i have a 87 yamah fj1200
I also has a 91 yamaha fj1200 frame
does anyone knwo if these frame are interchangable?
Front engine mounts are different.
Harvy
so what do i have to do to make this work? make engine mounts? or can i buy some?
and also, some extra information. I only have the main frame on the 91. not the seat frame? or w.e you all it, the swing arm, the frame part were the engine sits on. i just have the main frame with the vin number on it and thats all.
Quote from: irishluck on April 01, 2011, 09:11:40 AM
and also, some extra information. I only have the main frame on the 91. not the seat frame? or w.e you all it, the swing arm, the frame part were the engine sits on. i just have the main frame with the vin number on it and thats all.
I'm not sure if the lower frame rails (which include the engine mounts) are able to be swapped between generations. If they are, then you should be able to do it.
Any one else tried this?
Harvy
I would like to know too.Can I install 1200 lower fraim rail's on my 1100 frame and then install a 1200 engine into the 1100 frame ?.
Seems simpler than puting a 1200 top end on the 1100 bottom end if it can be done.
I am guessing theres more too it than frame rails as I have not read about it.
hey heres what i got so far, i put the 91 frame up to the 87 bike just to kind of look and see if there were any differences.
So far as i know of the forks and the seat frame? will mount up the 91 frame BUT the side frames witht he engine mounts on it are completly different on the 87 to the 91.
Thats where im stuck with right now, but now i have another question. if there both fj1200, did they both use the exact same engine? cause if so i can just get those side frames and ill be good to go.
Can a 1200 engine be installed in a 1100 frame if i use 1200 lower frame rails ?Are the side plates the same rear mounts etc.What all would I need to do to drop a 1200 into a 1100 main frame.
The rubber-mounted '91 and later engine won't work, but any others should, just need the lower frame rails to match. The late engine may work if you change out the mounts, I don't know...
So a 86 or 87 would work.Rear bolts /side plate would match up then.With 86 or 87 lower frame rails.
the the mounting points are the same on all FJ and XJR engines.... the frame is where the changes are.
any year engine will work in any year bike.
So any 1200 motor will work in my 85 1100 with the 1200 lower frame rails that are the same year as the motor.
Any FJ engine will bolt into any FJ frame. Use the stock mounts off your 1100 unless you want to run the FJ1200 lower fairing(dust bin) then you would use the lower frame rails off a 86 to 90. The 91 and up is a total bag of worms.
Quote from: Flying Scotsman on April 08, 2011, 04:48:41 PM
Can a 1200 engine be installed in a 1100 frame if i use 1200 lower frame rails ?Are the side plates the same rear mounts etc.What all would I need to do to drop a 1200 into a 1100 main frame.
you dont need anything extra to put a 1200 engine into a 1100 frame.......like was said you just re-use all your existing engine mount hardware. The mounting points on all the engines are exactly the same for all years and models.
KOokaloo!
Thank you for clearing that up for me.
I feel under powered.I started up my 1999 GP1200 yesterday it has about 160-170 hp and runs on 100 octane it sounds freekin awesome and the race gas mixed with with 2 smoke oil smells wonderfull.I cant wait to get it to the water.The FJ really needs a 1250 or more with a ported head on it IMO.When I can afford to do it I will upgrade the FJ.I have a 1997 GP1200 for sale for $2000 I would even sell the 1999 GP1200 for $4200 or $7000 for both on a double trailer.I did just buy a EK ZZZ chain now I need a rivet tool to put it on.Going to do a little at a time as money comes available.Chain and forks are first but I will be watching for the right deal on a bigger engine.If I sell the 97 that would get me a nice engine for the FJ.
Did you replace the sprockets as well as the chain? If not, the old sprockets will tear that new (expen$ive) EK ZZZ chain up very rapidly.
Arnie
Quote from: Flying Scotsman on April 09, 2011, 10:31:12 AM
Thank you for clearing that up for me.
