Question about 1986 Yamaha FZ 600

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Bike been standing nno spark to new plugs - 1986 Yamaha FZ 600

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CHECK FUSE FIRST, THEN COIL ,THEN RECTIFIER.

Posted on Mar 25, 2011

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My crf 100 wont start it seems like its not sparking. i got a new spark plug and i dont see no spark what do i do i wanna ride


Be sure that the handlebar and side stand kill switches are off. Have a friend kick the bike over ( in neutral ) while you ground the bottom of the plug against the cylinder. Without being grounded, the plug can't spark. Don't twist the throttle more than once when starting. You can easily flood the engine.

Mar 17, 2011 | 2004 Honda CRF 100 F

1 Answer

Runs without plugwires on shuts off when you put it in gear


Your cycle runs when you pull off one spark plug wire per cylinder. There are two spark plugs per cylinder and you did not remove both . Therefore you still have one spark plug on each cylinder firing to run the machine. Your motorcycle is also equipped with a side stand safety switch. Your bike will run on the side stand . But, if you put the bike in gear with the side stand down it is designed to turn off the motor. This is so you do not drive away with the stand down and loose control of the motorcycle on your first left hand turn. Get in the habit of putting your side stand up before putting the bike in gear and your problem is solved. Read your owners manual.

Oct 16, 2010 | 2003 Honda VT 750 C2 Shadow

1 Answer

I fitted a new sensor and my bike does not start at all after fitting. Before I fitted the new sensor, I took it to Truimph and they had it on the dianostics and they told me to fit a new sensor.It also...


Thanks for your feedback. When you say "It also smells madly fuel when I start the bike." does the bike start?
I'm going to assume not.
I don't know much about Fuel Injection but there is three things motors need to run - compression, fuel and spark. It sounds like you have compression and fuel, so we need to check for spark.
Chances are the plugs are simply fouled with gas. You can simply buy new plugs (esp if they're old) or check the existing ones for spark.
CHECK FOR SPARK The best way is to remove all of the sparkplugs, re-connect them to their wires, rest the threads against a good ground. Turn the motor over and look for a good fat white spark.
If no spark, make sure all 'safety' switches are in a start position (side stand up, neutral, kill switch on etc.)
Good lcuk & let us know!
Be sure to put a dab of neversieze on the sparkplug threads when re-installing.

Dec 11, 2009 | Triumph Daytona 955i Motorcycles

1 Answer

Bike starts when cold then stops after a few mins and the side stand light comes on and the spark is orange there is no side stand switch on the bike.


one of your coils is faulty to have an orange spark.spark should be a crisp blue.or just a bad plug.hope that helps

Nov 28, 2009 | 1983 Suzuki GSX 550 ES

1 Answer

Bike only fires once


Okay, let's have a look at it. Say Ahaaa.
The probable cause of the problem is not the spark. Get a fresh set of Stock NGK spark plugs, ground the plus to the engine, and check each cylinder for spark as the starter button is pressed for 3 seconds or so. I will wager that the spark is present.

The likely problem is the fresh gas was put into a very rusty gas tank. Bits of rust now inhabit your carb and are having fun plugging up the carb. Look at the gas valve. With a little luck there is a small bowl behind the valve. Remove it and tell me what you see in the bowl.

Apr 11, 2009 | 1982 Yamaha XS 400 SE

1 Answer

No spark on my bike haven't road for a year now help please


Check the kill switches including the side stand switch, with an Ohmmeter. Good battery? Good fuses" All wires clean and with a solid connection? Check the loom. Any abraded wires? Check the operation of the ignition switch with a volt ohmmeter. Is the bike in neutral and the neutral light is lit up? Get new stock spark plugs.

If still no spark, get CDI system and coils checked at the dealers shop.

Please rate this solution. Thanks burbee904!

Apr 05, 2009 | 2000 Yamaha YZF-R6

1 Answer

No spark on Piaggio zip


Is the kill switch on? Check the side stand kill switch if you have one. They sometimes go bad. Disconnect the handlebar kill switch. Does it start now? Also check the key switch. A switch can go bad as well.

Please rate this solution. Thanks 01richardobr!

Apr 02, 2009 | Daelim NS 125 III Motorcycles

1 Answer

Bke wont start


Hi there, try this sometimes the stand switch can make the bike not work if has got rusted at the back.and check or replace the coil., then check if you are getting a spark from the plug by putting the spark plug on top of the head. The next thing is if the bike turns over but not fire up, you need to strip down carb and clean jets, also check petrol value under the tank If you have a book it will go through this step by step. good luck.

Feb 21, 2009 | 2005 Honda CBR 125 R

1 Answer

Fuel starvation


There are three things all at the same time the bike needs to run:
1.Fuel
2.Compression
3.Spark

If you use starting fluid into the intake, and it continues the same, then fuel is not the problem

Use a compression tester to see if the pistons come to spec

Check the spark plugs, maybe try changing them with hotter plugs or just new ones. Also check the coils and stator for proper ohms.

You might see a little compression loss by a cam being out of timing, so you might check to see that your cams are timed right.

Jan 11, 2009 | 1995 BMW R 100 R

1 Answer

Starting problem


new spark plugs also tested that coil is sparking side stand is not down and it does have fuel. Can anyone help me with Cagiva River 500 starting prob?separate the multi plug that the sidestand switch connect to and use a small piece of wire to bridge one side to the other......if the bike spins over then at least that's one problem area fathomed out. If the bike fails to spin check the main fuse that sits in the starter solenoid, this can be found by tracing the pos wire from the battery back to the next place it bolts too, this is the starter relay. On this is usually about a 30amp fuse, check it hasn't blown as its the first to go pop usually.,,,

Nov 10, 2008 | 2000 Cagiva River 500

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