devin brought down a bunch of prototype pipes this weekend. one of them was designed specifically for the puch polini cylinder and we used gary busey to test it. my current setup was a 15 bing, puch hero cdi, polini and modified dmp (estoril) pipe. it gps’d today at 50.0 mph. insert motion left’s brand new pipe and a slight re-gear and i got this…
this pipe is amazing. still have a couple more things i’m going to do to try and hit 60 on the 15 bing before i start playing with other carbs. 2 PETAL 4LYFE DAWG. i’ll do a more descriptive write up with photos after thanksgiving. not sure when these will go into full production, but i’d contact him (mlmopeds@hotmail.com) if you want one.
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Tags: e50, motion left, polini, puch, puch polini
angle grind, weld and repeat
is the formula for progress on the derbi monster, and lots was made tonight.
Filed under: derbi | 2 Comments
Tags: derbi, derbi monster, race bike
sneak peak: DERBI MONSTER
the beginning…
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Tags: derbi monster, race bike
some porting
while my derbi motor was apart i figured i’d tinker around with some porting. i’d like to race this motor in the spring/summer, so i want to see what this kit is capable of.
here’s what i planned for the cylinder (65cc pyramid reed metrakit).
i ended up just raising the exhaust 2mm and widening each side 2mm. i want to raise the transfers 1.5mm, but couldn’t get in there with a dremel. it might have to be hand filed. anyone have porting thoughts on that? what do you guys use to get at the innards of a cylinder?
quick bit of porting advice: these dremel tungsten carbide bits turn cast iron into butter.
they’re a bit pricey ($8+), but a totally worth it. having both the straight cylinder and the tapered one is really nice. i clean up after those with a sanding drum. it’s a sweet 1, 2, 3 cast iron combo.
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Tags: derbi, metrakit, porting, race bike
in the transition to a new, much more amazing, frame for the derbi, it was time to case match and do some porting. i didn’t feel like splitting the cases and doing a full rebuild. to avoid aluminum shavings all up in my crank and bearings i used some play dough and plastic wrap. obvserve…
step 1: use the new base gasket to mark the material you want to take away.
step 2: cut a piece of plastic wrap to fit inside the crankcase sleeve. poke a hole for the conrod and slide it in. the plastic wrap makes it easy to pull all the play dough out in one swoop.
step 3: play dough time! mash it in and make sure there aren’t any cracks.
step 4. grind away. a huge part of successful case matching is making sure you have the right bits. my favorite for aluminum are dremel’s high speed cutting bits. i like to use the largest cylinder one they make (aluminum melts at it’s hands), and a smaller cone shaped one to smooth in the rounded bits.
then i clean up and smooth out with a cone shaped stone bit. finished product!
step 5: clean up time. i used some of the left over play dough to dab at the aluminum shavings so i didn’t have a bunch of floating chunks lying around when i took the play dough out. after that just dig around the edges and grab ahold of the plastic wrap and pull everything out. i did a quick spray of brake parts cleaner just to be sure i got everything out. annnd ship shape!
Filed under: derbi | 4 Comments
Tags: case matching, derbi, metrakit, pyramid reed, race bike
SEIZETOWN and a new pipe
in a partial trade for the tsm, ben from switcHANDsignal sent me a new derbi metrakit pipe. i had a feeling the 75cc zen was holding me back, and HOLY CRAP was i right. the bike was entirely transformed. easy wheelie torque and a ton more top end (8+ mph). the zen pipe was just waaay too big for the 65cc kit. lesson learned. here are some comparison photos.
zen on top, metrakit on bottom. smaller/longer header for this setup = MOAR POWAR
EXTREME LENGTH
so it also turns out i was a bit lean running the new pipe. i was riding over to nates to weld up an exhaust mount (more on that later) and was taking it easy…but couldn’t resist the power and opened it up. sure enough, after about 30 seconds it locked up into a 45′ skid. i coasted it to nates garage and took the head off to find this.
what’s with the exhaust port arrow pointing sideways? anyone know?
little/no damage! there was no feelable damage on the cylinder wall and the rings were fine. i’ve never seized a bike before this kit, and i’ve gotten off easy with this one so far. at nates i upjetted 5 sizes, added a gnarly pitbike air filter, and took off for a cold ride with some bandits down the ohio river. turns out i didn’t upjet enough though. i was cruising along and nate passed me on his 50+ morini powered pacer, so i opened it up to pass him back. right after i pulled by him i locked up into another, more terrifying seize skid that had my rear tire swerving all over and smoking. i let it cool down again for a couple minutes and it fired right back up fine. i’ve got to upjet a bit more before bombourbon, but other than that this bike is good to go! finally feeling the derbi power and loving it.
Filed under: bandits, derbi | 5 Comments
Tags: bombourbon, derbi, metrakit, seize
nate’s tri-ped mocar
nate made a huge craigslist score last week. he chased down a cryptic post an hour away looking for what looked to be a morini powered trike. when he got there he was surprise by something WAY more badass.
it’s a minirelli v1 powered tri-ped. supposedly only 500 ever made. it’s a LOT of fun to ride, especially with side by side passengers. now i know how much fun phil and fellow blogeeto fleeters have been having riding side by side (by side) on his hobbit trike. too bad these bikes live on opposite coasts, a three man trike race would be hilarious.
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Tags: minarelli, mocar, nate bandit, tri-ped, trike
zack bandit’s moped blog
you may know him from such fame as “MY MOPED’S ON FIRE!”, or as the owner of the charelli or if you’re lucky, as zombie zack. well zack has a fancy new moped blog about his garelli monza gt: http://www.zackolson.net/ check it out, there’s some cool garelli tech happening over there.
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Tags: blog, garelli, monza gt, zack bandit, zombie zack
on the chopping block: the tsm
i’ve decided to sell the tsm. i haven’t had it that long, but i’ve realized i have an abundance of moped projects and lack of cash/time. combine that with the opportunity to get an awesome motorcycle (yamaha 350 r5) and something had to give. the tsm was going to be the biggest money pit i have, and is also the bike i can get the most for. so it makes the most sense to let go. plans of a sick franken super tsm have to be laid to rest, but it’s for the best. i’m going to post it on moped army, but let me know if you’re interested.
http://www.flickr.com/photos/gabeberghuis/3815381656/in/set-72157622021133400/
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bourbon banditos
no tuning in this post, instead some pictures from our weds night ride. there was a decent turn out with 20+ people, with special guest QUATTO!
maggie leading the ride downtown
markryan, sue, nate and maggie right before blast off
and rev dubs (aka jeremy bandit) SICK magnum recently coverted to mini. there is a ton of detail and perfection poured into this bike. he’s truely a whiz with aesthetics. and it’s a ripper to boot.
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Tags: bourbon bandits, louisville, magnum, mini magnum
Flickr Photos
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