mopeds


polini cup round one

I’m home, tired and don’t want to study, so lets talk mopeds some more!

Me and some superteens went out to atwater for some good old fashioned fun, because what could be better than mopeds, racing, hanging out, and super target, all 2 hours away from anywhere you’d actually go if you were a sane being. Of course we got there late, and of course the mopeds were on the track at that percise moment, so I missed practice. I wrongfully assumed it was like last year with 4 practices, but nope, this year it was 3, so I was down to 2. I was a little skeptical of the magnum (derbi?) just because I knew I’d be abusing the za, so I “tuned” it up (set the timing and “jetted” it, meaning it was good to go!), then got out there. The n8p was pretty dismal with my gearing choice (18×36) in that it would downshift on the hairpin and maybe the big wrap-a-round left, but otherwise I’d be in 2nd with no power through the turns. Not good, but once it hit on the straight, it went pretty fast, seat of the pants maybe 60, but probably more like 55 or less cause I couldn’t top it.


Rafter was really cool and let me throw a spare destroyer on there for the next one, and boy, what a pipe! I’d always kind of just dismissed destroyer power as a fad (really I’m just too cheap to lay down the scrilla), but it holds its own. Similar in its hit to the circuit, but later, and if you tempt the za long enough, it’ll pull through the band and shift right back into it. Fun stuff!

As many are likely aware, there were some rad builds this winter (or last couple weeks), and all were quite impressive. Jimmy and Tony worked together to build a pair of identical awesome flat-reeders. Each is stroked out, ported all nutty like, tuned pretty well, lightened here, strengthened there, and a custom pipe finishes it all off. This things are next level, and both definately have the potential to deliver some quick laps.


Tommy built a vogue, but got the massive mikitech cases and clutch pulley, is running the derbi metra, a 28mm flatslide among other insanity. Its fast, and when its fully tuned and ready, it will be head to head, power wise, the full length of the track.

Dean built the VX4, the most unique moped ever. It has a pinto frame, hobbit cases, derbi cylinder, moby crank, moby er3, derbi rear pulley, hobbit front variator and clutch, hobbit rear pulley and wheel, HPI, hydro ebrs, custom subframe, in-frame gas tank, and probably many other things I forgot. Regardless, its got the potential to eat every moped. The 2 pulley sets variate sequentially, the rear after the front, so tuning is a bit tricky. Unfortunately the bike sustained some damage in the 2nd practice, so he was out for sunday.


With so many (should have been more) amazing bikes, the racing was amazing to watch. Jimmy and Tommy are so competitive, and both go all out. The derbi’s would take the straights but tommy would always be there in the turns and made passes then was passed and so on, and some how Pete got up front on Tony’s monster. Rufus was out there on his bravo as well, not quite as fast, but he gets quicker every lap, so he’ll be exciting to watch.


This beast was 62ccs, something like 6 or 8 hp. Nuts!

I managed to win the e50 polini class as I violated every rule in the book. CDI, disk brakes, 24mm carb, za50, all prohibited, all present. I managed to score a sweet 2 foot trophy and some points. Kick ass! Best of all the bike survived. My fastest lap was 47.something, not terrible for the bike (last year I think I got down to 43 on tom’s derbi, this time the fastest in open was around a 42, and last year the fastest fast was about a 40 by jeff) And for those wanting to race, top tanks are worth their weight in gold. So nice to have something to hang onto. For Gabe, I forgot to check my main in the flatslide, but its either a 165, 180 or 205. Sorry buddy!

So I’m pretty excited for later races, and I really hope more people head out. I’ll be honest, its pretty lame no one showed up. Obviously we all have things going on and whatnot, but come on. We have restrictive rules created for a race with 2 people showing up to ride? That’s exactly the point I guess. Even if you aren’t building something crazy to battle the fast dudes, get out there. Track time is a lot of fun. I’m bummed I have to miss the next one, but I am more excited for June.

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busy day
March 19, 2010, 11:08 pm
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So the weather is just about perfect right now. Sunny with highs in the mid-70s, and everything blooming and green. No dead grass or fires yet. Matt and I decided to hit up the archery range for a few hours and hit some targets. We aren’t that good, but whatever, its still fun



The hanging targets are the most fun.

I pretty much got the magnum done. Its not quite tuned yet, but the seat is one, tank secure, HPI on and kind-of timed, and mikuni and intake done.

Everything went pretty well. I just used my derbi intake, but drilled new holes so if came off to the side for the mikuni. I think this was the first time all my holes lined up the first time. Seat brackets took a few, but the freespirit seats are actually really close to mounting up on magnums. I bent the rear bolts out just a tad and built quick brackets for the front. The derbi tank is a tad wider than a magnum tank, so I built up the rubber mounts so it didn’t move around. I know the lines aren’t perfect, but I’d hate to rip up my perfect seat or dent/scrape my ltd tank, so it will have to do. The riding position is actually quite nice. The red bike theme continues

While working Bro and Matt went up the hill, Matt to ride his bike down (drivetrain missing), and Bro to longboard. This hill is awesome when everything works right, but speed wobbles are not good. I lost my brake once coming down and crashed into the bushes. This time Bro’s hand and elbow took the brunt of it.

Putting the HPI together was quick and easy, just the first time I didn’t tighten the nut all the way down so the flywheel came loose on the first test run. I’ve got it set just about 2mm BTDC and it seems pretty powerful. I’m geared 18×36 and it gets up to speed a bit quicker than it did with treats CDI and the phbg. Top speed somewhere close or at 60. With some tuning and shorter gearing it should be pretty good for the track. I really prefer top tanks over step-throughs when it comes to riding as its so nice to have something to hold onto with your legs. So while this thing will be nowhere near a contender, it should be a lot of fun.


Finished the night off with some tri-tip, guacamole and jalapenos. A busy, but very fun day. This kind of day makes me very excited for summer.

Whistler in the morning. I’m bringing the mini-camera so I’ll take so pictures and update (sorry for the crappy pictures, this camera sucks in low light).



whats going on.
November 23, 2009, 12:13 am
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I’ve got a lot on the plate for this week.


I got my magnum running yesterday. The petcock started leaking just before the ride today, so I had to make a an o-ring out of fuel line on the spot. Its running super solid, I always forget how this moped is the best moped ever.


cleaning and sealing the ltd tank this week, finally.



this is the ugliest pipe ever. Originally a tomos estoril, its survived a lot. The pipe was derestricted, the silencer has fallen off numerous times, the header has snapped a few times, etc. Somehow it still works fine, and take my brother’s tomos to crazy speeds.


broken polini cup derbi motor.


most fun bike ever. Currently disabled.


need a stock cylinder or some old tires?



getting vespino ready to ship out to kentucky. fits in the box, just gotta pack it properly now.



roundup

ok, first midterm done, so I’ve got some time. So yes, as stated the polini cup was awesome. I should have studied all weekend, but instead I went to atwater and tried to race.

Cuperteens broken race team: the story of the year. (Check out my rad c5 in the background. Thanks Colby!)

It was a tough morning. I got my bike all together last week and was basically hoping it would survive the races. I went out in qualifying and my bike was a turd. It wouldn’t rev through the pipe on the straight, so I was just cruising. I tried to make a few adjustments before twist and go qualifying, but it just got worse, with my bike even slower on the straight and the variator binding and making for horrid power. So after re-timing the bike, down jetting, replacing the rear pulley, switched back to a stock spring, changing the variator weights, and re-adjusting tire pressure it was time for the moped race.

I didn’t ride very well, I think I got 6th in the first moped race. I somehow managed to get out in front of everyone but tommy and jeff, but poor lines through the twisties quickly yielded lost spots to first jimmy, then elliot (on the e5, so sick!), then ultimately terry dean when I went super wide on the hairpin. I then proceded to suck even more, almost falling at least twice (2 wheel drifts!), the actually having a decent rematch vs. Latebird Nik. Unfortunately he fell on the last lap but was ok. I managed to get then 3rd or 4th in twist and go (tommy broke), but my bike was super janky.

I then proceeded to replace my shocks (tom lent everything to me, a real trooper after his crank twisted up saturday), but missed the dash for cash. I had WestCoast Ben (or Ben Jammin) ride his sick derbi, but it was a bit out of tune. Terry Dean ripped it up out there and won like $120. So awesome!

I got back out there for moped 2, but on after the 1st lap I had some crazy vibrations and turns out my crank twisted just like tom’s. Bummer! I guess this was the 10th crank i’ve destroyed, dunno. So someone had to get out there for twist and go, and luckily the mosquito bus brought mr. travis and his rad hobbit, so he put on the boots and ripped it up out there, getting 4th in the most entertaining race ever (with tommy on the jog).

So yea, racing was awesome. Jeff managed to hang on to the win in mopeds, with elliot on the e5 just narrowly behind (with another lap or 2, who knows!). He took home the metro rider for 1st overall on the season. Jimmy was second and got a rad helmet, which he earned after nearly knocking himself out in the dash for cash, and tommy rounded up the podium in 3rd.

The puch polini racing was also epic. The first race had Round, Jimmy and Alan all neck and neck right up to the last lap. Alan managed to pass jimmy on the last turn of the last lap and took it home. The 2nd race was slightly less intense because alan fell, but still awesome with jimmy and round battling hard. I’m super excited about this class next season.

