Uh, yeah. Time for a new one. Get one of the two-piece racing clutches; they're much better. Back when I ran, I used all Robinson Racing stuff. That thing is WAY filthy, too. Hose it down with denatured alcohol and check everything over good. If it's stuck in second, though, that's a tranny issue, so you may need to dissassemble, clean, rebuild it and adjust it as well.
A couple years back, I had a fully modded (100% aftermnarket Al and CF) HPI Racer2 with every option you could get and a 1.15HP motor (I forget the name now, but it was the biggest, baddest motor available it the time) that I used to race regularly at the local track. I loved that car, spent tons of time working on it and must have had $2k in the thing. Anyway, track got flooded during Alison and ruined the embedded timing system. They never fixed it, eventually tore the track out and sold that land adjacent to the hobby shop for other stores to go in. With nowhere to run, I ended up selling the car (you think our cars have bad depreciation!). I've got some pics of it on my computer at home; if I get a chance, I'll throw a few up here tonight.
Just kidding. It's called a boost bottle and is connected to a tap in the side of the carb via that stretch of fuel tubing. I forget all of the technical particulars, but it's supposed to be an aid in high HP engines by giving some kind of pressure relief/regulation of air below the carb during hard on/off throttle usage, thereby making the engine smoother and more responsive. Some larger 1/8 scale engines come with a "boost chamber" built into the back plate of the engine itself. It's functionality was met by a lot of people the same way people look at grounding kits around here, but it sure looked cool.
-Onkyo TX-DS797 6.1 ch DD-EX/DTS-ES tuner/amp 100W/ch
-Infiniti Interlude series speakers all around
-IL60 fronts (massive 3-ways with a 12" sub built into the side of each one, each with it's own dedicated 500W amp).
-IL30 right, left and center rears
-the bigger of the two IL series center (forget it's designation)
Total system power: 1600 watts. It rattles the windows and knocks pictures off the walls pretty effeciently. PS2 games rock on this baby as well (Mmmm... Gran Turismo 3 on 65" and surround sound).
I was seriously lusting after a Sepent Veteq before I got out of the hobby. They had just come out then and were some serious machinery. 1/8 scale on-road of that caliber takes you to a whole new price bracket, though. 'Spensive stuff.
Heh, heh. Modding those little buggers is more addictive than a real car (as if you couldn't tell from my pics). Mine would do near 70 down our back straight. I couldn't even run it in a parking lot or the street without completely re-doing my suspension settings. I had the thing dialed in just a few mm off the ground; one pebble, and you're in for trouble. Those tires were just for display as well; I raced on soft compound foams.
If I were to get something now, I'd get one of HPI's trucks for some off-road fun.