New Newport
September 26, 2011, 6:45 pm
Filed under: Projects | Tags: , , , , ,

So the new bike is a Newport, a 78 Newport L to be exact. I know, not too exciting, but I only bought it because it is just about perfect. And black. Here it is:

I got it, a cover, a sweet 80s bubble helmet, full puch service manual, 1981 puch sales literature, grocery baskets, the original manual, and keys for the fork lock.

It was stored indoors, and was sold new just down the street from my house. The carb was filthy, but a quick cleaning and it was ready(ish) to go. A test ride found the carb was still clogged and not letting fuel into the bowl, so I swapped the body and boom, done. That and I had to patch the tube. The photos show how I got the bike, I’ve done zero cleaning and its still super sharp. I’m pretty excited about riding this one around stock for a bit.


dellorto SHA, dumb; running derbi, awesome

Just before the reno rally I spent a few days trying to get my thrown together derbi variant running. That should have been a relatively simple process figuring that the motor was running fine about a year ago in stock form. This clearly wasn’t the case. I did change a few things, primarily the top end, to a stock jug bored (long ago) to 60cc. I threw on the stock intake and carb and it ran rather well with decent pep and seemingly unlimited top speed. I went to ride it home (as I built it at Matt’s house way back in January) and it made it 1 float bowl in the stupid sha. I pedaled the rest of the way home.

So I tried cleaning the first carb, taking compressed air and carb cleaner to it twice. Same result, it died. So I tried a second 14.12 body with the same result. I asked Tom to borrow one, and this was even worse. It would kinda idle, but when reved it sounded like it was burping like there was a huge leak, but the seals were fine. So I tried cleaning that SHA again today to no avail (and why should anything change, the derbi has a spotless plastic tank).

Pissed off I finally decided to throw on Tom’s custom intake, his first from 3 or 4 years ago, 19mm funneled down to 14mm. My least favorite task on mopeds is running throttle cables, so I just pulled the throttle off ferbi which conveniently was already hooked to my dellorto phbg cap. I didn’t feel like routing the cable through the frame just yet, but I got it all bolted on and of course it fires right up and rides like a dream. It also fits in there super easy! Lesson learned: never use a SHA.

While working I also fixed the wiring which I kludged together back when I built the bike. Everything is much cleaner, the kill switch works as do the lights. So now the bike is almost done. It still needs fine tuning because all my dellorto jets are missing and my randomly picked phbg (84 main, 48 idle, needle ?) only works so well. The variator also needs some fine tuning to fully variate and reach higher RPMs. Despite it all, I think its a pretty cool bike that is fun to ride. With an air box it will keep the neighbors happy as well.

I’ve seen some stuff asking about switching derbi mags between bikes, and because all derbis have very subtle differences, the solution you come up with may be unique. This bike is older (PP) and had spoke wheels. Late bikes, or at least the Variant Sports, have brake hub tabs that are longer (they go lower towards the axle). I switched to a set of lowers from the variant sport so that the tab better held the revo hub, but the wheel couldn’t be properly centered. We then ground the hub down a bit so it all fit together. Fortunately rear wheels are easier as it seems just about all (but of course there are exceptions) have the same size tab for the hub regardless of the swingarm configuration. The biggest issue going to the revo mags is the cables as the ends on the newest variants are different. This is nothing some strong knarps cannot fix.

Finally a note if you are doing this: buy the fork lowers for whatever set of wheels you are switching to. All Derbi variants have the same fork uppers which allow all lowers to be 100% interchangeable. Tom had a spare set of revo mags and conviently forks, so he just swapped the lowers over and avoided ugly half-assed attempts at removing forks and grinding hubs.

’tis the season

hello fellow readers, sorry for the lack of updates the past few weeks. Well I am back from Hawaii (1st trip there, so much fun!), and that moped rally in reno is happening this weekend. There should be 6 of us superteens there, so get ready for some crazy fun times.

yesterday we had a little fix-it bbq at my house, and in typical fashion we didn’t get all that much done. Well that’s a lie, Bret got his maxi running after some silly wiring snafu, and Tom got his sweet new variant sport going but it is really really loud and I don’t think my neighbors were all that excited about it.

My green derbi is still being a turd, and after 2 different carburetors and some cleaning I think its time for a 3rd. Hopefully I can get one from Tom tonight, then I can throw that on with the sweet ninja pipe I am borrowing, then it should be able to rip for prolonged periods. When it was running (for exactly 1 float bowl before dying), it was fast. The bored out cylinder, ninja and clutch springs (+TJT) along with a 20t front and super small 32t rear make this bike quick off the line with a predicted top speed over 45 (maybe more downhills!). So yea, I’m excited but not in that its not running now. If I can’t get it dialed I’ll just bring my boring old magnum

Sean is building what may qualify as the ugliest maxi ever. He got an old newport frame out of Matt’s yard (rusty, faded, ugly), is reusing his grungy 5-stars with custom (crusty) white-walled vm100s, some faded old red freespirit forks, some rad bicycle bars, and some random pug shocks. Power wise its solid, with his old athena kit, 21 phbg (he was gonna build an intake, but why do more work when you can just trade parts with Tom?), and a really really chromed out biturbo. All in all practical, ugly, and probably structurally questionable.

Sorry, no photos were taken because we were working super hard, or maybe we were just drinking beer. I’m not sure, but the sausages sure were tasty. See ya’ll in reno.

mopeds return
May 21, 2011, 2:03 pm
Filed under: Uncategorized | Tags: , , ,

I got home and was really wanting to go ride around, and of course all my bikes except chappy are broken. So of course the best option was tearing chappy down (stole the master link and the head), and got the old magnum running (I also stole the pipe from my pinto, which runs- well ran, but has bent rims). Its the old polini, with a head gasket, selettra, mikuni and so on. It fired right up and ripped. I raced sean around town and it only got up to 340 so I think its fine. Unfortunately the clutch is on its way out. I knew the pads were chewed up, but I think the posts are now bent or something because sometimes it slips and works like a dream, and others it grabs way to fast and is a turd. Regardless, its nice being back on a fast bike, at least for a little while.

We also went to the archery range. You may remember me posting about this gem awhile back, and its really fun. We started with 18 arrows and only lost 4. Pretty good for a bunch of newbies. Check the rad pics.

Hey look, a moped!

May 17, 2011, 2:07 pm
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I win college. Its over. Now its time to really have some fun. Berkeley was awesome, now time for the world.

ranch park
February 17, 2010, 7:46 pm
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ranch park=animals:



midterms+no mopeds=sad. Enjoy the photos