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General Category => Yamaha FJ1100 / FJ1200 Running Problems => Topic started by: jagcofj on June 27, 2016, 02:01:23 PM

Title: 1989 fj1200 idle problem
Post by: jagcofj on June 27, 2016, 02:01:23 PM
Hi to all fj riders, When go start the bike, I pull the choke up hit the start switch bike starts right up. When it warms up I push the choke in idle ok if I move throttle a little  - when I use throttle and give it some gas seems to work ok. - But when I turn throttle clock wise / up the wrong way motor rpms drops and cut off. Is there a stop set screw some where for this.  "O" to I'm getting a little pop back fire like at 4500 to 6000 rpms but then clears up.

I have not pull the gas tank yet.  Is there a site online I can down load a manual for the bike.   I bought the bike off ebay about 2 weeks ago. Man the bike was not in shape like the guy's ebay add said.
Front fender tabs broke off had to make some new 1's came out nice.  Lower fairing had cracks and 1 side was almost broke off. 


Title: Re: 1989 fj1200 idle problem
Post by: aviationfred on June 27, 2016, 03:12:07 PM
My suggestion is going to be based on the belief that your carbs are clean and are in over all good shape.

Once warmed up, your idle needs to be set at 1100 +/-50 RPM's. The adjustment knob is on the underside of the carbs, between the #2 and #3 carb.

Before the idle adjustment is made, you may want to go ahead and do a good deep clean and rebuild of the carbs. www.rpmracingca.com (http://www.rpmracingca.com) will have the rebuild kits. A good price to pay to have trouble free carbs for years to come.

Fred
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 29, 2016, 07:11:18 AM
Thanks for the reply and info I will try today to play around with it.  As can see in the pics I had to repair the front fender mount tabs, The lower cowling repaired and painted. The rear turn lights on the bike are these after market.
I bought a rack but can't mounted because of the lights stick out on the side.
Title: Re: 1989 fj1200 idle problem
Post by: markmartin on June 29, 2016, 11:08:54 AM
Quote from: jagcofj on June 29, 2016, 07:11:18 AM
The rear turn lights on the bike are these after market.
I bought a rack but can't mounted because of the lights stick out on the side.

Can you post another picture of your rear tail lights? It looks as though they are built into the rear spoiler from the angle of the photo....? this would not be stock.
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 29, 2016, 12:44:35 PM
Rear turn lights picture. I look at a few pictures of other fj1200 don't see these.... "O" to they was kinda yellow looking re-painted them.

Title: Re: 1989 fj1200 idle problem
Post by: markmartin on June 29, 2016, 01:15:57 PM
Yeah, those are nothing I've ever seen on an FJ, but they look good. The stock turn signals can be removed when mounting rear bags etc., but those are going to create a challenge.
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 29, 2016, 01:38:54 PM
Man the gas looks orange color, "OK"  gas tank off 2 air cleaner boots off some.  The carb idle adjustment on the bottom can swing back and forth but will not drop down. - it do attach to the carb I'm I right on this. Lift to right cylinders are 1# 2# 3# 4#  the 2# cylinder is the 1 i set all the other carbs by is this right.  

Do I really have to pull the carbs to find out what's going on the idle screw.







 
Title: Re: 1989 fj1200 idle problem
Post by: Pat Conlon on June 29, 2016, 02:10:29 PM
WTF did you just say?
Title: Re: 1989 fj1200 idle problem
Post by: jscgdunn on June 29, 2016, 02:21:49 PM
The knob you show in your second picture is the idle adjustment.  you should be able to reach in with a leather glove on and turn it.  if not you can use a long screwdriver to push it in the desired direction.  Tightening increases idle speed.
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 29, 2016, 05:32:42 PM
I got bold and pull the carbs. Is there easy way of re-installing the carbs and air box.  Screws was missing also don't some gas over flow tubes mount to the carbs somewhere. Do any hoses go to the light color inlet.
Title: Re: 1989 fj1200 idle problem
Post by: rktmanfj on June 29, 2016, 06:50:09 PM
Quote from: jagcofj on June 29, 2016, 12:44:35 PM
Rear turn lights picture. I look at a few pictures of other fj1200 don't see these.... "O" to they was kinda yellow looking re-painted them.

Those turn signals were featured on a Motorcyclist magazine project bike in an article entitled Red Hot Resurrection in May 1990.

I don't have a copy at hand (it's around here somewhere), but the maker is listed at the end of the piece.

Title: Re: 1989 fj1200 idle problem
Post by: Flynt on June 29, 2016, 10:56:47 PM
I like your Ultra Man doll...

Frank
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 30, 2016, 06:11:51 AM
Quote from: not a lib on June 29, 2016, 06:50:09 PM
Quote from: jagcofj on June 29, 2016, 12:44:35 PM
Rear turn lights picture. I look at a few pictures of other fj1200 don't see these.... "O" to they was kinda yellow looking re-painted them.

