Bike just won't start...

[CutterBill]

Here, I'll make it easy for you....
https://www.yamahapubs.com/results.php?cat-id=3&year=1992&family=FJ1200&lang=en

The manual covers all years.
Bill

[Pat Conlon]

Who cleaned the carbs?

So, the pick up coils checked out ok and you have new coils....are you now getting spark at all 4 cylinders?

[Ryankhitt]

I haven't checked the to see if there is spark on all 4 yet. Had a busy day. I cleaned the carbs. I opened the gates and cleaned the pilot and main jets. Looks like I have to just take her in and have someone who knows more than me check it out. Just don't really have the money because I can't get to a job. This bike is my only transportation. I have a friend taking me tomorrow and the next day... That may be enough to take it in.

[ribbert]

I just turned my key to the ON position and got a backfire as soon as I turned the key.

....and there, at last, is the telling bit of info!

Ryan.... Hooligan, Cutter Bill and myself (twice) have all told you one way or another that the scatter gun approach is wasting time and money. Only three  things have happened to your bike since it was running perfectly, you dropped it and broke a few things, you replaced parts and you parked it up for three months.
In that time your coils didn't go bad, all four plug caps didn't corrode, the fuel didn't go off, if a jump from a car won't start it your battery isn't the problem, the starter didn't suddenly die from being on it's side briefly, it doesn't need premium fuel to run and FFS, the oil has nothing to with it.

Yes, there can be odds defying longshots and coincidences, but you start chasing those after you've covered the obvious, you damaged some parts and replaced them then your problems started.

My next step would be to check the bolt that mounts the rotor isn't bent. The bike obviously has spark and it has fuel (or it wouldn't backfire), just got to get the order right. My money remains on the parts you replaced (or didn't replace) being the problem.

Ryan, I know you're desperate to have it running and short on cash but you've asked for advice, take it, otherwise it will dry up. Lots of knowledgeable folks here only too happy to help.

The backfire when turning on the ignition is the key (no pun intended) and should narrow the search. The rotor sends a signal for the ignition to spark on an already energised system, what you bike appears to be doing is sending that signal as soon as the system is energised (ignition turned on)

If all this is a bit beyond you and you need the bike for work, maybe the best option is take it to an auto electrician and make some arrangement for payment. A guy that knows what he's doing, with the bike in front of him, would home in on this in no time flat, in the meantime, check that bolt.

IMO

Noel

[Pat Conlon]

I cleaned the carbs.

[Mr. Grumpy]

You know my wife tells me I do this so much she has forgotten what colour my eyes are!LOL

I cleaned the carbs.

[racerrad8]

You can't fuck up installing a pick-up base and rotor... Its fixed...There is only one way it can be installed.

As long as you have the correct rotor for the correct pick-up coil system or vica-versa.

I just turned my key to the ON position and got a backfire as soon as I turned the key.

That tells you the coil is being charged and discharging when the key is turned on.

My only advice, is post up some photos of the pick-up coil and rotor as you have it now. As mentioned several times, that was the damage and initial trouble. The BS from the dealer about a burned coil is poor information, so get that out of your head.

If you have the meter, you have the ability to check the pick-up coils and ignition coils, just follow the manual Bill sent you.

No, you do not have to change/drain the oil when you replace the starter.

Randy - RPM

[FJ_Hooligan]

Next you should try rotating the brake pads.

[Ryankhitt]

Its in the shop. Its a local rider that only works on 1990 and older. He said he will do a diagnostics on electrical and if he can't find anything then clean the carbs... Ill update as soon as I have info. Thank you for all the help an advise. Fell like an ass for not knowing my bike better. Only in my third year of riding. The bolt was fine, the parts I bought were new and I cross referenced them. I also checked them with the meter and contacted the seller.

[ribbert]

He said he will do a diagnostics on electrical and if he can't find anything then clean the carbs...

Ryan, I hope you told him about the backfire as soon as the ignition is turned on, that is the key bit of information and should lead him straight to the problem (and save you a lot of money)

Noel

[Old Rider]

Hello im 99,9% sure its someting wrong with your pick up coil.I would start with checking that the rotor is not bent/lose or if its dirt or corrosion at the contactpoints on the base. then you shuold
measure the distance at both sides at the contact points.If that seems okay i would inspect the wiringplug from the pickupcoil and giwe it some wd 40 to clean and make good contact. God luck!
And also check your sidestand switch (and clutch lever switch) mayby something happened to it wile the bike went down and making it make bad connection.

[Mike 86 in San Dimas]

 
Pat,  I thought  I was gonna die when you posted the start trek scene.

[GS Jockey]

A couple of months late in reading this thread... any news on how it worked out?