Project Freestyle

Freestyle72 · Post by **Freestyle72** » Thu Jan 20, 2011 9:49 am

I think I may just use an external high pressure fuel pump on that tank because I like the size and shape of the YZF tank with my current configuration. I have the 03+ r6 tank it looks OK to me but not really as finished and nice as the YZF tank. The only other tank I want to test fit is the 06+ style of R6 tank which I haven't yet gotten around to doing. The thing about using an intank motorcycle fuel pump is that I could hook it right up to my throttlebodies using OEM fitting and it would be really nice fit and finish wise. But I haven't had much time to even look at my bike let alone take the time to test fit my throttlebodies and such. Hopefully I will get to that this weekend.

trifgeorge · Post by **trifgeorge** » Wed Mar 23, 2011 3:17 am

Freestyle72 wrote:Found it!

What year is the bike that you took the sprocket off from?

Freestyle72 · Post by **Freestyle72** » Wed Mar 23, 2011 5:21 am

trifgeorge wrote:
Freestyle72 wrote:Found it!

What year is the bike that you took the sprocket off from?

I have a 2005 ZX6R so that is the sprocket that I used. But from what I read I think the front sprockets are the same on all the ZX6Rs from 03-06.

trifgeorge · Post by **trifgeorge** » Wed Mar 23, 2011 7:56 am

Ok. So it's a 13.6 mm wide sprocket.

The '98 till 2001 ZX6r have a 15.7 mm wide sprocket

I'm making basically the same mod to my '92 600 but with a gsxr 600 srad swingarm. The thing is that i try to line up the sprockets and i'm having some trouble doing it. The wheel is centered with the frame (so that you know from the start) I widened my stock yamaha sprocket to 15.7 mm by welding another old sprocket to it and cutting the teeth. The chain seems straight but when i use my laser guide it shows me that i need to widen it up to 21.4mm (adding 5.7 mm to the already widened sprocket). I did that too, but the chain now hits the frame underneath the left side joint between the swingarm and frame. Now i left the front sprocket at the width of 15.7 mm, haven't driven the bike yet so i don't know how it behaves. I'm pretty scared driving it like this. I could also try and grind away some material from the place on the frame where the chain hits, but i'm concerned about losing frame strength after that.
Need your advise guys. What should i do? Run with this setup (15.7 mm wide front sprocket), or should i grind the frame and run the 21.4 mm front sprocket?
Thanks

Freestyle72 · Post by **Freestyle72** » Wed Mar 23, 2011 10:21 am

How did you center the wheel in the frame? The shockmount has an offset, did you line up the FZR's mount with the GSXRs? Or did you respace the wheel in the swingarm? I have a GSXR600 swingarm at home I am going to replace the 750 swingarm with this instead. My chain is straight and I only needed about 10mm of offset or whatever the stock 05 ZX6R sprocket gives and that was enough. If I have time I'll try to check for you when I get home from work tonight. Why did you use the 98-01 Zx6R sprocket btw? Front sprockets are inexpensive. Like $15 new, not sure why you wouldn't just pony up isntead of welding sprockets together. Also I don't really like the idea of a welded sprocket as I wouldn't really trust how straight it is.

Forget about the front sprocket for a second and just pull the chain straight from the rear sprocket and let me know if it contacts the frame. Also if you have a camera can you please take some pictures of the wheel in the swingarm, any spacers you may have made, and also pictures of the shock linkage and dogbones you are using under the bike. It may very well be that your wheel isn't exactly centered, or perhaps you are using a different model wheel than I am. Anyways pics will help us spot any shortcomings you may have but not describe.

trifgeorge · Post by **trifgeorge** » Wed Mar 23, 2011 1:27 pm

I have a camera and i will take some pictures tomorrow. This i what i did with the swingarm and wheel. I bought 4 17x40x12 mm roller bearings, made 2 1mm bushings for them to reduce the inner diameter from 17 to 16 mm to be able to use the stock swingarm axle. I then cut 5 mm on each side of the swingarm pivot area. Put 2 bearings on one side, fitted the bushing, then put the other 2 bearings in the other side. Fitted the swing arm and the wheel and it was dead centered. I measured that by measuring the frame width at the upper shock mount area and finding the center and by marking the center of the tire in 2 spots so i can align the laser beam well. It was dead center. I noticed that there is a small offset at the point where the dogbones meet the mount on the swingarm (didn't measure the offset, but i think it's about 4-5 mm towards the right side of the mount). I welded the sprockets because the funds are tight as hell. I am using the stock fzr dogbones as they are the same length as the gsxr ones.
It's quite odd because if i try to align the dogbones and the swingarm mount i would end up with aligned sprockets but not a centered wheel. And if i try to center the wheel by doing custom spacers, i would end up where i started in the first place. The thing is that no matter how you get around it , it will always be a misalignment of the sprockets if i use the ninja one.
Let's think about it like this: let's put aside the swingarm and the shock and dogbones. We have the frame and the rear wheel. In order to have them centered, the center of the wheel/tire, has to be aligned with the center of the frame; but the wheel itself and the sprocket carrier have a given width that moves the rear sprocket to the left; now with the wheel aligned to the frame, and the engine bolted to the frame, we need to move the front sprocket as far out to the left as we can to align it with the rear one; so in this case the chain will hit the frame no matter what.
In my opinion there nothing i can do with the swingarm or the wheel that will keep the wheel centered to the frame and the sprockets aligned without the chain touching the frame. It's not touching so bad that the line of the chain is bent, it just scratches it, but with the time, the rivets on the chain are going to get worn and the chain may fail.
And by the way the rim is a 5.5 inch one.

