Project XJ Crotch Rocket

Hey guys, I've gathered a few items for my crotch rocket project that I should soon be getting going. I have a rear faring for a Kawasaki ZZR1200, a Honda CBR600RR tank cover, and to SV1000 tailpipes. The pictures right now are just a test fitment.

I can't get the headlight off. I got it unbolted from the tree, and one screw out of the bucket, but theres one other in the bucket that is stripped out, and the bolts on the side don't seem to come out... No idea what to do. I don't want to snip any wires.

 

Being a crotch rocket enthusiest myself, I'm very anxious to see how this one turns out. Look forward to following the build !

Cheesy!

P.S.> If you need help sourcing out any more parts, hit me up, I'm fairly local, and seem to have endless resouces when it comes to finding cheap parts.

 

This should turn out to be a VERY interesting build... And drill the other screw out man! dont let that hold you up!

 

then you should send me the headlight...thanks in advance

 

I've got lots of left over parts, such as stock tail light, rear turn signals, one front (rubber boot on the other is ripped) rear fender, stock bars, plus these flat bars when I get a set of clubmans. The megaphones will be up for grabs as well. A rear grab bar, passenger foot pegs.. The list goes on

Thanks for the help Cheesy! Hopefully I can get that Hayabusa front faring soon!

Here's some more shots... I need a wider rear wheel.... I'll plan for that next year.

 

What's the purpose of the ugly Honda CBR600RR tank cover?
BTW, you know that if you change the muffler you will have to rejet the carbs, right?

 

In the name of (insert deity of your choice here), WHY are you doing this?!?

Crotch rockets have got to be some of the most uncomfortable bikes around to ride.

 

You shouldn't have to.

 

They're stock cans, so they are restrictive. I'll get a pic of the inside to show you what I mean. Besides, I'm gonig to be modding the intake as well, so I know I'm gonig to have to rejet. Im going to route a straight pip from the stock exhaust into the can to the outlet pipe inside the can (you will see it) so it will be loud.

The purpose of the "ugly" CBR tank cover is to add to the crotch rocket look. Also, it will hold an extra storage compartment. It's going to be moulded into the original tank. Maybe I'll make a ram air induction to flow with it, and cover up the bolt holes along the sides.

I'm having second thoughts about the rear faring, but I'm going to ahve to make due.

The reason I'm doing this is because I want to be different. Crotch rockets may be uncomfortable, but this is actually surprisingly comfortable. Even without a seat, it seems to fit really nice. I'll be making a nice thick padded seat anyway, and all the other crotch rocket boys will be jealous of my cushy bike

 

We've been down this exhaust road many times and the word on the street is that most of the backpressure is in the collector, the rest will come from the muffler if it has any baffle at all. Therefore you shouldn't need to rejet.

Maxim, do you have the old mufflers? I'm looking for some on the cheap. My left is fine, it's actually the right that I really need.
Thanks
The Buffalo

 

Yes, I have to remove the right side muffler. They were new when the guy who owned this before me put them on. It looks to have a bit of rashing, but I can let it go for cheap cheap Make an offer!

I actually like the sound that the collectors make, so I'm not gonig to change that part of the exhaust, but with the straight pipe going into the muffler, and bypassing the baffle all together, you think I may need to re-jet?

I did a blow test, I blew into the inlet, and felt for any air coming out the tail pipe and didnt feel anything, Then blew in the outlet and felt for air at the inlet, and felt a steady flow. So obviously the muffler restricts alot!

 

Could you take a few pix of both of those old mufflers and then we'll talk about price.
Thanks
the buffalo

 

Hey guys, just a little update! I had my friend helping me on Sunday, and we got some more stuff done to it.

Ok so what we did Sunday was, remove the headlight, the right side muffler and peg bracket, and took the brake caliper off the front. Also started designing the "tool compartment" in the gas tank cover. It doubles as a cup holder I plan on getting things too look like the flow, so maybe some aluminum panels will be in the works for around the tail section... Also I'm thinking about making a ram air system to go along the sides of the tank so it makes it look a bit better.

Did some work on it yesterday as well, just waiting for pics from that to be uploaded. Got the tank cover to fit snug on the original gastank, and found a problem with the bike lol. Started it up and let her run. She has a problem holding idle. It will idle, but when I rev it, it sticks open at whatever I rev it to, and very slowly drops back down. Also gas is leaking from somewhere. The carbs need to be synched, I was tolday that by the person who sold it to me, but I don't understand the gas leak. I used the tank off my other bike which is fine, so maybe one of the fuel lines?

I also can't manage to get the collector off the headers with them on the bike, so I guess I have to take the whole system off. I didn't want to do that.

These pictures are kinda rough, but it gives you the general idea. I plan to take pictures during the day.

The entire wiring harness goes through the headlight...



Heres the bike naked:


Both cans being test fit: (I had a crazy idea of having the cans under the frame, instead of having the collector down there, because they actually fit. When I go to do the oil change, I will test fit them under there to see what they look like.)



Headlight bucket off completely:


Fixing the crack in the tank cover:


Testing the seat position again:



Secret Compartment: (shh don't tell the cops)

 

I was looking at them, and they are pretty dented up and some rash on them... The picturem akes them look better than they really are.. I can get more pics.

 

good to see the progress, getting more done than me these days :roll: ... one problem that I have and looks like you may have, what's ya going to do about the skinny back tire?, looks way too small compared to the tail, ant thoughts?!...good job BTW

 

Did anyone else notice that he's fitting a cup holder??? thats an awesome for a cruiser, imagine cruising down the highway with an open fac ehelmet sipping on a cup of coffee....

 

Yes, I found the pesky skinny rear tire problem right away. My original plans were to swap out the swingarm for a monoshock swingarm. Preferably from an R6. But, for now it's staying with the stock rearend. Luckily the drum brake is cable, and the frame is already wide enough to house the swingarm. Just gonig to be a matter of getting an extended front sprocket (which requires modifying the cover), and welding in a cross bar in the frame for the shock to bolt up to.

I'm going to tackle that next year, as this year I just want to ride... A bonus about this dual shock system, is that it rides really soft compared to crotch rockets...

Update (done Monday/30th): Started the bike this day, no pipes after the collectors, damn loud (but same loudness as my other bike) and the vibration was amazing... I used the tank off my other bike, which has no leaks in it whatsoever. I encountered a problem. When I rev it, it stays at where I rev it to, and slowly revs down to idle, then has a choppy idle and pretty much quits unless I throttle it. Another BIGGER problem. Gas leak. Looks like it's coming from the gas line going into the carb fuel rail. When I get this fixed, I'll see how it runs again, and see if it does the same thing. There was mention that the carbs either needed to be synced, or have been synced. Also, will having just the collectors and no pipes on it lean out the fuel? Hoping to get this solved.

Front tab of tank cover removed:


Tank cover on snug, to be molded into the tank:





Me being silly:

 

Lookin cool man.
Another very unique XJ - looks like you and Low 1-5-0 will have the most unique of the maxm's on here for sure.

 

Maxim,
There is a PM for you regarding the mufflers in your box. I sent one the other day but I think I sent it to the wrong person.
Thanks
The Buffalo

 

I like the look, I'll be watching this thread!