That would work also.
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MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it. -
Ok so I switched the plug wires between 2 and 3. And the problem did not follow. #2 still has no effect on the engine when you take the plug wire off. So I guess back to square one. Uggg. What's my best course now?Comment
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So we have isolated the problem to JUST number two AND eliminated the wires. Basically leaves just 2 things..that cylinders compression is to low or the carb for number 2 is faulty in some way.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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What could cause low compressionComment
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Bad rings, bad valve clearances, bad valve seats ( pitted or burnt) as well as burnt or chipped edges of a valve to name a few possibilities. Pin hole in piston from running way too lean for too long.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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Hmm all sound frighteningly expensive. So compression test seems easiest to test. If its low valve clearances was the most recent change. Maybe I got something wrong.Comment
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Do the compression check on all 4 cylinders and recheck the clearances on number 2 would be good things to recheck.
To do the compression check, warm up the bike ( we know 2 will be cold ). Pull the wires and label them if you choose so you remember where they go.
Twist the throttle full open and crank it till the needle on the guage has maxed its compression reading...record each cylinders optimal compression and post them .MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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Recheck the clearances on number 2 before doing the compression check..be sure its good for the testing.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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Ok I'm not too big to admit I may be a moron. Kept hearing this puff and then a sputter. So.... I played detective. Hear is what lab analysis shows. I balanced the carbs and went through all this testing without the vacuum line from carb 2 that runs to the tank plugged. In my excitement I completely forgot. Yup it was WIDE OPEN sucking in air and sputtering. Will attempt a rebalance later. But bike is running and I put my finger over the vacuum hose and #2 pipe gets hot.Comment
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Make sure the vents on 1 and 4 arent blocked off..they let the air in the bowls equalise as the floats move up and down.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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Vents are clearComment
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Just thought i would add that little tidgit as to what they function for.
EDIT...Also, youn run the vent tubes down between the swingb arm mand tranny and the ends are about 1 inch BELOW the oil pan..as the air rushes over the ends they get a little extar help equalizing the air. kinda like sucking on a straw draws the air out so the liquid can flow in.Last edited by chuck hahn; 03-21-2013, 10:58 AM.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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Should I install the dyna coils I didn't need bit now have before rebalance?Comment
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Totally your call. If the originals are all good, may just save the other coils for when they ..or one.. goes bad and then youll have spares on the shelf.Last edited by chuck hahn; 03-22-2013, 10:46 PM.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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Is therr really any advantage to the dynasComment
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