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so im still stuck on why #2 cylinder not getting warm cleaned the carbs 3 times and still nothing its getting fuel to the plug and she has got compression. what could be my problem?
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I'd be looking at the coil, the wiring to the coil and the spark plug wire. -
The wiring TO the coil shouldn't make a difference. I cant remember if anyone told you this before but have you tested the resistance in that coil or the same in the plug cap?
Also, pickup coil wire problems can be deceptive sometimes.Greg
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”
― Albert Einstein
80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.
The list changes.
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Swap wires between 2&3, see if problem moves to 3.If so the coil,wire,cap etc. If 2 stays cold then carb or plug. Am Assuming you have compression on 2.79SF
XJ11
78EComment
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Did you remove the spark plug cap and cut the wire some?You could have some corrosion.1980 XS1100 SG
Inline fuel filters
New wires in old coils-outer spark plugs
160 mph speedometer mod
Kerker Exhaust
xschop K & N air filter setup
Dynojet Recalibration kit
1999 Kawasaki ZRX1100
1997 Jeep Cherokee 4.5"lift installedComment
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With the wasted spark system these bikes employ, if the problem is in the coil, it is in both 2 and 3. So it has to be in the plug, the wire, or the cap.
I would do as suggested and swap plug wires between 2 and 3 and see if it moves, then swap plug caps and see if it moves.Life is what happens while your planning everything else!
When your work speaks for itself, don't interrupt.
81 XS1100 Special - Humpty Dumpty
80 XS1100 Special - Project Resurrection
Previously owned
93 GSX600F
80 XS1100 Special - Ruby
81 XS1100 Special
81 CB750 C
80 CB750 C
78 XS750Comment
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Plug cap problems
Check the plug caps. On the XJ1100 the #2 & #3 caps are long. Pull from plug and look inside, there is a screw. Unscrew the screw and a resistor will fall out with a washer and small spring, do this over some paper to catch the small parts. My #3 resistor was awash with carbon and OPEN
. I replaced the resistor with 1/8" diameter brass welding rod cut to the same length. Problem cured. I later did the same thing to the other caps. Use dielectric grease inside to stop corrosion.
My $ worth
Dell82Dell82
Houston, TX
82' XJ1100J Maxim "LASERMAX"
SOLD 86' Kawasaki Voyager XII, 1200cc SOLD
SOLD 82' CB450SC Nighthawk, FOR SALE SOLD
SOLD 82' CB450SC Nighthawk, parts bike SOLDComment
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fire
i'd also check that plug in that clylinder. i have seen plugs that were a couple weeks old be shot. even tough they look new especially if it is a ngk they will go bad just screwed in the clylinder.switch plug around and see if problem follows the plug if not i'd look at plug wires or shoot some gas in the clylinder and put plug back in and see what happens.79 xs 1100 spec & 80 xs 1100 gComment
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figured it out i think....the bike runs beautiful with the baffle in but when its out the bike is barely rideable. the bike has 140 jest so i guess ill ride it with the baffle in.
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These bikes do need soem back pressure to run properly, it seems odd it would only effect one cylinder though.Life is what happens while your planning everything else!
When your work speaks for itself, don't interrupt.
81 XS1100 Special - Humpty Dumpty
80 XS1100 Special - Project Resurrection
Previously owned
93 GSX600F
80 XS1100 Special - Ruby
81 XS1100 Special
81 CB750 C
80 CB750 C
78 XS750Comment
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I think that one sounds like crap with the baffle removed.Nathan
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
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Last edited by bikerphil; 07-13-2011, 03:48 PM.2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
☮Comment
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If a baffle is shot or removed it can cause exhaust interference and it can affect only one cylinders efficiency to expel burned fuel.Skids (Sid Hansen)
Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.Comment
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