Question about 1985 Yamaha XJ 700 X Maxim

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Convert a 1977 xs750 points to electronic ignition

I've just about made the conversion except on the cdi box I the terminal layout of the 6 terminal part of the cdi unit. i need to know which terminals go to coil 1,2, and 3 ETC

Thanks
Mark

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  • Josh D.
    Josh D. Jul 27, 2015

    where did you find your electronic ignition?

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You will find everything you need to know about this here:
http://www.yamaha-triples.org/forums/thread-view.asp?tid=5399&posts=18&highlight=electronic%20ignition&highlightmode=1#M40996
I am probably going to do the same to my 77 xs750 this weekend. Dusty6467

Posted on Jul 14, 2009

  • dustin6467 Oct 09, 2009

    Go to www.yamaha-triples.org and do a forum search for points conversion. There is more than you need to know; on all elements of the bike.

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Cleaned distrubiter on 1977 crystler 105 hp now i have spark some coils are firing har and some are very week could it be that i havent gapped the points accuretly or my cdi box isent working?


What ignition do you have? Motorola, Magnapower II, ??
Look if your ditributor shaft hasn't too much side play.
If some plugs have good sparks and other no sparks, check your plugs ( get new ones, they cost not a lot... ) Check plug leads for cracks in their insulation. RE)check the conserned distributor cap points...

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Can you change a 1991 Kawasaki KH 125 from 6v to 12v? The rotor is the same part number so would it just be the four pin regulator rectifier to change. Will the points and condenser will be the same


Any electronics would have to be changed . Not familiar with that unit but if it has a cdi box that would change as well as any lights and the charging system. ..not just the rectifier.

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Hi, my zzr1100 will turn over but I have no spark, I have replaced both coils with new ones, replaced - fuse box, CDI,pickup coil and put new plugs in. Can you tell me what's up..... Thanks Anthony.


Hi, Anthony if you have a CKP sensor it needs compression to send the correct signal to the ICM/ECM, make sure both spark plugs are in heads and use a grounded third plug to check for spark or hold spark plug cable close to spark plug in the head. If still not getting spark the usual suspects are:
1. Fouled spark plugs.
2. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Loose connection at ignition coil or plug between ignition sensor and module.
4. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
5. Faulty ignition coil or ignition / electronic module
6. Failed CKP, CMP, or BAS sensor.
7. Faulty ignition switch.
8. Security alarm failing to disarm needs reset
For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have a nice day.
http://zzrbikes.com/threads/59960-ZZR-1100-CDI-problem
zzr 1100 Workshop Visordown
http://motorhead.jactup.com/ZX-11/tech/ZX11_Service_93_01-converted.pdf

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1 Answer

Why does my 1979 yamaha xs 750 special have weak fire?


Hi, Karin and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and CDI box.
5. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose, check for spark leakage in the dark.
6. Faulty ignition coil, pick up coil, trigger coil or CDI box testing needs to be checked with an ohmmeter at 70 degrees Fahrenheit
7. Faulty safety switches clutch, kickstand, neutral, off/on etc.
8. Faulty ignition switch.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
http://www.xs11.com/forum/showthread.php?t=4451
Viewing thread 1979 Yamaha XS750 Special will not start
http://www.yamahatriples.com/files/5613/2786/4749/Yamaha_XS750_Service_Manual.pdf
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1 Answer

I have a 1977 xs 750 yamaha 3 cyl. was having trouble starting it . so i change the plugs and points and cond. now some times it will starts and some times it wont , but when it does run it back fires and...


Hi, Harry and the usual suspects are:
1. Spark plugs in bad condition or have an improper gap or are partially fouled.
2. Spark plug cables in bad condition.
3. Battery damaged or nearly discharged, should have 12.5 volts.
4. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
5. Throttle controls not adjusted correctly.
6. Water or dirt in the fuel system.
7. Water or dirt in the carburetor.
8. Faulty fuel pump.
9. Intake air leak.
10. Fuel tank vent hose and vapor valve plugged, or fuel line closed off, restricting fuel flow.
11. Enricher valve inoperative.
12. Engine lubricant to heavy (winter operation).
13. Ignition is not functioning properly (possible sensor failure).
14. Faulty ignition coil.
15. Valves sticking.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
http://pnwriders.com/threads/xs750-engine-wont-start.49752
1977 Yamaha XS750 Electrical Problems Tech Corner Blog Motorcycle Classics
Yamaha XS750 2D Supplemental Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xs-owners-manuals

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1 Answer

1977 yamaha 650 everything electrical is working but the engine won't crank.


Hi, Dave00373 and the usual suspects are:
1. Fouled spark plugs.
2. Discharged battery, needs to be 12.5 volts or better and be able to pass a "LOAD" test, your battery may show 12.5 volts but has little or zero amps and must be replaced.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting, leaking, spark plug cable connections loose check for spark leakage in the dark.
6. Faulty ignition coil or CDI or electronic control module.
7. Faulty CKP, CMP, or BAS sensor.
8. Faulty ignition switch.
9. Tilt sensor needs a reset.
10. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
79 xs650 Special No Spark But 12v help
http://www.650central.com/if_your_xs650_with_standard_yama.htm Yamaha XS650SE Shop Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xs-owners-manuals

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1 Answer

We have a 93 fxrs with points . we have burnt up 3 coils in the last 200 miles no coveron the coil, new solid wires any one have an idea need help


That's because you have to use a different coil with points type ignition systems rather than electronic. The coil for an electronic ignition system has a primary resistance of 2-3 Ohms. For a points type ignition system, you must use a coil with a primary resistance of 5-6 Ohms. I assume you have a reason for converting to points ignition. I'd rather have gone to a Crane HI-4 system unless the price was prohibitive then I'd went with a Crane HI-1 system for about the same money as the points conversion setup. Don't forget to service the mechanical advance unit about once a year. You need to take it out and lubricate the bearings on the flyweights.

Good Luck
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1 Answer

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Your 3 pin is most likely a generic battery ignition car switch which has a power/ignition/starter. set of terminals.

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