Bandit Alley

MODEL SPECIFIC => SUZUKI BANDIT 250 & 400 => Topic started by: gsxr400 racer on April 11, 2007, 03:50:10 PM

Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 11, 2007, 03:50:10 PM: Click here for Japanese Okshon of crankshaft. (http://www.okshon.com/v.cgi?YYurl=http://page6.auctions.yahoo.co.jp/jp/auction/f48219489)
Title: here is the crank to stroke your bandit or gsxr!
Post by: interfuse on April 11, 2007, 05:32:23 PM: The translation on that kills me:

* Before a bid Self-introduction Please have a look and it can be immediately awarded in *1 bid!!

- It is an old-things type impulse. It is the thing removed from the engine of storage for a while. There is no security for operation un-checking. Those who can understand.

* Please understand that connection/dispatch may be overdue for convenience' sake.

- in mailing cost former payment dispatch, it is \1,500 (the whole country -- uniform).

- I need your help by no-cancellation / no claim / no return.
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 12, 2007, 12:54:39 AM: yea yada yada yada i just buy the stuff and deal with it to much jibberish i just know what im looking for!
Title: here is the crank to stroke your bandit or gsxr!
Post by: Bartjan on April 12, 2007, 08:16:02 AM: is it the 45,2mm stroke version, the 47mm stroke version or an original?
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 12, 2007, 11:26:21 AM: gsx400fs Crank is 45.2 with stock pistons 56cc gives you 445cc's
with a big bore kit 45.2 by 59cc 494 cc's
Title: here is the crank to stroke your bandit or gsxr!
Post by: Red01 on April 12, 2007, 12:35:05 PM: Hmmm... a B5, huh? :bigok:
Title: here is the crank to stroke your bandit or gsxr!
Post by: bonobandit4 on April 12, 2007, 02:40:47 PM: Quote from: "gsxr400 racer"
gsx400fs Crank is 45.2 with stock pistons 56cc gives you 445cc's
with a big bore kit 45.2 by 59cc 494 cc's

I assume you'd need a gsx4 cam as well...
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 12, 2007, 07:37:54 PM: Why would you think that? But no :stickpoke:
Title: here is the crank to stroke your bandit or gsxr!
Post by: 92mx83 on April 13, 2007, 02:03:51 AM: Quote from: "Red01"
Hmmm... a B5, huh? :bigok:

That strokes my crank... :wink:
Title: here is the crank to stroke your bandit or gsxr!
Post by: Bartjan on April 13, 2007, 08:06:57 AM: Quote from: "gsxr400 racer"
gsx400fs Crank is 45.2 with stock pistons 56cc gives you 445cc's
with a big bore kit 45.2 by 59cc 494 cc's

45.2 by 59cc gives 2666.8cc's :stickpoke:
of course we all know you mean mm's :lol:
Title: here is the crank to stroke your bandit or gsxr!
Post by: Postal on April 14, 2007, 06:08:04 PM: Approx $83 US, is this for real?

Could this be a 600 killer with a big bore kit?
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 14, 2007, 06:39:01 PM: yes 4 real
Title: here is the crank to stroke your bandit or gsxr!
Post by: BrianM on April 15, 2007, 07:30:54 PM: Alright Jay, how does Okshon work? After looking into my engine a little more today (it's in sad shape), I've resigned that I'll need to rebuild it sometime. And if I'm going to do the work of a rebuild, I ought to make it the most it can be.... so I want the crank (And eventually, one of your kits ~ but that'll have to wait a bit).

Ah, hell... I just made an account and am reading their FAQs. I might have questions later.
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 15, 2007, 08:09:08 PM: Brian you got PM :stickpoke:
Title: here is the crank to stroke your bandit or gsxr!
Post by: Bartjan on April 16, 2007, 06:55:24 AM: You should know since the stroke is 4.8mm longer, the piston will go 2.4mm higher. so the cilinders+head should be raised so the pistons dont hit anything.
problem is the camshaftchain which needs to be long enough (probably is though) and the timing of the cams which will probably be shifted a small bit.

Also we don't know what measurements will differ from the original cranckshaft, if the bearings have different sizes it could be possible custom bearings need to be made.