Those turn signals were featured on a Motorcyclist magazine project bike in an article entitled Red Hot Resurrection in May 1990.

I don't have a copy at hand (it's around here somewhere), but the maker is listed at the end of the piece.



Thanks for the info on the tail lights. I found a plastic bag where the tool bag is. And found this info.

Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 30, 2016, 06:16:45 AM
Can any tell me what carb hoses is needed and where hook up to. The air box has a hose hook to it. Where do this run to - or connect to.


Title: Re: 1989 fj1200 idle problem
Post by: FJmonkey on June 30, 2016, 07:22:59 AM
The two empty fittings I believe are bowl vents. The hoses just hang down with the over flow tubes and do not connect to anything. The 90 degree hose barb on the air box goes to a vertical hose barb on top of the crank case. it looks like the hose is shown in the upper image just behind, below and to the right of the carbs. The heat shield has hole for this hose to pass through.
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 30, 2016, 11:03:42 AM
Quote from: FJmonkey on June 30, 2016, 07:22:59 AM
The two empty fittings I believe are bowl vents. The hoses just hang down with the over flow tubes and do not connect to anything. The 90 degree hose barb on the air box goes to a vertical hose barb on top of the crank case. it looks like the hose is shown in the upper image just behind, below and to the right of the carbs. The heat shield has hole for this hose to pass through.

Thanks fjmonkey,  It looks to me the seller of the bike,  just through the carbs on the bike to sale it. freaken bolts missing on the carbs. idle adjustment  not even screw to the carbs.


Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 30, 2016, 01:46:28 PM
I'm up and running, thanks to the guy's that help me.   


Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on June 30, 2016, 09:49:18 PM
Can any 1 tell me what are these wires for. There on the right side of the bike brown and black wires.


Title: Re: 1989 fj1200 idle problem
Post by: FJmonkey on June 30, 2016, 09:53:33 PM
Flux Capacitor upgrade???

That might be for an emissions feature. If so then it will have power with the bike on and no power when off. I am using mine to power my heated grips. That way I won't kill my battery if I fail to turn them off.
Title: Re: 1989 fj1200 idle problem
Post by: Tuneforkfreak on June 30, 2016, 10:01:58 PM
Quote from: jagcofj on June 30, 2016, 11:03:42 AM
Quote from: FJmonkey on June 30, 2016, 07:22:59 AM
The two empty fittings I believe are bowl vents. The hoses just hang down with the over flow tubes and do not connect to anything. The 90 degree hose barb on the air box goes to a vertical hose barb on top of the crank case. it looks like the hose is shown in the upper image just behind, below and to the right of the carbs. The heat shield has hole for this hose to pass through.

Thanks fjmonkey,  It looks to me the seller of the bike,  just through the carbs on the bike to sale it. freaken bolts missing on the carbs. idle adjustment  not even screw to the carbs.



I learned that a little blue locktite is a good idea on those screws, after my first ride my carbs looked the same exact way as yours, screws falling out all over the place. This bike must vibrate or something  :shok: man you got a nice set of vacuum gauges, those are sweet.
Title: Re: 1989 fj1200 idle problem
Post by: weymouth399 on June 30, 2016, 10:28:11 PM
Wednesday night beer/bike night, local Fj knowledge just saying. Interstate trailer sales Topsham.

Bob w
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on July 01, 2016, 09:10:15 AM
Quote from: jagcofj on June 30, 2016, 09:49:18 PM
Can any 1 tell me what are these wires for. There on the right side of the bike brown and black wires.




Thanks, your right i check for power this morning works off the key switch.  I have volt meter, I would like to install it on the bike.

Whats the is the best gps power adapter to use and a gps mount.   

I had a vmax, I sold it few months ago it has gotten uncomfortable after a car accident me was in. I miss riding motorcycles so started looking at let of bikes but had to be comfy over a 4 gallons gas tank and have a gas gauge.

Bikes I narrow it down to a bandit, gpz1100, fj1200. I was able to test ride the fj1200 and the bandit.  fj was comfy "O" the dealer that had the fj1200 1988 with 25000 miles on it he was trying to get $5200.00.




Title: Re: 1989 fj1200 idle problem
Post by: Moto1te on July 04, 2016, 12:05:48 PM
Nice looking bike. I think I saw it on eBay. Good luck with it !!  And YES...SWEET set of vac gauges !!!
Title: Re: 1989 fj1200 idle problem
Post by: jagcofj on July 04, 2016, 07:09:48 PM
Quote from: Moto1te on July 04, 2016, 12:05:48 PM
Nice looking bike. I think I saw it on eBay. Good luck with it !!  And YES...SWEET set of vac gauges !!!

thanks, the gauges i bought of off amazon 5 years ago i paid $62.00 at that time.