Freestyle72 · Post by **Freestyle72** » Wed Mar 23, 2011 1:56 pm

Ok that's fine I had the 5mm mismatch of the shock mount on the frame and the gsxr swingarm. Are you using the stock SRAD spacers? I didn't have such tight frame clearance as you are having with my wheel mounted up with stock SRAD spacing. Further more a couple people have done GSXR swingarm swaps (not SRAD, but they have the same offset of the shock, and even though the wheel is not the same, the dimensions are identical). And neither of them reported the chain hitting the frame. They only thing I can assume is your measurement of centre is off, or something is wrong with where your motor sits. Do you have a yzf600 motor in there by any chance?

I don't know george. I can post pictures of my set up later. I am trying to buy a mill right now actually so I can make my own shock linkage because I don't like how my stuff is set up right now.

Also since you used the stock dogbone length, I can only assume your chain is hitting the swingarm as well. At least it did on my bike when I had the stock GSXR dog bones on there since they made the bike sit higher. I shortened my fox shocked by winding it down and also made longer dog bones so that the chain can clear the swinger. My bike sits on the stock kick stand just fine so I don't think I got any lower than stock if it all. Maybe like 1/2" lower max. However I am trying to figure out a way to get more length from my GSXR forks so I am going to run a delrin slider block on my swingarm and just let the chain rub on that.

kilika2 · Post by **kilika2** » Wed Mar 23, 2011 2:05 pm

Freestyle72 wrote:This is just a photoshop but what are your thoughts on decal like this to cover up the paint fudge up?

No one ever quoted on this picture. I really like this idea. I'm partial to two tone though. Looking good.

Chris.

trifgeorge · Post by **trifgeorge** » Wed Mar 23, 2011 2:39 pm

All the spacers are stock. Nothing changed but the bearings on the swingarm and the front sprocket. I will double check tomorrow if the wheel is centered and take photos. The bike sits quite nice, and the chain only touches the swingarm if the rubber chain guide in on, if i take it off, the chain does not touch the swingarm anymore. I have the FZR 600 3HE motor on (i wish i had the yzf 600 one

). I like the height of my bike; it compensates with the shorter gsxf 600 forks.
I post the pics tomorrow and i'm waiting for yours:D.

trifgeorge · Post by **trifgeorge** » Thu Mar 24, 2011 10:42 am

you my friend were so damn right. it is 5 mm off centered to the left. i guess my laser tool is f*ck up, or i'm just an idiot and i don't know how to use it right. i'm off to resolving the problem

Freestyle72 · Post by **Freestyle72** » Thu Mar 24, 2011 11:56 am

trifgeorge wrote:you my friend were so damn right. it is 5 mm off centered to the left. i guess my laser tool is f*ck up, or i'm just an idiot and i don't know how to use it right. i'm off to resolving the problem

Haha get to it!!!... glad you figured it out. It's always the best feeling when you figure one of these problems out. I always go into chat and bounce ideas off the guys in there to help me get through some of my stuff.

Freestyle72 · Post by **Freestyle72** » Thu Mar 24, 2011 11:59 am

trifgeorge wrote:you my friend were so damn right. it is 5 mm off centered to

Sorry also, what are you referring to? The wheel being 5mm offcenter to the right? Or what? Are you saying you are going to move your wheel 5mm to the right... or the swingarm? Maybe clarify for other people who might run into the issue.

yamaha_george · Post by **yamaha_george** » Thu Mar 24, 2011 12:24 pm

T_G,
if the rear sprocket naturally sits so far left as to require the front sprocket moving left and the chain thus rubs the frame, you need to narrow the sprocket carrier "hole" (where the cush drive lives) by some say 5mm . The only thing to be aware of doing this is that cutting down the cush drive will bring your chain closer to your tyre /rim.

Moving the chain line right like this means you will
a} not bang the frame
b} put less leverage load on the output shaft bearings & seal.
Oh yup I also remenber that a couple of guys have "lowered" the mounting steps for the rear sprocket into the casting that and the cush drive mod should easily get you 5 mm

trifgeorge · Post by **trifgeorge** » Thu Mar 24, 2011 2:10 pm

Thanks Y_G but it is not the case. i moved the whole swingarm by 5 mm to the right. It made the whole difference in the world! Now the sprockets line up and the wheel is centered with the frame. Freestyle my friend you are the man! :udaman

When i started doing this mod i shaved 5 mm from each side of the swingarm's pivot area, and when i installed the bearings I inserted them until they were flush with the swingarm. Now, I moved the right side and the left side bearings 5 mm to the left(left side bearings came 5 mm out of the swingarm and right side bearings got 5mm inside of the swingarm). That seemed to be the answer to my problem. I now run a 15.7 mm wide sprocket in the front and the sprockets are lined up. So is the wheel with the frame. The dogbones also line up very well with their mount on the swingarm.
Thanks guys!

yamaha_george · Post by **yamaha_george** » Thu Mar 24, 2011 6:01 pm

trifgeorge wrote:Thanks Y_G but it is not the case. i moved the whole swingarm by 5 mm to the right. It made the whole difference in the world! Now the sprockets line up and the wheel is centered with the frame. Freestyle my friend you are the man!
When i started doing this mod i shaved 5 mm from each side of the swingarm's pivot area, and when i installed the bearings I inserted them until they were flush with the swingarm. Now, I moved the right side and the left side bearings 5 mm to the left(left side bearings came 5 mm out of the swingarm and right side bearings got 5mm inside of the swingarm). That seemed to be the answer to my problem. I now run a 15.7 mm wide sprocket in the front and the sprockets are lined up. So is the wheel with the frame. The dogbones also line up very well with their mount on the swingarm.
Thanks guys!

Well I am glad we got a result that works for you T_G

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