250 wheel and extended swing arm

[Chad]

 Sorry i posted this on one of the other sections, so i'm reposting. Does anyone have any pics of fjs like this? I'm getting ready to build my own arm and put a 250 on my 84 fj that i picked up for $300.   

[Pat Conlon]

Hello Chad, welcome.

Nope, never seen one one on a FJ. The largest I've seen was a 190/50-17 rear tire. (UK FJ site)

A 250 wheel huh?   On a $300 motorcycle?   Hmmmm. (I was gonna ask why? but I won't)

Ok I'll play....

First off:
No way, no how, will a 250 wide tire and the necessary 7 or 8" wide rim will fit a FJ swing arm.
1) You will need to get a custom swing arm made, then you will find;
2).The sprocket on the wide rim will stick out so far so to allow the chain to clear the side of the 250 tire, meaning the chain line will be waaaay outside the countershaft sprocket on the FJ motor.
A couple of  options;
First: When you get your custom swing arm fabricated you can get a jack shaft included to handle the offset chain or, Second: Get a custom longer output shaft made for the FJ and install a output shaft support plate like the drag racers do. Take look at Sandy Kosman's catalog and you will find these output shaft support plates for Kawasaki and Suzuki drag bikes....alas nothing for the old FJ...   http://www.kosman.net/

HTH

[Chad]

Thank you Pat. And hopefully i'll get some pics of my bike on here soon. ya i knew i was going to haft to run a jack shaft arm, was just was wanting to see if there where any pics out there. oh and believe it or not even though i only paid 300 for my bike it is in great shape. it has V&H supersport pipe, flatslides, filters, coils and 2nd gear was replaced.

[FJmonkey]

Something like this?

http://www.fjowners.com/index.php?topic=555.msg4154#msg4154

[Chad]

ya thats about what im going to do to mine. i mite even sell my 250 and go ahead and go with a 300 since im going to have to build my own jack shaft arm anyway

[Chad]

100_0490

[rktmanfj]

ya thats about what im going to do to mine. i mite even sell my 250 and go ahead and go with a 300 since im going to have to build my own jack shaft arm anyway

What's the widest one they make?

That's what I'd put on there.     

Randy T
Indy

[Chad]

do you mean wheel size? Oh and i just added 4 pics of my $300 fj to the gallery. couldn't figure out how to add them to this post, not to computer savy.

[Marsh White]

What's the widest one they make?

That's what I'd put on there.      

Randy T

I agree.    In MotoGP they are running, what, 400 or 450 wide rear tires now?  While that kind of advanced racing technology may not have trickled down to us mere mortals yet - at least with a 250 or 300 wide rear we can dream of riding like Rossi as we take those corners!  

And maybe you can get rid of that pesky side stand too! 

[Chad]

Don't know if i will be doing any of that but i love the low, long, loud & wide. The biggest i've heard of was a 460.

[Chad]

i'm really wanting to do some motor work and get some respectable power out of it.(over stock) Oh and put a spider pipe on it.

[rktmanfj]

Don't know if i will be doing any of that but i love the low, long, loud & wide. The biggest i've heard of was a 460.

i'm really wanting to do some motor work and get some respectable power out of it.(over stock) Oh and put a spider pipe on it.

Well ya, if yer gonna do all the work to get that 460 under there, ya gotta do somethin about that wimpy-assd stock motor.       

Randy T
Indy

[Yamifj1200]

Don't know if i will be doing any of that but i love the low, long, loud & wide. The biggest i've heard of was a 460.

Remember theres only one letter differance between cool and fool......


Eric M

[Chad]

ya and i'll take either one in this case.

[Pat Conlon]

Hey Chad, we missed your introduction. Tell us about yourself and your experience with motorcycles. I'm curious. Tell us about your bike collection, your favorites, etc....
TIA   Pat