I'm new, already installed gsxr shock.

[Zombarian]

Has anyone done this and kept the original airbox? Problem I'm having is that the airbox is connected to the battery box is connected to the inner fender and I've chopped that bit up to accommodate the shock so now the airbox is mostly held into place by the wimpy spring things on the rubber boots, I'm sure using an actual pipe clamp would keep them there better but I still feel like it should have another mounting point so it's not sitting on top of the shock mount, or held up by a bungee cord like I have it now.

So I'm wondering if one of the newer airboxes will fit (the carbs seem to be the same size so it's mostly about the rest of the box) and if I can somehow mount the new airbox in a more reasonable manner, or if I should just epoxy some nuts and make some brackets to keep the old airbox in place.

What do the 250 racers use for airbox mounting? Do they just keep the inner fender and battery box and so on?

[alex.s]

look guys, it's the male @Zombiphone. he even owns practically the same bikes.

[alex.s]

maybe its time to switch to v-stacks instead of an airbox?

[ForceofWill]

You adamant about keeping the stock box? Why don't you go with the K&N and just rig something up temporary

[Zombarian]

Yeah, the airbox is a must, I'd like to keep it legal for race regs, I've heard the gsxr shock might be a grey area if you grind down the ninja bushings but all the suspension linkage is untouched, so it should be within the spirit of the rule or whatever.

[DEFY]

welcome!!!

[Zombarian]

Originally Posted by DEFY

welcome!!!

Thanks!

[alex.s]

Originally Posted by Zombarian

Yeah, the airbox is a must, I'd like to keep it legal for race regs, I've heard the gsxr shock might be a grey area if you grind down the ninja bushings but all the suspension linkage is untouched, so it should be within the spirit of the rule or whatever.

you actually need shorter dogbones with the gsxr shock, don't you?

[Zombarian]

Originally Posted by alex.s

you actually need shorter dogbones with the gsxr shock, don't you?

I'm not an expert, so I could be wrong, but I believe you need shorter dog bones if the springrate is too high for your weight and you back off the preload, so the dog bones counteract whatever that does, if that makes any sense, but you could also just change the spring rate, supposedly a gsxr 1000 spring will have a lower rate.
But as far as bolting it up no you don't need to change the dog bones, on the newgens you need to space them out an inch to clear the spring I guess.

[alex.s]

the dog bones set rear seat height and dont have anything to do with spring rate. the gsxr shock is an inch and a half shorter or something than the stock shock. which means the rear will sag if you dont get shorter dog bones

[csmith12]

Welcome!

I installed my gsxr shock as described here. I never touched or cut my airbox during the install.

[Zombarian]

Originally Posted by alex.s

the dog bones set rear seat height and dont have anything to do with spring rate. the gsxr shock is an inch and a half shorter or something than the stock shock. which means the rear will sag if you dont get shorter dog bones

Huh, most people online mentioned that the two shocks were close enough in length that they couldn't tell a difference, certainly a smaller difference than an inch and a half. I wasn't trying to say the dog bones affect spring rate, I was trying to say spring rate would affect preload which would in turn affect height (or at least sag), so if you don't adjust the preload there wouldn't be a height difference right? Assuming the two schocks are nearly the same length of course.

Originally Posted by csmith12

Welcome!

I installed my gsxr shock as described here. I never touched or cut my airbox during the install.

Was that on a pregen? Because the newgens mount the batteries differently and on the pregen the airbox/battery/inner fender all mount up to the shock mount I sawzalled to fit the gsxr reservoir.

[csmith12]

Ah, right James. That was on a newgen, sorry. I see in your profile, you have a 04. I have my pregen tore down to frame right now, I would have to go see to remind myself of the mounting points, but I do plan on installing a gsxr shock on that one as well. Assuming nothing out of the ordinary, I plan on reinforcing the mounting like I did the airbox on my 4wheeler. Zip Ties... :\

[Zombarian]

Just figured out a solution, should work ok, basically just shoved a bolt of indeterminate size and a suitable washer through the little unicorn horn on the airbox that locates it in the hanging rubber hole under the gas tank...
In addition to pipe clamps of course.

[csmith12]

Originally Posted by Zombarian

In addition to pipe clamps of course.

"Hose clamps... when zip ties and duct tape just will not do." - csmith12.