Question about 1991 Yamaha FZR 600

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If the cdi is fried will the bike turn over at all? it's got a new fuel pump and coils and will turn over but won't grab and run.

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Capacitor Discharge Ignition modules control the spark timing to the engine based on the inputs received from various sensors. There will be no spark if the CDI is bad

Posted on Mar 12, 2009

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Posted on Jan 02, 2017

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Hi i have a 4stroke 125cc pit bike it wont start tried bump start sorted turned over but when i reved it didnt respond then died any ideas


Tryd go to auto shop and check the carburator of your motor and clean your air filter adjust air setting in carburator and put a new fuel pump check fuel setting in carburator

Jan 18, 2014 | Motorcycles

1 Answer

I got Yamaha yfz r1 2002 when I push the starting button the starter runs but there is no ignition, what to do plz


Hi, Flouss_haz_k and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Fuel line to carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery, you need 12.5 volts or better and be able to pass a load test if necessary.
11. 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.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. Tip over sensor needs a reset.
18. Check for engine trouble codes.
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.
Bike won start
Bike won start
https://r1videos.files.wordpress.com/2011/04/2002-2003-yamaha-r1-service-manual.pdf
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Mar 16, 2013 | 2002 Yamaha YZF-R1

1 Answer

I have a 125 grizzly wont fire brand new cdi. Took off batery while running. Now no fire from coil


The battery on most new motorcycles is required as a smoothing device and is always the first thing to feed the bike electrics. The alternator is mainly used to charge the battery. There is a very good chance that you have fried the CDI again.

Feb 18, 2013 | Motorcycles

1 Answer

2007 yamaha stratoliner won't start


Hi, William and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Fuel line to the carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery you need 12.5 volts or better and be able to pass a load test if necessary.
11. 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.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. A stuck bent or burnt valve.
18. Tip over sensor needs a reset.
19. Check for engine trouble codes.
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.
Bike won start Help the newb
What to do When Your Motorcycle Won Start
Yamaha XV19SW Service Manual
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Jan 10, 2013 | 2011 Yamaha Stratoliner

1 Answer

82 Yamaha xs400 maxim. I keep burning up CDI. New CDI and bike runs great. If it goes on a long run (over 45 min), the idle speeds up and the next day the CDI is dead. I put and old one back that runs for...


Hi,
The CDi usually breaks down when it gets an over voltage from the voltage regulator.
Try to replace the voltage regulator so that the CDi won't overheat.
Check also the ignition coil, it might have a short circuit it the connection terminal or the polarity is wrongly placed.
Thanks for using FixYa!

Jul 11, 2011 | 1982 Yamaha XS 400

2 Answers

Zxr750h1 starts and runs for 30minutes then stops try too start it again but won' t fire up. wait for engine to cool ie 2hours then it starts again, ive changed the cdi, plugs ,clean petrol & checked...


in addition to the cdi you should have a set of pickup coils that help with ignition timing, they are on the right side of the engine behind the side plate, they should ohm at 5k or so. If you check them and one or both shows infinite resistance that may be the problem.

Mar 21, 2011 | 1990 kawasaki ZXR 750

1 Answer

Blowing ignitor [cdi]


Hi, Gemmaj_p123 what is your ignition fuse doing, if your blowing CDI's then I would look for a short coming from the CDI on it's way to the coils, cracked or worn or chafed wiring for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Kawasaki, despair not, for a mere zero $0 you can download another one.
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.
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ignition fuse keeps blowing
Kawasaki Ninja ZX 6R Service Manual
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Apr 11, 2017 | 1999 kawasaki ZX-6R Ninja

1 Answer

1982 Suzuki GS850 GL will only run with the starter button held


Obviously the CDI is picking up power from the starter button. Check the ignition key switch for proper operation. Chances are that whatever fried the loom also fried part of the switch. Alternate to that, trace the wire powering the CDI system, disconnect it at the source (starter button connection), then find a power source that is live only when the key is turned on and then hook the CDI wire up there.

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Aug 18, 2009 | 1982 Suzuki GS 650 GT

1 Answer

The engine turns over and everything but it wont start. no spark


I assume you got this fixed; sounds like it wasn't getting gas to the carbs. Some people don't realize the 99-02 SV650 has a vacuum-actuated fuel pump, and sometimes it can get stuck. Mine has had this problem, and it took me a while to determine it was the problem. I would guess it only happens after the bike has been sitting a while.

Best way to check it is to lift the tank (it's bolted to the frame on the right side of the engine just under the tank). Unplug the line toward the front of the motorcycle from the fuel pump, and connect some spare fuel hose to it running to a can next to the bike (don't want to get gas everywhere!). With everything else still connected, crank the bike for a short period to see if any fuel comes out (shouldn't take long). If not, then move backward and ensure fuel will flow from the vacuum-petcock when the bike is cranked. If that does work, your fuel pump needs some work. I was able to take mine apart and unstick it.

Mar 21, 2009 | 2001 Suzuki SV 650

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