Question about Yamaha YZ 125 Motorcycles
Every time i try to start my bike it wont start i have read the pressure with a guage and it wouldnt read please help
Posted by Anonymous on
Hi, Anonymous and the usual suspects are:
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Discharged battery, needs to be 12.5 volts or better and be able to pass a load test if necessary, 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. Bank angle sensor tripped and ignition/light key switch not cycled to the "OFF" position and then back to the "ON" position.
5. Faulty ignition switch.
6. Faulty starter button.
7. Faulty kickstand or clutch pull in switch/sensor.
8. Security alarm needs a reset.
9. Starter control circuit, relay, or solenoid faulty.
10. Main fuse or circuit breaker may be blown or faulty.
11. Electric starter shaft pinion gear is not engaging or over-running starter clutch slipping.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
yz 125 wont start
Dirt Rider Magazine
Yamaha YZ125N1 Service Manual
OEM parts for Yamaha
Posted on Jul 13, 2016
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Posted on Jan 02, 2017
you have a problem with the starter not turning the engine. so we probily not sending a signal to the starter.
you realy confused me when you started talking about gas and choke?
if the engine doesnt turn over none of this even matters.
these new bikes have many safety features .
you have a sensor for netural and you have a sensor for your kickstand and a sensor for your clutch
and all of these have to be workinf right for your engine to turn over.
so with your kickstand up and the bike in netural and the clutch lever pulled in
it should turn over and start.
when it doesnt you need to check your wiring to the switches one might have come loose.
or could be a bad switch.
let us know what you find
Posted on Nov 23, 2008
SOURCE: i cant start my motorcycle
Check the carb for old petrol, drain off by unscrewing the brass bolt at the bottom of the carb, and allow new petrol to flow through on the starter. Petrol 'goes off' in time!
Posted on Dec 15, 2008
SOURCE: bike cranks and wont start
Hi .... Sounds like regulator/rectifier is defective. Fully charge battery and try starting again, place multi-meter across battery and it should show 12.8-14 volts. If it doesn't replace reg/rec unit.
Posted on Jan 04, 2009
If u havn't checked the battery with an ohm meter, do so. If the meter reads 12.50 or higher start looking at your starter. The solinoid would click and a bad starter would nothing. You could try tapping on the starter with a small hammer while pressing the start button. If it starts or at least turns over, u need a starter.
Posted on Mar 22, 2009
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