No fire!

Hello my name is Bryan and I have a 85 xj 700 Yamaha maximum. It just had carbs cleaned fully and u was riding and all the sudden it cuts out on me.... Now... I was messing with the handle which the kill switch is on and I noticed the wire was pintched... Idk if that the problem or it's something else but i am getting no spark to my plugs. I'm just getting no fire!!
If someone could help me get my bike back on the road it'd be so awesome!!! I haven't ridden in months almost a year!

 

So are you saying that when you press the starter button, it turns over but no spark? If the kill switch is 'active' (whether it's in either off position, or if the connection is broken because of the pinched wire) then the bike won't turn over at all when you press the starter button.

How are you diagnosing that there is no spark? Have you pulled the plug and grounded the threads? Or using an inductive tester?

 

ohm out the primary and secondarys on ignition coils ohm out the spark plug caps, what do your spark plugs look like?
is your battery fully charged? do a voltage drop test on battery when cranking it over see what the voltage drops to? below 10 volts bike wont fire but will turn over

 

If you have a lead acid battery ensure the electo lyte level is to proper level and if low only service with distilled water. If voltage is to low might crank over but TCI circuit won't open and hence no spark . Check voltage before cranking should be 12v check cranking voltage at battery 11.5 to 11v if it goes down below 10v it won't spark .

 

Welcome to the board, so much information on here you will be reading for days.

When the bike is cool will it start again? I know some of coils had faults (opens) when they got hot and when they cooled off, they would start. Try to work one issue at a time until you get a good test as trying from multiple trouble areas can be confusing. Best of luck and keep us posted.

 

Um
I'll have to get more info for you guys and picture. I'll get back within the next day. With said stuff and maybe you can help more .

But I took the spark plugs out and connected it to the wire and tried to see if there was any spark like a friend told me and no spark . And I stuck a screwdriver in the spark plugs wire and held it near the plug and no spark either. My battery is fully charged. I'll be back on with more info so I'm not asking such broad questions.

 

If you want to see if you have spark, have to make sure the spark plug body is grounded somehow. So you can rest the threads on anything conductive (not that gas tank though, haha). For you to see a spark there has to be a path from the plug back to ground. Usually this is the head, which the spark plug is threaded into.