I feel under powered.I started up my 1999 GP1200 yesterday it has about 160-170 hp and runs on 100 octane it sounds freekin awesome and the race gas mixed with with 2 smoke oil smells wonderfull.I cant wait to get it to the water.The FJ really needs a 1250 or more with a ported head on it IMO.When I can afford to do it I will upgrade the FJ.I have a 1997 GP1200 for sale for $2000 I would even sell the 1999 GP1200 for $4200 or $7000 for both on a double trailer.I did just buy a EK ZZZ chain now I need a rivet tool to put it on.Going to do a little at a time as money comes available.Chain and forks are first but I will be watching for the right deal on a bigger engine.If I sell the 97 that would get me a nice engine for the FJ.
I am buying new sprockets.
yea i kinda dis agree with you guys on this "any engine will mount up to any frame thing"
That aint true, the engine mounts have to be swapped out. The engine mounts are not the same at all, sorry let me refrase that, the engine mounts are different with a 91 frame to an 87. The 87 frame mounts wont bolt up to a 91 frame. Have to get differnt mounts. everything else will mount up to it(already done it) but if i want to put the 87 engine into the 91 frame i will have to get new engine mounts to fit that frame cause the 87 engine mounts wont fit the 91
Quote from: irishluck on April 12, 2011, 10:13:24 AM
yea i kinda dis agree with you guys on this "any engine will mount up to any frame thing"
That aint true, the engine mounts have to be swapped out. The engine mounts are not the same at all, sorry let me refrase that, the engine mounts are different with a 91 frame to an 87. The 87 frame mounts wont bolt up to a 91 frame. Have to get differnt mounts. everything else will mount up to it(already done it) but if i want to put the 87 engine into the 91 frame i will have to get new engine mounts to fit that frame cause the 87 engine mounts wont fit the 91
how is it disagreeing when you are saying the same thing?
the engine and the mounts are seperate parts ......any engine will fit any frame (with the appropriate mounts for that frame)
KOokaloo!
Quote from: racerman_27410 on April 09, 2011, 10:06:08 AM
Quote from: Flying Scotsman on April 08, 2011, 04:48:41 PM
Can a 1200 engine be installed in a 1100 frame if i use 1200 lower frame rails ?Are the side plates the same rear mounts etc.What all would I need to do to drop a 1200 into a 1100 main frame.
you dont need anything extra to put a 1200 engine into a 1100 frame.......like was said you just re-use all your existing engine mount hardware. The mounting points on all the engines are exactly the same for all years and models.
KOokaloo!
well something like this. you cant use the same exsisting engine mount hardware. the mounting points may be the same but the engine mounts will not bolt up to the frame. the years are different. you would have to fabricate them to your frame or go buy new ones
Unless I miss interpreted this wrong
Quote from: irishluck on April 12, 2011, 02:15:06 PM
well something like this. you cant use the same exsisting engine mount hardware. the mounting points may be the same but the engine mounts will not bolt up to the frame. the years are different. you would have to fabricate them to your frame or go buy new ones
Unless I miss interpreted this wrong
I THINK what Frank is saying is that you
can use the 1100 mount hardware from an 1100 chassis to mount a 1200 engine in an 1100 chassis, without having to buy or fabricate anything. You appear to be saying the opposite.
Curious, has anyone else actually done this transplant that can clear this up?
Dan
Quote from: Dan Filetti on April 12, 2011, 03:36:14 PM
I THINK what Frank is saying is that you can use the 1100 mount hardware from an 1100 chassis to mount a 1200 engine in an 1100 chassis, without having to buy or fabricate anything. You appear to be saying the opposite.
Curious, has anyone else actually done this transplant that can clear this up?
Dan
EXACTLY! My current engine isnt even a FJ engine.... its a brand new (breathed on) XJR1250 engine......and its in my 86 Frame.
all the mounting points on the engine cases are the same..... the only caveat is that you must have the correct engine mounts for the year frame you are trying to use.
i dont see why its so hard to understand.
KOokaloo!
(popcorn)
Yeah, but I'll bet your holding it in with solenoids. :-)
DavidR.
Quote from: SlowOldGuy on April 12, 2011, 06:47:24 PM
Yeah, but I'll bet your holding it in with solenoids. :-)
DavidR.
