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Bitsa build

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Bitsa build

Postby dickie » Tue Apr 23, 2019 7:32 pm

Got this frame cheapish so I'm going to build a Bitsa. Frame is 62 li150 chrome ring s3.

Image20190423_184109 by richardhenderson1968, on Flickr

Checked the frame main dimensions using sticky's and it seems okay, but floor struts are aal awa the shop....lump hammer sorted that.

Image20190423_185528 by richardhenderson1968, on Flickr

Image20190423_190655 by richardhenderson1968, on Flickr
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Re: Bitsa build

Postby wellerchap » Tue Apr 23, 2019 7:57 pm

I just hammered my GP struts back into place - I was surprised (pleasantly) how strong they felt under the hammer blows.
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Re: Bitsa build

Postby Toddy » Wed Apr 24, 2019 6:14 am

Got your Mojo back then buddy ;)
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Re: Bitsa build

Postby dickie » Wed Apr 24, 2019 10:58 am

Toddy wrote:Got your Mojo back then buddy ;)

Aye, once more into the fray. Slightly more daunting this time as I'll be doing it myself.
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Re: Bitsa build

Postby hullygully » Wed Apr 24, 2019 11:42 am

good luck with a bitsa build as you'll still need a mortgage for some chrome ring (only about 400,000 made) leggies :o
or you cut that ring off...……….. :?
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Re: Bitsa build

Postby dickie » Wed Apr 24, 2019 12:26 pm

hullygully wrote:good luck with a bitsa build as you'll still need a mortgage for some chrome ring (only about 400,000 made) leggies :o
or you cut that ring off...……….. :?

Got some in the loft :D

I've been slowly amassing parts that l felt were below the going rate for about 2 years.

But you're probably still right. It'll most likely cost more than buying a project; I just felt like building one from nothing. As the kids would say, "Just coz".

Just going to sling it together with some acf50 and use as a plaything for a couple of years. Then I'll do a full restoration on it....at least that's the current plan.
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Location: Tyne and Wear

Re: Bitsa build

Postby hullygully » Wed Apr 24, 2019 4:13 pm

go for it, @ least it'll be another Lammie on the road 8-)
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Re: Bitsa build

Postby dickie » Sun May 26, 2019 5:13 pm

All the holes on the end of the struts were wrecked so I welded in some scrap pieces and slotted and filed them. Not pretty but functional.
Image20190427_151009 by richardhenderson1968, on Flickr
Image20190427_161106 by richardhenderson1968, on Flickr

Some T section aluminium makes an excellent long straight edge. Pretty easy to manipulate the outriggers
Image20190424_185905 by richardhenderson1968, on Flickr

Before I bent them straight you can see an obvious gap.
Image20190424_190045 by richardhenderson1968, on Flickr

After...
Image20190424_190401 by richardhenderson1968, on Flickr

Struts weren't perfectly level either. Easy to sort
Image20190424_191229 by richardhenderson1968, on Flickr

Better
Image20190424_191425 by richardhenderson1968, on Flickr

I thought the panels fitted well, but something seemed amiss. Comparison with others said this dimension should be about 773mm. Mine was about 745 mm.
ImageLI3 frame by richardhenderson1968, on Flickr
You're kidding yourself if you think you can bend it this way. I just got a bit tired. My mate popped in while I was wasting my time and suggested jamming it under his car lift with some wood chocks, worked brilliant and I used the steering tube to manipulate the frame until it was perfect. Unfortunately I didn't get a picture.

Image20190425_194012 by richardhenderson1968, on Flickr

These individual tasks all had an impact on each other and I found that it was an iterative process, checking all dimensions and straight lines after any change but it's cock on now. So I've started putting it together. Acf50 rubbed into every part as I fit.

ImageLambretta LI150 bitsa by richardhenderson1968, on Flickr
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Re: Bitsa build

Postby dickie » Mon Jun 17, 2019 10:02 pm

Rebuilt the forks with bgm springs and scootopia dampers. Shocky added damper mounts to the links and I used my extremely limited welding skills to add top mounts to the forks.

Image2019-06-17_09-50-55 by richardhenderson1968, on Flickr

Motor in. You can see I've used a capacitor instead of a battery. I've gone for 10,000 microfarads this time as opposed to 22,000 I used last time. Should make it a little easier to start.

Image2019-06-17_09-36-19 by richardhenderson1968, on Flickr
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Re: Bitsa build

Postby dickie » Sun Jul 14, 2019 7:43 pm

New gearchange didn't fit well

Image20190623_091215 by richardhenderson1968, on Flickr

A while with some grinding paste and all was well

Image20190623_092608 by richardhenderson1968, on Flickr

I put quite a bit more thought than usual into cable routing. the throttle cable goes 'the wrong way' but has no tight bends. The clutch cable is a flat coil, multistranded one from chiselpseed and there is only one cable tie on the whole route of any cable. This has paid off, the clutch is really light but doesn't slip and the gear shift is effortless. I'm really pleased with it.

Image20190710_175733 by richardhenderson1968, on Flickr

One of those new-fangled rear brake cables. Expensive but good.

ImageLambretta qr2 rear brake cable by richardhenderson1968, on Flickr

I had the choice of 2 back plates for the front, but was happy with niether. One has the thin strengthener and the other is notched where the peg locates; I'd taken this one of another bike because it knocked, so it wouuld be pretty stupid to fit to a new bike. Why do we hang on to crap?

Image2019-06-22_10-05-46 by richardhenderson1968, on Flickr

Image2019-06-22_10-05-29 by richardhenderson1968, on Flickr

Reverse pull drum. Works nicely

Image20190629_162805 by richardhenderson1968, on Flickr

The lights and horn didn't work; I wonder why?

Image20190701_213343 by richardhenderson1968, on Flickr

I don't know where I got this nut from unfortunately, but when I torqued it up it did this!

Image2019-07-14_07-34-05 by richardhenderson1968, on Flickr

Anyway, I finished it on Friday and took it to the WWSC blackadder rally.

ImageL by richardhenderson1968, on Flickr

ImageL by richardhenderson1968, on Flickr

ImageL by richardhenderson1968, on Flickr

ImageL by richardhenderson1968, on Flickr

I love this bike, but unfortunately it died on the way home. See "small block home tune" for the reason. :(
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Re: Bitsa build

Postby nickw » Sun Jul 14, 2019 7:59 pm

I think you've done a cracking job with that frame/scooter. The frame straightening was brilliant, well done.
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