Question about 2000 Yamaha DT 125 R

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I get around 1 volt going in to the coil but no spark do i need more than one volt going in what should i check and how 1993 DT 175

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What state are your wirings from battery to coil

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Is your bike a one volt bike or a 12 Volt DC biker?
1. What state is your battery
2. What state are your wirings from battery to coil
3. What states are your wirings in overall?
4. How are the wiring connections, are they all tightly connected?
5. Turn on your lights and see if they comes on bright or dim?
6. Press your horn does it sound solid or last breath?
7.If you can unplug your spark plug wire, put the wire about 5 cm from the spark plug tail and see if any sparks jumps, good idea to do it in a dimmed area.
This are just a minor checking indicators as many causes can be the source cause of your problem.

Posted on Sep 02, 2010

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1 Answer

Dt 175 wont rev to 7000rpm


Hi, Anonymous and the usual suspects are:
1. Severely drained or faulty battery.
2. Faulty regulator/rectifier or high output coil.
3. Faulty power valve, solenoid or installation.
4. Clogged air filter or exhaust.
5. Cracked or incorrect float level.
6. Float needle is not seating.
7. Faulty reed valve.
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.
dt175 won rev above 7k
https://yamahaclub.com/forums/topic/33058-dt-175-mx-1979-will-not-rev-out
Yamaha DT175B 1974 Manuals
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-dt

Oct 22, 2012 | Yamaha Motorcycles

1 Answer

1971 DT 250 No spark


Hi, Anonymous 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 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 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.
DT250 no spark
How to diagnose no spark situation on motorcycle
DOWNLOAD NOW Yamaha DT250 DT360 DT 250 360 Service Repair Workshop Manual...
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-dt

Sep 22, 2012 | Yamaha Motorcycles

2 Answers

1977 dt 175 e and i can't get it to fire i put a new coil and still no spark


My old 73 175 had points, I don't know if yours does. There is also the stator/ magneto. Try disconnecting the kill switch or unplug the key cylinder. There is a more detailed check in the manual. I can't find my old 175 manual but ttr125 says 1) check plug for spark- clean or replace. 2) check entire ignition system for connection. 3) check ignition stop switch. 4) check coil. a- primary coil, b- secondary coil. 5)check cdi coil. a-pickup coil. b- charging coil. Since you have replaced the coil I will only give specs for the cdi check. The picture shows a plug under the tank disconnected. It has four wires brn grn red and wht. To check pick up coil resistance set ohm meter to x 100. attach the plus lead to red and neg. lead to white. It seems to have a short wire in each jaw of the alligator clips of ohmmeter that is pushed into the disconnected plug that contacts appropriate wire color. Reading should be 248 to 372 ohm at 20 degrees C (68 degrees F). Charge coil test places the plus lead of ohmmeter to the brown wire and neg. lead to the green wire of the open plug. Meter at x 100. Reading should be 688 to 1032 ohm at 20degrees C. Of course while doing step 2 check for good grounds and tight connection at plug cap and use a new plug. Good luck.

Apr 06, 2011 | Yamaha DT 360 Motorcycles

1 Answer

I have a 1972 yamaha 360. it had ran 1 min when i first got it, then died. fiddled around a bit and got it to run 30 seconds then died again. checked for spark none existent. clean points, ground...


Hi, Greener_dude nice novella and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
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 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.
DT360 NO SPARKLETS Vintage Enduro Discussions
How to fix No Spark Problem on Motorcycles and Dirt Bikes
DOWNLOAD NOW Yamaha DT250 DT360 DT 250 360 Service Repair Workshop Manual... $15
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-dt

Apr 06, 2011 | 1972 Yamaha DT 360

1 Answer

1981 Yamaha DT125 no spark


Hi, Michael and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
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 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.
1974 dt 125 no spark help Vintage Enduro Discussions
How to fix No Spark Problem on Motorcycles and Dirt Bikes
Yamaha DT100A 1974 Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-dt

Oct 28, 2010 | 2006 Yamaha DT 125 X

1 Answer

Yamaha DT 175 motor bike 1993 model


check the gear plates and concult to a mechanics

Jul 04, 2010 | 2006 Yamaha DT 125 X

2 Answers

Yamaha dt 175 1980.no spark from the coil.I


i have the same problem on my dt but i just cant find out whats wrong

Dec 03, 2009 | Watches

1 Answer

1993 jeep cherokee. Can't get spark out of coil.


Check the Crankshaft Position sensor. Usually it will reveal itself through the check engine codes. If this is faulty, the coil will not get the signal it needs to fire.

Jun 27, 2009 | 1994 Jeep Grand Cherokee

1 Answer

Yamaha dt 175, voltage question. When idling, my DT measures 7 volts across the battery terminals. When revved it jumps up to over 13 volts. This is a six volt bike. I know the battery is completely shot....


You need new regulator and new battery.The battery works as a filter as well.If it is in bad condition it does not filter anything and in high rpm the current is very high.

Jun 08, 2009 | 2006 Yamaha DT 125 X

1 Answer

RT 175 Yamaha 1986 NO SPARK


Hi, James and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
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 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.
How to fix No Spark Problem on Motorcycles and Dirt Bikes
How to diagnose no spark situation on motorcycle
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-rt-owners-manuals
Yamaha DT Wikipedia

May 16, 2009 | Yamaha Motorcycles

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