Project Frankenbike

[.RJ]

The pilot jets are clogged.

I'm assuming you're doing this with the carbs on the bike (taking the bowls off). See if you can find a picture of your carbs with the different jets identified - you may have 2 different "pilot" jets (idle jet and pilot jet), I'm not sure whats in those bikes. But you will need to take the smaller jets and the emulsion tube (thats what the main jet threads into, I'm assuming its removeable - if its not, or its pressed in then leave it for now) out and soak them in a 50/50 simple green/hot water mix for a while, and then blow them out with compressed air (if you have it) or some kind of wire to clear the debris out. Hold them up to a light and make sure they're clear.

Take pictures and post 'em here if you get stuck....

[SlimKlim]

The pilot jets are clogged.

I'm assuming you're doing this with the carbs on the bike (taking the bowls off). See if you can find a picture of your carbs with the different jets identified - you may have 2 different "pilot" jets (idle jet and pilot jet), I'm not sure whats in those bikes. But you will need to take the smaller jets and the emulsion tube (thats what the main jet threads into, I'm assuming its removeable - if its not, or its pressed in then leave it for now) out and soak them in a 50/50 simple green/hot water mix for a while, and then blow them out with compressed air (if you have it) or some kind of wire to clear the debris out. Hold them up to a light and make sure they're clear.

Take pictures and post 'em here if you get stuck....

This makes me brainfuzzled, carbs are so weird. I got carb cleaner to flow freely through the emulsion tube at least, but that might not have been good enough. I dont know which are the pilot jets and I certainly didnt remove them, so I probably didn't clean them that well.

I'll take it back out tomorrow and try to figure it out/find a diagram/post pictures and get them cleaned properly. Is that a pretty sure solution for a "no-quick-rev" issue? You seem pretty sure.

Thanks for the help! (Sidenote: I want to touch your CB750 sometime, preferably sooner than later)

[.RJ]

I would be very surprised if that wasnt it - they are the first things to clog when they sit with fuel for a long time - they're the smallest jets usually.

Carbs deliver fuel on throttle position and vacuum, and not revs or power. Idle/Pilot jets control the fuel in the transition off throttle to about 1/4 throttle (along with the air bleeds, but thats more for tuning than getting it run right) so thats what you are running into (most likely) - off idle those jets are clogged up and its not getting the right amount of fuel.

[.RJ]

Oh, and drain/fill the gas tank too, make sure there isnt anything floating in there (it should be ok, modern gas tanks dont rust up like the old stuff)

[SlimKlim]

Spiffy, I'll research and fiddle with it tomorrow to see if I can get them cleaned out tomorrow along with a shiny new tank of gas and some spark plugs.

If I get it running right tomorrow, I'll move onto the brakes this weekend. Then next week I'll clean it, install the kickstand safety switch and shim the seat. Then, after I get paid next Thursday I'll insure the thing and buy my gear and start riding her. 8)

[SlimKlim]

Took it apart, re-shimmed the slides where my dumbass left one off yesterday, my uncle dropped by and helped me check them out. We set the air-fuel screws, and they were way out of whack with each other.

I also took the tank into work with me today, let the nasty old gas drain, dropped it ( :twisted: now I'm repainting it sooner than I thought, it will be my "hey, you rode for a week and didn't kill yourself present), then filled it with shiny new mid-grade.

Cranked it up and let it warm up, then started revving it again and it WORKS! WOOHOOO! :bootyshake: It could probably be fine tuned a little bit but it certainly gets the job done.

Now it goes, time to focus on making it stop. He just used a capped line as a fluid reservoir in the rear, and I think I'll put an actual reservoir on it. I need some line for the front that runs from the reservoir to the handle that's made to hold brake fluid, the plastic one is all swollen up. Then I need to bleed the front and rear after I do that, and she ought to stop alright.

[.RJ]

Pilot jets ok?

Capped line on the rear brake is fine... thats what I always did on my track bikes.

[SlimKlim]

Yeah but that little rubber diaphragm in there has gone to do something to help pull fluid up after you let off the lever right? That's how I understand them anyway. I ordered a master cylinder for $15 on ebay before I checked this thread again, which I don't want, but it has the reservoir and hose attached to it, which I do want, so I'll take those off and sell the master cylinder for $15, on ebay.

Yeah, the pilot jets were both clear, I think it had a lot to do with that crappy gas too.

