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Old 07-13-2017, 05:12 PM
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Join Date: Jul 2017
Location: Anytown, Wa
Posts: 16
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S&s super e problems

I have an 80 ci evo that's a case breather (1991 style) with 10:1 compression, and a big can (has double valve springs) running Santee 50 cal pipes (no baffles).

My bike was setup too rich, it fouled plugs about once a year. It had a .0295 intermediate jet, and a .74 main. Even though it it was rich, it would frequently pop in the carburator when I would blip the throttle. I changed the jets to .028 and .72 respectively. Got it dialed in, but when going at highway speed and I let off the throttle it would snap and pop out the pipes, and it would still pop in the carb while stopped, when I blip the throttle. So I pulled the .028 and put the .0295 back in. I have adjusted the A/F mixture from too lean to too rich, and set it half way in between. So now it still snaps and pops at highway speed when I let off the throttle, it's still popping in the carb when I blip the throttle, and it's cold blooded as hell, meaning starts with the choke fine, but a real pain in the ass by just manipulating the throttle while cranking it....... I'm lost, my bike used to run great, except for fouling plugs.

Oh, I'll throw one more thing in here. Before I began this rejecting adventure, I hadn't been riding my bike much (new family) so I rebuilt my carb, in doing so I discovered who ever helped me set it up originally gorilla fisted the A/F screw, so my carb body HAD a crack in it. Go figure, like I said, it ran fine except for fouling plugs. So I bought just the carb body, and rebuilt the carb (round 2) but now I have that new air bleed change that s&s made...... So like I said, I'm lost...... I know tons of you guys are carb guru's (I'm not new, been on here for years, but my old info wouldn't let me log on, so I had to create a new account.)

Thx in advance for the help!!
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