Engine Parts List

This will likely be my next purchase. Here is what I need I need to buy to rebuild my engine:

$0 -- Gasket Set - TV 175 Ser 3 (bought already at $22)
$2 -- Flange - Rear Hub Seal Holding Plate
$2 -- Engine Rubber Bumpstop
$1 -- Washer - Engine Rubber Bumpstop
$12 -- Qty. 2 Cone Engine Bolt - TV
$1 -- Distance Nut Spacing Cylinder Cover 8mmx30
$2 -- Kickstart Rubber Bumpstop
$1 -- Deep Nut - 8mm for Exhaust/Engine Case
$1 -- Qty: 4 Endplate Nut 7mm Jam
$1 -- Qty: 4 Washer, Split Lock 7mm
$2 -- 6mm Grease Nipple
$11 -- Oil Drain Plug Magnetic
$1 -- Oil Throw Washer A16
$20 -- Driveside Bearing Li/SX
$23 -- Seak Ser - 5 Engine Seal ROLF
$2 -- Qty: 4 Drive Side Oil Seal Plate Screw
$3 -- Spacer, Seal Retainer - Mag
$2 -- Spacer, Bearing Spacer - Mag
$8 -- Small End Bearing - 16mm
$2 -- Circlip - Internal 52nn - Nag Flange
$0000 -- Bearing - Magneto - TV 175
$16 -- Mainshaft Ball Bearing
$8 -- Bearing - Mainshaft Needle Roller
$6 -- Kickstart Pad in black
$11 -- Bearing - Layshaft Needle Bearing
$2 -- Qty: 2 Ball Bearing - Cruciform
$22 - Qty: 2 Bearing - Clutch Sprocket Needle Roller

Rough Estimate Prior Tax/Shipping: $186.00


(Note: all figures rounded up so I expect price will be slightly less)

I still need to determine:
1) What brand engine mounts will I use?
2) Which electronic ignition will I use?

Electronic Ignition Price Comparison

I am looking into which electronic ignition I want to go with. To read more on the topic you can visit the LCUSA forum here(you must be a member though).

The Popular BGM Set-Up at a Lambretta Shop
$106 -- BGM 120w electronic stator plate
$48 -- Ducati 12v/20a AC regulator
$55 -- Ducati CDI/Ignition coil
$90 -- Electronic flywheel (have GP, have TV?)
$46 -- MB Loom
$3 -- Dust cover
$1.50 -- Clip
$9 -- Complete bulb set
$5 -- Flywheel nut
$40 -- Mount kit
Grand Total: $403.50

SIL Set-Up at another scoot shop
$175 -- Stator/Lightened Flywheel (fins trimmed to fit beneath flywheel)
$40 -- Aftermarket CDI/Ignition coil
$63 -- Ducati CDI/Ignition coil
$30 -- Casa Lambretta Italian-Made Loom
$3 -- Flywheel nut
$3 -- Dust cover
$1 -- Clip
$9 -- Complete bulbs
$30 -- Mount bracket
Grand Total: $354

As you can see there is NOT a big difference in price. Both shops are very reputable!

Disc brake purchased

I decided before I invest in rebuilding the engine or beginning this project that I should focus on purchasing all the rarer parts that I am missing. I first purchased the switch-side perch. Next I purchased the carb. And my most recent purchase has been the disc brake unit. All are original parts.

I purchased the complete from Paul B. in Portland, OR. I paid $450 for the unit. $12 for shipping. $6 for shipping insurance. Paul B. is a really good guy and sold it to me for the price he paid for it. May karma come back to him when he hunts down his next rare part! Paul was hesitant to sell it to me. I left the ball in his court after asking him to sell it to me. He responded a few weeks later and offered to sell it to me. California scooterists see these parts sell in the $500-$600 range; although it is rare that they come up.

I posted my request to find the disc brake and buy it on LCUSA's site, but to no avail. The disc itself goes for sale on eBay from time to time, but that seems about it. Stu recommended looking in Scooterist International magazine as they are advertised in it, but Tom G. said the Brits pay crazy money for their scoots and the demand for larger displacement bikes over there would make it a bit challenging to find the part.