Damn David, when did you become such a smart arse?? I thought that was my job.... You sure need to get to Boone.....lol
Eric M
We miss you David :empathy2:
KOokaloo!
Frank
ah ok well that makes since and ya i miss interpreted that
Quote from: racerman_27410 on April 08, 2011, 08:38:03 PM
the the mounting points are the same on all FJ and XJR engines.... the frame is where the changes are.
any year engine will work in any year bike.
wnat to reopen this post
im going to swap my 87 to the 91
my main concern and i want to be sure before i do this(pretty sure i know the anwser) but wanna make sure.
the fj1200 eng9ine will mount up to any frame cause they al lhave the same mounting holes in the casing, but ill have to get the engine mounts for that year of frame correct?
Quote from: irishluck on April 18, 2011, 09:51:35 PM
i'll have to get the engine mounts for the 91 frame?
YES! :good2:
to fit the 91 on engine on a previous 90 chassis the only mods necessary is to keep all the front big rubber mounts of the pre 90 model to fit into the front mounts of the 91 engine and drilling the lower rear mount of the 91 engine (it comes closed, even althought is there) to pass the long rear down chassis bolt of the pre90 engine. Note that you cant refit the dampers of the pre 90 engine to that bolt, so you must pass it with a little of space, not rigid mounted, and it doesn´t fix the engine to the chassisnever again. It is refixed only for security porpouse
It sounds more difficult that really it is. The only difficult is to extract the old, big and hardened pre 90 dampers
hm lovely ha
well i guess ill get ordering them and let ya guys know how it goes
thanks
anyoen know where i can get a cheap set of 91 frame rails=(
Cheapest i find so far is 170 bucks for both.
Are you considering putting the 87 body work on the late frame? Man if so you are opening a Major bag of worms. None of the forward frame mounts line up.
You think you have problems with the fuel system and the nosy engine , Man you have just begun to fight.
Quote from: tqmx1 on April 20, 2011, 12:05:58 AM
Are you considering putting the 87 body work on the late frame? Man if so you are opening a Major bag of worms. None of the forward frame mounts line up.
You think you have problems with the fuel system and the nosy engine , Man you have just begun to fight.
Irish, listen to Kim.
Judging by your previous posts, it sounds like you have your hands full. Why not get the bike back together, work all the bugs out, put some miles on it, then after understanding what you have, tackle the frame project.
IOW save your money for things you're gonna need to fix the PO's past sins...
cause I don't have a title to the 87, kinda a big thing ha the 91 frame does. and I already ordered new frame mounts for the 91
the engine and everything will bolt up just fine on the 91 as long as I have 91 frame mounts. The whole front end including forks and handlebars and what not will bolt up just fine too
The only problem ive come across so far is that the Headlight mount is different, not expensive and the subframe and swing arm. The subframe just needs a little bending to it but not an issue, and the swing arm I'm just going to have to see if i can work with it.
(http://i52.tinypic.com/24yqwep.jpg)
Quote from: irishluck on April 21, 2011, 10:10:38 PM
well just for your info, i already have the whole bike switched over to the 91 and running.....
Quote from: irishluck on April 21, 2011, 11:05:13 PM
it actually wasnt that hard, the big difference from the 87 and 91 was the frame moutns of coarse, also the foot rest are close but diffrent the swing arms are almost exactly the same, except for the center suppose, one is straight across(87) and the 91 has a slite curve, bolts up fine though, which mean my rear wheel, brakes and everything for rear end work perfectly. rear shock a little differnt but still worked. The front end, forks, tri clamp and steering bolted right up. the head light mount is different. wiring works all the same. same gas tank. The frames are pretty much exactly the same except for the engine mounts, and the fairing worked fine too.
Well just a followup post on how Irishluck did on his '91 frame swap. Looks nice and clean (uuuh, except it's not a '91 frame)
Quote from: Pat Conlon on April 22, 2011, 12:06:14 AM
(http://i52.tinypic.com/24yqwep.jpg)
Well just a followup post on how Irishluck did on his '91 frame swap. Looks nice and clean (uuuh, except it's not a '91 frame)
like i said.... troll.