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Vespa Enduro

Posted: Sat Sep 08, 2012 2:35 am
by guygrrr
Greetings lads. I've recently completed a raffle blke for a small rally I helped put together here, state side. The rally was held on a friend's farm and the bike was built to handle some serious off road shenanigans. Otherwise the breif required that it be cheap to put together, ridiculous, and preform as addvertised.

This is what was started with
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It was an early 60's Allstate that should have been left alone, but the price was right.

The engine is nothing special.
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This is after it had been sand blasted. It was living for some time under water and as such, only half the case proved serviceable. The clutch side, while not pretty, worked just fine. Beside being under water the flywheel side crank bearing had been pressed through the case. The damage had been welded up but we can do better. ImageImage

Re: Vespa Enduro

Posted: Sat Sep 08, 2012 3:14 am
by guygrrr
The body work.
My buddy got to work sorting out the frame and floorboards.
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because the bike is expected to live hard off roading, the frame gets strengthened.
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The look of things to come
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The tail
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Floor gets double walled
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Re: Vespa Enduro

Posted: Sat Sep 08, 2012 12:27 pm
by RICSPEED
keep us updated :D

Re: Vespa Enduro

Posted: Sat Sep 08, 2012 7:27 pm
by Richjak
looking good mate keep the photos coming in cheers

Re: Vespa Enduro

Posted: Sun Sep 09, 2012 5:19 am
by guygrrr
The headlight brace supports twin 55 watt units scavenged off a Land Rover.
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This picture shows the bike mocked up without the center brace and tank. The fork is a used, chrome, P200 item (thanks Gene!), and the tires are 3.5x 10 Shinko knobbies.
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Cases were sent to the machinist. The gasket face was milled down to give a proper sealing surface for a Malossi 166 cylinder. JB weld was used add material were the port walls would get thin.
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I use a large permanent marker and scribe to lay out were to cut.
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You can just see at the top of the port, the grey of the JB weld.
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Re: Vespa Enduro

Posted: Sun Sep 09, 2012 5:58 am
by guygrrr
To feed the lights I used a stator and flywheel off an LML.
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A long stroke, cut, P200 crank with the clutch side lip turned down was used with a 62mm Suzuki piston. This I fettled to mimic the original Malossi piston. The n.o.s. Suzuki piston is a good $50 cheaper than the original so I think it's worth the bother.
Clutch side seal and bearing. I put a smear of Loctite bearing retainer on the seal and bearing to keep them in place as their positions are reversed in these cases to accommodate the P series crank.
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A combination of long stroke, long rod, short Mallossi cylinder, faced cases and a piston with a non stock compression height gives about a -7mm deck height.
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Re: Vespa Enduro

Posted: Sun Sep 09, 2012 8:01 am
by warts
A sort of Vespkhus or Ruckspa then?

Re: Vespa Enduro

Posted: Sun Sep 09, 2012 7:15 pm
by Craig H
Lovin this cant wait to see it finished. keep the photos coming ;)

Re: Vespa Enduro

Posted: Sun Sep 09, 2012 10:52 pm
by guygrrr
warts wrote:A sort of Vespkhus or Ruckspa then?
i prefer a Vespavarna, but i get where yr coming from.

Re: Vespa Enduro

Posted: Mon Sep 10, 2012 5:50 am
by guygrrr
Keeping on.
The center tank used to live on a '78 Yamaha GT80.
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A healthy coating of pickup truck bed liner was applied to the under side and what-not. While what's left of the original paint was given a coat of clear to preserve the "patina"
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I wasn't happy with how the Malossi head would sit on the cylinder, so I got creative. I used 4 of the hollow Vespa carb bolts that I tapped clear through with a 7mm tap. The stud holes in the head were drilled out to accommodate the bolts and hey, presto! Now the head stays put with the bonus of it being neigh on impossible to strip out these head bolts.
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