There are hydroalic disc brakes and reproductions available. Years ago, when Scomo was still around they sold this repro disc brake (see below). It was sand cast and the quality was said to be so-so. I have also been warned to be very careful with the Indian repros, issues with the quality of metal and I'm not 100% sure, but I think someone once warned me about the safety of them as well (don't quote me).I also read that these repro disc brakes required some work to get it to fit properly.

For more info on this from folks that know a lot more than me, you can read (if you're a member) what the LCUSA members said about disc brakes here.

Carb: Dell Orto S1/20

Specs for the Dell Orto carb for the TV175 S.3:
SH1/20
Bore: 20 mm
Slide: 5914-1
Atomizer: 5899-2
Main jet: 106
Pilot jet: 50
Starter jet: 50
Float weight: 5grms

Over the winter break I decided not upgrade to an electronic ignition and a Casa 186cc kit for two reasons: (1) the bike is a bit rarer and the further I get into this the more stock I lean and (2) the price was about $1000-1200 more. I posted my "wanted" note to LCUSA and Scooter BBS. I got a couple bites for both the stator/flywheel and carb I need. Due to the fact that I have two TV175 engines, both very early on the serial stamps, I need two of each. I emailed around about the stator/flywheel with Michael in PDX who led me to Ming. Ming was selling the carb pictured below for $50.
The carb throttle threads are stripped a bit at the top and therefore it does not sit as well. This is a common problem found with these old carbs. Stickley offers a few possible repairs, including pinching the throttle cable housing and using some Loctite. I bet a heli-coil would work well too and look prettier. There is a machinist with a website "Jonbretta" who will machine the threads into a piping then drill out the threads in the carb and tap it down into place. You probably won't even see the difference when the carb is installed. Ming estimated the cost at $20 for that work. He also knew of a another carb for sale from a guy named Paul for $70 with jets and all. That is the carb pictured below, which I bought. Paul also believes that he has the main jet, which is the only item missing, and he will mail it to me when he finds it. The metal is banged up a little here and there, but what can you expect with its age. Ming's looked better, but suffered stripped threads.
Looking more closely you can see that it is an original stock carb.  Sorry for the poor quality pix above.  I will replace it at some point under natural sun light.It is my understanding that finding a 20mm carb is a bit of a challenge, but finding a 22mm is even more difficult.  Seeing as I have two engines, I want a second carb as well. One option I am looking at is to buy a 20mm carb that came out of a Jet 200 (Serveta -- Spanish Lambretta).  
This carb is a this is a Licensed Dellorto carb stamped: Lic. DellOrto Arbeo Bilbao. This carb will fit the TV175 engine just like the original Dell Orto carb would and function exactly the same. I have a bit of a thing for stock though, myself. It could be a cheaper alternative to use this carb though. The seller, Doug, contacted me via BBS and offer it to me at a good price including shipping and a carb rebuild kit.

Disc Brake

The only part to the disc brake I have is the backplate pictured here. I will be hard to find replacement parts for it so I am hunting down a complete kit. It won't be cheap. When I bought the bike Stu told me to expect $400 to replace. I did meet a guy named Paul, while in Portland, Oregon for the holidays, who sold me a carb and had the complete disc assembly pictured below.I am in the process of trying to find someone who will sell their complete front disc brake assembly.

Batt or no batt?

I began to search to replace my stator and flywheel. I have a 4-pole Dansi set-up with broken fins on the flywheel. I was asked whether I had an AC or DC hook up when I began my search for the stator/flywheel. In an effort to confirm if my TV is AC or DC I spoke with Gene Meredith of Scooters O.

Gene responded, "Does the frame have a battery tray? Would be on the right side, just behind the glovebox. If there is no tray there, then it would not have had a battery. Most UK scoots were battery only, but we have found battery and non-battery SX200 and TV200/175s here. Italy and USA had many non-battery models."

Tool Chest

As a kid I was not exposed to working on scooters, motorcycles, or cars.  However I did work on my BMXs, mountain bikes, and skateboards, etc.  I want to make sure that things are different for my son and he grows up with an appreciation for a clean and organized workshop and a love of scooters . . . so I am starting him young and sadly old for myself.

My dad has some basic tools and a decent work bench, but I recognize I need more.  I just bought the Craftsman tool chest (40%+ off) and will slowly fill it with new nice tools to lay along side my current tools.  No more 5 gallon buckets to hold my tools.  And some day, my son will inherit a scoot from mom and dad and workshop tools to boot.