Search found 395 matches

by johnny650
Sat Oct 28, 2017 11:54 am
Forum: Lambretta Tech
Topic: lighting and charging upgrade options
Replies: 2
Views: 1432

lighting and charging upgrade options

i'm looking into upgrading the lighting and charging system on my stock 64 Li 150S . Most of the threads and websites I've looked at are now very out of date and frankly there is so much out there that it is bewildering. What is the current practice in upgrading the electrics without being too radic...
by johnny650
Thu Oct 26, 2017 1:57 pm
Forum: Welcome
Topic: Hello!
Replies: 6
Views: 2647

Re: Hello!

Welcome Gaz from one johnny to another ;)
by johnny650
Fri Oct 20, 2017 8:12 pm
Forum: Lambretta Tech
Topic: Lambretta small block Port Maps
Replies: 10
Views: 4522

Lambretta small block Port Maps

I tried my hand at producing a port map of my 200cc small block cylinder before fitting it and as it turned out quite well I thought that it might be useful to someone else. It could prove a useful starting point for porting other small block cylinders perhaps? I'd be interested to see your small bl...
by johnny650
Thu Oct 19, 2017 11:59 pm
Forum: Lambretta Tech
Topic: 175 kit, what cylinder head?
Replies: 10
Views: 4381

Re: 175 kit, what cylinder head?

scooter restorations have some Indian 175cc heads for sale in the clearance section for £15
Small blow holes are easy enough to fill with low temperature aluminium brazing rods ....if they are external to the spark plug they are not under compression. Make sure that the threads are ok though
by johnny650
Wed Oct 18, 2017 11:23 am
Forum: Lambretta Tech
Topic: Small end shims.... Indian pistons
Replies: 4
Views: 2509

Re: Small end shims.... Indian pistons

There shouldn't be any issues with shim flutter as the recommended gap is only 0.015mm . I presume the cutaways are to increase lubrication of the gudgeon pin. i would be more concerned with using a 3mm gap and allowing the piston to float on a 22.5mm extended needle roller bearing due to the natura...
by johnny650
Tue Oct 17, 2017 10:15 pm
Forum: Lambretta Tech
Topic: Small end shims.... Indian pistons
Replies: 4
Views: 2509

Re: Small end shims.... Indian pistons

thanks for responding . the more I read about this the more this problem seems to be a common source of different opinion ...bit like 'which is the best gear oil '? there are quite a few threads on various forums but none seem to arrive at a definitive answer. I finally ended up where I should have...
by johnny650
Tue Oct 17, 2017 4:14 pm
Forum: Lambretta Tech
Topic: Small end shims.... Indian pistons
Replies: 4
Views: 2509

Small end shims.... Indian pistons

Bit of a dilemma and I need some help. I am currently fitting a 200cc small block cylinder kit to a series 3 crankcase . I have fitted an aftermarket crank of unknown origins and I'm now not sure of how I should shim the small end . :roll: I have read through Stickys appendix but am still non the wi...
by johnny650
Wed Oct 11, 2017 6:50 pm
Forum: Lambretta Tech
Topic: Shims and things .
Replies: 2
Views: 1520

Re: Shims and things .

its usually 0.7 thick and it needs to go in or when you tighten the clutch nut it all locks up yes I know I need to fit a shim Gary I just couldn't understand the shim sizing in Sticky. It has to be a typo . I ordered a range of sizes from 0.6 to 1.2mm as they are only 90p each. ;) Then minutes lat...
by johnny650
Wed Oct 11, 2017 3:41 pm
Forum: Lambretta Tech
Topic: Shims and things .
Replies: 2
Views: 1520

Shims and things .

Could someone please clear up a small anomaly for me . I cannot find the original shim washer that I need to fit to the gear cluster beneath the clutch sprocket . Looking in Stickys 1st edition in the engine shim ID chart the 'gear cluster shims' lower shim and the top 'clutch sprocket' shims are sh...
by johnny650
Fri Oct 06, 2017 10:02 pm
Forum: Lambretta Tech
Topic: Endplate fixing studs
Replies: 17
Views: 7278

Re: Endplate fixing studs

[quote=johnny650 post if you look at an endplate and measure it yourself with a venier gauge you'll see that the fixing holes are recessed by 8mm . ;) Stickys manual page 72 refers to the height of the nuts and mentions that you can use regular sized nuts because of this recess in the endplate. If ...