Not to dissappoint you, but there could be alot of work involved :wink:
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 16, 2007, 12:50:45 PM: I'm sure Brian is very capable , he has a racing background. Just a small assumption on my part! LOL
Anyways bearings read the code on the crank match it up with the codes on the cases plastigauge and go from there. I would get it lightened for sure as it is heavier than the b4 73 crank. But this is the same set up that factory Suzuki used in japan on the 76a gsxr but with a newer crank same model ( difference in cranks from a 76 and a 73/b4. 76 crank gears are straight cut (which means that they don't have side pull ( which some engineer will be able to describe what this means more) You can use a 76 but you need the clutch basket to go with it. You can also use a complete 76 bottom end and cylinder, and have a spin on oil filter but here is the kicker you may as well call it a rf400 motor pics to follow this goes right in the b4 or 73a) Back to the crank the b4 and 73a are identical both have the helical? or slashed cut gears as is the clutch basket main gears.)))) Do some research the b4 the 73a the 76a the rf400 the 71f the impulse and the katana 400 and the vv there are all parts bin bikes from Suzuki and share a lot of parts.
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 16, 2007, 01:26:48 PM: B4 vv crank

(http://img230.imageshack.us/img230/2554/b4vvcranksameas73aandb4fl1.jpg)
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 16, 2007, 01:37:34 PM: RF400 motor dam side covers are a dime a dozen now.

(http://img63.imageshack.us/img63/6965/rf400motor1gu5.jpg)

(http://img59.imageshack.us/img59/4876/rf400motor2td3.jpg)

(http://img63.imageshack.us/img63/492/rf400motor3vs7.jpg)
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 18, 2007, 11:18:59 AM: Crank sold i helped a brother get it from the bored and i'll let him tell you about it. He should have the fastest b4 or should i say b5 around.
Title: here is the crank to stroke your bandit or gsxr!
Post by: JmuRiz on April 18, 2007, 12:34:12 PM: Awesome, a ~500cc bandit will be very cool.

You'd probably have to go with a GSXR400 curved radiator at least right?
Title: here is the crank to stroke your bandit or gsxr!
Post by: Bartjan on April 18, 2007, 12:54:49 PM: sorry BrianM, but it is me who got it...
i hope your not mad :wink: but its perfect for the pistons i alreaddy ordered

the pistons i ordered are 59mm pistons which are lower then the standard pistons. So i dont have to raise or lower the top-end alot, which is good for the camshaftchain. So it will become a B5 idd.
495cc instead of 398cc :motorsmile:

it will probably take a few months before everything is good to go, so i should go and get a dynorun beforehand to compare...

about the radiator: i guess i will find out, doesnt matter as i also have some other (honda rvfr400 and honda nsr50) radiators lying around
Title: here is the crank to stroke your bandit or gsxr!
Post by: BrianM on April 18, 2007, 10:27:24 PM: No worries from here, I'm working on suspension first (have my Fox ready to go on tomorrow afternoon and still shopping for 41mm RSU cartridge forks so I can keep the stock look but get all the benefit of cartridge forks)... I'm more a 'handling' kinda guy than power.

But I do have one Really low compression cylinder, and I liked the idea of doing a B5. But I'll probably just do Jays 442 kit next winter (or the one after that.... or maybe it's just valves, and I won't bother with anything to the cylinders ~ need to put a leak-down tester on it).
Title: here is the crank to stroke your bandit or gsxr!
Post by: Postal on April 19, 2007, 05:48:57 AM: The info on this crank needs a sticky so that other who wish to build a B5, including me, can easily reference it.
Title: here is the crank to stroke your bandit or gsxr!
Post by: gsxr400 racer on April 19, 2007, 09:23:22 AM: Quote from: "BrianM"

But I do have one Really low compression cylinder, and I liked the idea of doing a B5. But I'll probably just do Jays 442 kit next winter (or the one after that.... or maybe it's just valves, and I won't bother with anything to the cylinders ~ need to put a leak-down tester on it).

LOL , Make up your mind woman! (Sorry ladies let the canning begin)
Title: here is the crank to stroke your bandit or gsxr!
Post by: Red01 on April 19, 2007, 10:04:25 AM: Quote from: "Postal"
The info on this crank needs a sticky so that other who wish to build a B5, including me, can easily reference it.

Maybe we can get Jay to write up a new topic on B4 engine mods covering cams, cranks, big-bore kits, etc. and just put it in the B4 FAQ...

Red01 > :stickpoke: < gsxr400 racer
Title: here is the crank to stroke your bandit or gsxr!
Post by: Bartjan on April 19, 2007, 10:16:28 AM: you mean you dont know where the search button is? :stickpoke:

just for the info:
as you can see here (http://www.suzukicycles.org/GSX-R-series/GSX-R400.shtml), GSXR400 from 1984 till 1986 have the bore and stroke of 53x45.2mm and as you can see here (http://www1.suzuki.co.jp/motor/impulse/special/1982.html), so does the gsx400fs impulse from 1982 till 1985

as you can see here (http://www1.s-cat.ne.jp/ishizakaauto/GSX400%20impulse.htm) and here (http://www1.suzuki.co.jp/motor/impulse/special/1994.html) the gsx400 impulse from 1994 and onwards has a stroke and bore of 52x47mm, so it could even be possible to go further :bomb: