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17-02-11, 08:39 PM | #1 |
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Running rich?
Hi, all.
I'm in the process of re jetting my carbs and had a few questions. Rode the bike today and here's what I found. 1. Bike seems to have lost torque and power . 2. Engine coughs when blipping throttle down gears. Backfires through exhaust also, but not every time. 3. Power loss seems worse after engine braking for any period 4. When cracking throttle open from idle, engine seems to hesitate. Not a lot but enough for me to notice. 5. The bike generally feels restricted. Are these symptoms of running rich? I'm thinking that after adding larger main jetts I may need to lift the tank and get a performance air filter to get more air in? Any help apriciated. Cheers, Sent from my iPhone using Tapatalk |
17-02-11, 08:56 PM | #2 |
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Re: Running rich?
Take spark plug out, does the anode look wet and sooty (too rich) or white (too lean)s a beige colour its ok.
Also check you have put all the pipes on the airbox including the blanking ones |
17-02-11, 09:04 PM | #3 |
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Re: Running rich?
Btw what mods have you made to make you think you need bigger jets?
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17-02-11, 09:12 PM | #4 | |
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17-02-11, 09:45 PM | #5 |
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Re: Running rich?
sounds like you've mucked it up, fitting a can won't cause the symptoms you describe, so I'd guess you had another problem, and now all you've done is cover it with a further one.
lifting the tank will only increase the noise, and changine jets/ mucking about with neddles only makes sense with a free flow filter (something like a BMC RS) and a full exhaust system, anything short of that, leave the jets alone. I'd suggest you return the carbs to standard, find the original problem, and take it from there. Cheers Mark.
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17-02-11, 09:49 PM | #6 | |
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17-02-11, 09:56 PM | #7 |
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Re: Running rich?
I'd guess an air leak, but it's worth checking everything systematically rather than going for one thing to "hopefully" fix it, do a proper job and you don't have to guess.
Cheers Mark.
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17-02-11, 10:00 PM | #8 |
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Re: Running rich?
I think you need to go through a series of elimination.
Check plugs is it rich or lean? Put standard jets in and the can you had before the Beowulf, is it still doing it? Then you should know where to go from there but I suspect either airbox not fitted correctly, fuel line trapped, spark plugs or HT Leads not on properly |
17-02-11, 10:18 PM | #9 | |
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17-02-11, 10:20 PM | #10 | |
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