FOUND - 1989 FJ1200

[ddlewis]

Who is Geoff March

think he meant Greg march..  former fj guy and computer geek.
he built a message archive site from yahoo list scrapings among other things

[racerman_27410]

Hey Frank, if you had to do it over again...would you lighten the crank?

Pat,

yes i would do it again .... it was quite a learning curve with this engine ( in more ways than one ) but after getting about 20K miles on it i have my right hand calibrated better......smooth is the key word.

what the lightened crank provides when you really want to get on it is priceless.... especilly with flatslides.

snap the flatslides open at 3 grand and it hits like a very big and pissed off two stroke coming up on the pipe
instant go literally..... its got so much torque i take off from stops in second gear most times using no more throttle than i used to use in first with the stock engine. (and i'm talking "taking off" in second)

with stock carbs ....  snap the throttle open at 3 grand and the revs still build much quicker than with a stock crank... but you have to wait about a half a second while the slides open... .then the kookaloo comes.

the stock carbs help smooth out ham fisted throttle applications (deceleration especially )  and to be honest they do really well and pull to about 9200 RPM (and plenty fast) before they cant flow any more and it falls on its face.... the FCR's will pull all the way to 10500 with much more on the big end.

IE more speed gained vs.time........ hypothetically speaking 

.Kookaloo!

\

[racerman_27410]

I'm no expert Frank, [I've only got the one] but that does not look at all like a penis to me.  Perhaps you've got a set of Freudian glasses on?

Just checking.

Dan

no thats what i meant.

Kookaloo!

[lawson]

I posted pictures of differences between Supertrapps in misc fj gallery.  I also posted pictures of Bassani system that i have for another member who posted an ad because he didn't know what he had on his fj  -which is a Bassani slip-on system

[Kopfjaeger]

i must say thats a tardy piece of engine there!!!  cant wait to one day do mine... sold my gpz 1000rx, not doing anything but mainteneace to the fj till the gsx is on the road then the effy comes off the road to get its loving.... being lazy or patient i cant work out which one...... .... still thinking along the lines of a kerker exhaust for the old girl.... yoshi kit for the gsx es..... ahhhh the pipe dreams you can have.... lol either that or buy another drum kit.... chuckles

[FJato]

.......The reason why is the end pipe -megaphone-on a 89-90 Supertrapp is 6" shorter than Supertrapp for a 84-87.Better pipe was made for 89 -90 by Supertrapp.Part number on end pipe for 89 is 027-4120 and 86 is 027-3070.The number is stamped on flange tab.Also for anyone with 91 -93 number is 027-4122.The supertrapp for 91-93 is a system only for these years.Earlier year Supertrapp WILL NOT FIT 91-93.It requires a "s" pipe that goes between header and end pipe which came with system new -where previous year Supertrapps were end pipe into header.      

Does anyone know what makes the 91 -& later bikes different than earlier models so that they require a different end pipe and the additional "s" pipe? I have a 1992 FJ and purchased a used Supertrapp exhaust, but it has the the 027-4120 (89-90?) pipe  . I have fabrication skills and the tools that go with them, but wonder how challenging the adaptation might be, prior to removing my functional but leaky (gaskets) stock exhaust.

[racerman_27410]

Does anyone know what makes the 91 -& later bikes different than earlier models so that they require a different end pipe and the additional "s" pipe? I have a 1992 FJ and purchased a used Supertrapp exhaust, but it has the the 027-4120 (89-90?) pipe  . I have fabrication skills and the tools that go with them, but wonder how challenging the adaptation might be, prior to removing my functional but leaky (gaskets) stock exhaust.

AFAIK the only difference in the pipes are the mounting point locations for the exhaust Can... everything else is the same.

Kookaloo!

[FJato]

Thanks Racerman. I'll find out for sure over the winter. They're forecasting a wetter and colder winter here in Seattle, so there will be time that the bike sits idle and I won't feel bad about having it apart.