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Hey guys I have a 1979 gs750l. The left side point for 1 and 4 rarely fires. The right side does it's thing. I have confirmed a steady 12 volts to the point on the left and I have no idea what to check next or how the system works. I had never even seen a point before I took the cover off. Any suggestions to help a newbie would be great.
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Have you checked the point gap?
Do you have a manual?1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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I don't have a manual yet. I read how to set the gap on basscliffs site after I posted this.Comment
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But I haven't checked the gap yet. I do know that when the point is closed it grounds out the 12 volts and when it opens the voltage is present. The point looks good. No pitting and its clean. Sorry I know I sound like an idiot.Comment
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Take your point cover off once and turn your bike on. See if its sparking pretty bad.Comment
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I did the point on the right sparks but the one on the left only sparks once in a whileComment
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Points may be fine but the condensors may also be acting up..1 and 4 are run off the same coil so swap the condensors and see if the problem switches to 2 and 3. also clean and check all the connections and be sure theres no way the plug ins can be arching to the frame just under the gas tank.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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Hey guys finally got some time today for the bike. Set the point gap and the static timing. Now 1 and 4 are firing good but #3 is dead. It has compression and the plug is fouled up with fuel. When I set the static timing I was using a test light and the light never flickered or went out so I set the plates back to where they were when I started. If I use an ohm meter what should the readings be? I do have a timing light if someone has a link for setting the timing that way.Comment
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If the light never went out then you haven't set the timing - it is affected by the point gap.
Most likely the gap is incorrect. The timing is quite sensitive to this.
Check and reset the gap and double check once the screw is fully tightened before adjusting the static timing with your light. Do this to left points first then do gap and timing on right.
And as suggested, if you're seeing bright spark at the points when the bike is running then the condensors are suspect.1979 GS750EComment
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Thank you everyone. I redid the gaps and timing. Still had weak spark. But no spark flying around the points. Pulled the tank and tested the coils 11 volts at one 10.2 at the other. Did the coil relay mod and lo and behold it lives! now for an oil change and new plugs to get rid of all the extra fuel that was dumping into the motor. Thanks again everyone!Comment
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