalink)
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Well, I think the main jet is responsible for 3/4 to full throttle, so you are on the right path. The problem is that you haven't said what it is you modified that you need a 130. Without that, nobody can help you. Year, mods etc.
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Old 01-08-2011, 10:08 AM   #3 (permalink)
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Try giving it a little choke and see if it helps. If it does your running lean, if it makes it worse your running rich.
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Old 01-08-2011, 10:49 AM   #4 (permalink)
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Could be the coil, cdi going out, or a fouled plug also.
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Old 01-08-2011, 01:59 PM   #5 (permalink)
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2002 300ex bogs down 3/4 to full throttle
hey guys new here to post but been reading for some time and great stuff and any help would be great like the title says in every gear bike bogs down from 3/4 to full throttle as soon as shift gears runs fine in that gear till that point. Carb is clean as can be and functions fine it has a white bros slip on and a k&n filter, no holes in air box. carb has a 122 main jet and 38 slow air and fuel screws are at stock positions...now has a 130 main jet and air/fuel is three turns out........any help would be great.
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Old 01-08-2011, 02:54 PM   #6 (permalink)
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bogs

3/4 to full is the main jet make sure u have no leaks from the air box to carb look at ur plug see what color the tip is
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Old 01-08-2011, 03:08 PM   #7 (permalink)
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Is it actually boggong or does it act like it's starving meaning wanting to go but it's not? may have to jump up a size on the main, or start looking at the coil OHm it out to make sure it's within spec.
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Old 01-08-2011, 03:18 PM   #8 (permalink)
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it wants to go but cant then when shift to next gear its fine to the same spot on on the throttle, no leaks didnt take plug out yet will do in am
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