Somehow I managed to get 3rd overall in twist and go for the season, so I won a big box full of oil and cleaners, some posters, and a sweet key chain! Tommy got 2nd and got some rad racing slicks for his pitbike! (he has one, right?) Mr. Scooter Rumple got 1st. We will get him next year.

Ok, so thats it. The Polini Cup was rad. Polini USA did an amazing job all year making this happen. Big thanks to them, 1977Mopeds, and everyone else who made racing this year a reality. Atwater has been great, and I’m super stoked about next season. More parties (that bus better be back down), more racing, and more fun overall. I’ll post some pictures of my new builds as they happen over the winter.



mopeds :(
October 1, 2009, 3:38 am
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sometimes i hate mopeds because there are too many awesome ones. I get too attached, then I don’t have room/money for other ones. Example. My current bikes are: Chappy, LTD, Derbi Racer, Swinger2, MagnumX, and Vespino. I can never sell Chappy, LTD, or MagnumX. I’m also building a freespirit for the polini cup polini class. But then today I found another bike I really want: Derbi Diablo. So yea, something has to go. I’m guessing the two to leave will be the swinger and vespino but that sucks. So yea, I’m bummed. I want it all but that doesn’t work. Damn conundrum.



destroyer
September 28, 2009, 12:33 am
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For some reason everyone likes to think we blow up an obscene number of bikes. This is false. In 2 years of many fast kitted bikes, the cuperteens as a whole have only killed two cylinders, a 50 tccd (still a mystery, looks like a broken circlip and all associate carnage), and a 75cc derbi metrakit (4 corner seize. Matt was hungover, and fuel line slightly pinched).

That said, I’ve blown 5 pistons. My derbi has done 60% of the damage.

3 were in my Gilardoni on my derbi (Matt did one of them). The cylinder is a bit rough, but still works fine. The first one was in LA. I was flying down La Tuna Canyon, my bike was backfiring, piston was hitting the head, and more, and it locked up at about 50. Lost the lower ring, but it ran the rest of the day, and the first practice day of the polini cup. The next one was the first race at polini cup, not sure, I think jetting was off. The last one was the 3rd polini cup. I believe this was due to poor jetting (fuck OKO’s). No biggie.


One was a polini piston in portland; the ring got hot, snagged the exhaust port, and managed to destroy the piston while doing zero damage to the polini. This happened due to an exhaust leak because I was chasing terry dean down the freeway at 62 mph, lost the rear bolt, then ghetto rigged some safety wire to hold the pipe on which subsequently didn’t work, I got an exhaust leak, and yea, broke a ring.

The last one is an elusive korado piston. I’m not exactly sure how this happened, but it developed some ring noise, started acting funny, then finally died right by tom’s house. Of course this happened the first day I ever rode to work, so it was a bummer.

But yea, thats pretty much it. We’ve had a handful of soft seizes, but nothing catastrophic. Tom’s seized a derbi crank at the races (HOT!), and Matt exploded a big end bearing on a top crank on his gila monstermagnum (paced at 68-69mph at sacramento).

So yep, fast bikes but relatively little destruction. Pretty sweet. That said, this is just about ready. I’ll give some specs later. Its quick, but not insane. If anyone going to atwater this weekend has mikuni jets between 205-220, I’ll be your bff.:



derbi, attempt 4
August 20, 2009, 2:56 am
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racer renditions:
1-gila, 24 oko, metra bendy pipe. Seized in the canyon in LA, got it running, matt raced it, seized it again.
2-gila, 24 mikuni, metra bendy. seized by matt again.
3-gila, 24 oko, puch cdi, zen. seized racing
4-current build.

so the previous builds all had their own issues. I thought number three was solid, and it ran well, but super noob jetting made me seize it. So yea, now its being done better, maybe not perfect, but better no less.

I wanted to run a metra 80, but those pistons are not available, so I’m going to run my polini instead. New intake, ported the exhaust and transfers a bit more, cleaned up the case matching, milled stock head ghetto polished, and its going to run a 24 mikuni. I got the selettra cdi just cause, so we’ll see what that does. The zen has been re-angled too many times, and it needs to be done once more. Hopefully everything together will equal a sweet blaster. I need to get a piston tomorrow, fix the pipe, and it should basically be good to go after double checking the timing. I don’t know if it will be crazy fast, I doubt it, but it should run well. I just want a shit ton of midrange like tom’s bike so its quick through the turns. I’d like to change clutch springs too, but we’ll see about that later. Paired with amazing brakes, I should be able to get some decent lap times.


check out these sweet bikes: