Tweet
my all stock '80 xs1100sg is running leaner on 1+2 than on 3+4. bike runs like new(very strong with no issues at all) 13,600 miles, new spark plugs. plugs 1+2 are white 3+4 are a very little bit grey. any opinions? thanks
-
-
They need richening up then!
XS1100F 1980 European model. Standard. Dyna coils. Iridium plugs. XS750 final drive (sometimes). Micron fork brace. Progressive front springs. Geezer regulator/rectifier. Stainless 4 into 2 exhaust. Auto CCT (Venturer 1300) SOLD. New project now on the go. 1980 European model. -
Need more raw data on your machine before any valuable help can be offered,
remember GIGO?'78 E "Stormbringer"
Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).
pics http://s1209.photobucket.com/albums/...tormbringer45/Comment
-
sorry, i think my question should have been why leaner on one side than the other? these carbs have not been off the bike or fooled with since new.
Comment
-
Float level changed? ( Plastic float soaking up gas )Originally posted by 650mark View Postsorry, i think my question should have been why leaner on one side than the other? these carbs have not been off the bike or fooled with since new.
Blockage in idle air bleed? ( Dirt or varnish in jet )
Blockage in the idle needle seat? ( Dirt or gum in seat or needle )
Disfunction in the slide operation? ( hanging open )
All of the preceding could be a cause, and happen without any input on your parts, other than neglect in maintenance of the air filter.
Tell us what you have or haven't done, and we'll give you some better answers.
CZ
Comment
-
I would say that if you are going to monkey with the carbs, you need to color a set of plugs for each range of throttle. Start high, check plugs, them middle range, the low range. Blockage in the air bleeds makes the fuel richer. If the floats are heavier then the fuel level would be higher (richer). If the slides are hanging open, again, I think there would be a richer condition.Originally posted by CaptonZap View PostFloat level changed? ( Plastic float soaking up gas )
Blockage in idle air bleed? ( Dirt or varnish in jet )
Blockage in the idle needle seat? ( Dirt or gum in seat or needle )
Disfunction in the slide operation? ( hanging open )
All of the preceding could be a cause, and happen without any input on your parts, other than neglect in maintenance of the air filter.
Tell us what you have or haven't done, and we'll give you some better answers. CZSkids (Sid Hansen)
Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.
03 Honda ST1300 ABSComment
-
have u synced the carbs,
if the left bank is out from the right bank
then that could cause a similar problem
to what ur experiencing.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
-
I would say the bolded section is the key. 30 years is a long time for crap to build up....Originally posted by 650mark View Postsorry, i think my question should have been why leaner on one side than the other? these carbs have not been off the bike or fooled with since newNathan
KD9ARL
μολὼν λαβέ
1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters
Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner
In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.
Theodore RooseveltComment
Comment