[.RJ]

No, not really. My street/trackbikes always had aftermarket footpegs and they never have any provision for the factory reservoirs so... tube and a cap.

[BLINGMW]

Yeah but that little rubber diaphragm in there has gone to do something to help pull fluid up after you let off the lever right? That's how I understand them anyway.

nah, sounds like some bunk info to me. Many race master cyl reservoirs don't have this gasket. I think it's there just to help seal, or prevent debris from getting in there when open, I don't know. The fluid gets pushed back up through the system by the pads retracting from the rotor.

Glad to hear it's running well, that's awesome :thumbup: Call me if you want to go for a ride!

[SlimKlim]

Well, I already ordered the part and it just makes me feel better. Not to mention, that hose that's currently capped off is vinyl, which my experience with the front line has demonstrated is a big no-no. So I'll get the stock line meant to deal with this fluid as well.

I got the rear brake line from the guy that made it and installed it, but didn't bleed it yet. I'm not going to ride it at all this week so I might as well wait until the reservoir comes in to bleed it.

I'm about to do some serious damage to my checking account, read how here:

The front brake reservoir to the master cylinder is run with vinyl line, which the brake fluid has swollen and is sweating through, and (hopefully) the reason for my seriously reduced brake pressure. I ordering the $11 (!!!) hose for a GSX that serves the same purpose, and I'm assuming its the same diameter and a similar length. Brake fluid will eat up fuel hose and vinyl and pretty much anything else you throw at it, so I might as well quit screwing around with it and get something OEM-ish.

The rear brake light is bright, but super skinny. I also like its design, so I decided to order another one just like it, splice it into the wiring and mount it right below it, and rock out with my ass lit up. $35 Also, to pass inspection my tag needs to be lit up, the cheapskate in me was about to wire up some panel mount LEDs and forget about it, but in a never-knew-you-needed-them-till-right-now sort of way, I saw some tag bolts with lights built in, which are so ingeniously corny I have to have them, $17.

Newenough.com has A First Gear Mesh-Tex Jacket in my size for $59 on clearance, off from $149, so happening. Then a pair of AGV Mayhem gloves for $40.

I think thats all I'm buying for right now. I'll get paid on Thursday, insure it, roll into the DMV on friday, title and register it, and then (assuming I've gotten the parts and installed them, take it out after work and road test it, and make sure it does in fact, you know, stop and stuff.

[.RJ]

OEM or brembo line is the only way to go for brake fluid. Good work.

[SlimKlim]

Yeah, I have all braided steel for the actual lines, but the low pressure stuff still needs to be able to hold up to the fluid.

Help me pick a place to mount my license plate.



I have a bracket that mounts up between the turn signals, but with the tag on it I'm afraid the rear wheel would rub it under full compression.

I'm thinking of either making a ghetto vertical mount off the bracket for the chain guard, or somehow fashioning a way to hold it right at the top of the splash guard, where you see that gap between the splash guard and the seat, but I'm not entirely sure how I'd pull that off, or if it would be legal.

I'm liking that last option, a simple piece of aluminum between the frame rails, fastened on each end somehow would provide a place to mount it.

[SlimKlim]

Also, help me pick a paint scheme. The cream white stays. Thats not negotiable, I will entertain some sort of accent color, thinking a retro two tone with a warm grey. Or maybe some dual retro style racing stripes down the center of the tank, eh?

Photochop.

[goodWIN]

Joseph!!!
You never told me you finally got a bike!!! I don't ever look at this folder/forum topic thing. I didn't even know it existed,
Anyway Jesus that was fast! Hope your biking classes went well!!!

[Kaan]

just mount your plate under the light. i'm a fatty and wouldnt compress your suspension that much.

[SlimKlim]

I think I forgot to mention I'm adding another brake light, that one is a little hard to see from higher angles, so It would drop it down another inch, leaving me with an inch or so of clearance.

I went ahead and made a bracket that attches to the left side swing arm to vertically mount the plate, and I can run the wiring for the tag bolt lights up the chain guard.

My lights shipped, now I just need my reservoir, lines, and gear to ship. Prefferably now, dammit.

[Kaan]

move it out toward the back of the seat to get more clearance

[SlimKlim]

That's where my frame stops! Rofl, this thing is chopped, one seater status.

Sent from my Droid using Tapatalk

[Kaan]

there isnt a single rule that says your brake light and plate have to be on the frame