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1978 XS 1100 43000 miles.I bought this bike for junk out of a guys back yard. Went though the bike cleaning carbs, electrical connections, new battery, change oil, filter ect. Went to a MAC 4 into 1 header pod filters rebuilt the carbs 47.5 low speed jets 145 mains floats are 1.012" bike run well except slobbers badly at 5000 to 7000 RPM. At 7000 it pulls very hard.Needle was set at middle notch,fourth notch,and bottom notch with little or no change.Any help would be great.
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Is there a reason you went to a #47.5 pilot jet . That seems more than you might need. Have you tried a #45 pilot jet. I believe it's recommended going up one pilot jet size for every three main jet sizes you increase as a starting point.BDF Special
80SG Vetter bagger 1196 Wiseco big bore kit, Mega Cycle Cams, slotted cam gears, ported and flowed head, bronze intake seats, Dyno Jet kit, Dyno coils and Mikes XS air pods, Venture cam chain adjuster,Geezer's regulator, Clutch mod, Mac 4 into 1 with custom built and tuned baffle, Oil cooler,MikesXS emulators mod.
Dyno tuned to 98 hp at the rear wheel. -
Thanks TinmanComment
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And keep your needle set to raise as late as possible. The 4-1 is notorious for midrange rich. Too large a main jet and a steep taper needle make this worse.Healthy is merely the slowest rate at which you can die
Some people will tell you that slow is good - and it may be, on some days - but I am here to tell you that fast is better. I’ve always believed this, in spite of the trouble it’s caused me. Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba….Hunter S. ThompsonComment
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usually when its bogging down around 5000rpm,
the mains are to rich, but i think both
your main and pilot jets are probably to big,
id put stock pilots to start with and try the main jets that you have atm,
if it still bogs down drop the main jet a size or 2,
be careful also not to go to rich with the mixture screw settings.pete
new owner of
08 gen2 hayabusa
former owner
1981 xs1100 RH (aus) (5N5)
zrx carbs
18mm float height
145 main jets
38 pilots
slide needle shimmed .5mm washer
fitted with v/stax and uni pod filters
[url]http://www.youtube.com/watch?v=3pA8dwxmAVA&feature=mfu_in_order&list=UL[/url]Comment
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