Question about 1973 Honda CB 100

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WIREING A 1P52FMH ENGINE TO A HONDA 1973 CT-70 trail bike..

NOTE: THIS BIKE IS A HONDA CT-70 ...MY BIKE WAS NOT IN THE LISTING......EVERYTHING IS HOOKED UP FINE...EXCEPT THE WIREING....ENGINE HAS A 4 PLUG HARNESS WHICH HAS 4 WIRES ATTACHED...ENGINE ALSO HAS ONE LOOSE WIRE ATTACHED TO IT...THE BIKE HAS A 4 PLUG HARNESS WITH ONLY 3 WIRES ATTACHED, AND NEITHER HARNESS WILL ATTACH TO THE OTHER...PLEASE ASSIST ME IN GETTING THIS ENGINE WIRED UP TO MY TRAIL BIKE....THANKS...P.S. MY BIKE HAS A 6 VOLT SYSTEM..I DO NOT KNOW THE VOLTAGE OF THE 1P52FMH ENGINE...IT DOES HAVE AN ELECTRIC STARTER....THANKS...HAROLD.....

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  • Honda Master
  • 41,912 Answers

Hi, Harroknec the answer to this question is way above my pay grade and for this situation, I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
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.
1P52FMH ENGINE wiring diagram Google Search
1973 honda ct70 wiring diagram Google Search
Honda Motorcycle Wiring Diagrams
Honda ST50 Shop Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda ST50 Owner Manual

Posted on May 01, 2017

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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cape cod bob
  • 292 Answers

SOURCE: Honda CB360 STARTER WON'T TURN???

sounds like you have a short inside, unfortunately you will have to strip it down again and re check. please post a follow up on your luck

thanks and good luck

Posted on Mar 31, 2009

Benimur
  • 6966 Answers

SOURCE: 1980 Honda Cm400a No spark

Hi and welcome to FixYa,

Bypassing the kill switch means removing the connection of the black / white wire either at the emergency stop switch (kill/run), ignition switch or preferably at the CDI connector.

Additionally, you can try:

  • start with the side stand up;
  • check/wiggle the 6 wires coming from the stator going to the CDI.

Would appreciate a postback on results / updates.

Good luck and thank you for using FixYa.

Posted on May 23, 2009

co7196
  • 3433 Answers

SOURCE: having trouble wiring the ignition system on a 1980 honda XL 80.

WThat center thing is the armature. It generatates voltage by breaking the magnetic field created by the field coils.. You won't get shocked or even feel the current because you cannot get it spinning fast enough. You have a coil that generates the high volttage spark from the pulsing of the generator output and voltage controlled by the regulator. the field coils are ennergize by turning on the keygetting power from the battery.. n no doubt you did good in your rewire, but the only way to test it is to run it. Yup, reassemble, new oil and start it. Sorry guy.

Posted on Jun 11, 2009

  • 1 Answer

SOURCE: i need wiring schematic

I bought a cbr 600 , but bike came with the wirers not connected. Rectafire, was also not connected? need diagram or help really badly!!!!

Posted on Aug 02, 2009

  • 478 Answers

SOURCE: trying to find tuneup manual on line for 1973

Have you tryed Ebay.com?

Posted on Feb 10, 2010

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Hi, Riley the answer to this question is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
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What is this model of hero honda? What was the approx price of the bike then?


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1 Answer

This has a new harness but no headlights or speep o lights only tail lihgts up this a honda ct 70 1970-1971


Hi.

I do not have the service manual for the CT 70. This small bike has quite a simple wiring, and you should be able to diagnose the problem using a voltmeter or a multimeter to read impedance.

Put lights on and use a test light or a volt meter to check if there are volts at lamp holder contacts. If there is power in there check bulb and lamp holder.
Check if there are volts at the switch. With lights on you must have power on both sides of the switch circuit. Alternatively use an Ohm meter to check if the switch is opening and closing. If the tail lights are on, then the switch is likely fine. Test it the same.
Check front lights wiring. This is probably responsible. Wiring is tested reading Ohms to make sure that there is continuity (circuit closed/zero impedance) between contact at switch and bulb, across connectors, between different parts of wiring, and to test ground connection.

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Bike dont start. Yamaha 175 CT - 1973 make.


Firstlly have you a spark at the plug.if you have no spark then it may be your points or even the timing may be out .

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1973 HONDA 450 CB


Sounds like time for a new battery. A battery is only good for about two years. Then it starts to loose it's charge quickly and then it will not take a charge. Check the water level in each cell. The water should cover the top of the plates in each cell. No water = no charge. Install a new battery and start the engine. Put a volt Ohmmeter on the terminals as the bike revs to around 2500 rpm. The meter should show 14+ volts. If only 12 or less, the charging system should be checked.

Jul 12, 2009 | 1973 Honda CB 100

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