Search found 76 matches

by paul213
Wed Jun 19, 2013 9:43 pm
Forum: Vespa Tech
Topic: vespa 90 electeronic conversion
Replies: 2
Views: 1385

vespa 90 electeronic conversion

can anyone point me in the direction of a wiring diagram for a vespa 90 with a px style electronic conversion ( just the 2 lighting wires black earth and blue power)

thanks paul
by paul213
Tue Feb 19, 2013 3:54 pm
Forum: Vespa Tech
Topic: electric problems p range
Replies: 13
Views: 3586

Re: electric problems p range

check the horn button , take the switch out of the bars and clean the switch for some reason all power from engine for the lights is fed up unregulated to the horn switch down to the horn and then back to the regulator then back up to headset regulated for the lights etc if the horn switch gets dirt...
by paul213
Fri Feb 08, 2013 12:08 pm
Forum: Vespa Tech
Topic: gear box oil
Replies: 11
Views: 2531

Re: gear box oil

have always used any cheap car engine oil ( 20/50 ,10/40 , think i have 15/40 in at the moment) same as all my friends never had any trouble with gearbox or clutch . and if you use cheap oil, change it more regularly the gearbox gets the crap flushed out.
by paul213
Fri Jan 25, 2013 12:24 pm
Forum: Lambretta Tech
Topic: Best Elec Ignition set up
Replies: 10
Views: 3099

Re: Best Elec Ignition set up

A lot of people moan about indian stators but I think the main problem is them coming into the uk from less reputable sources ,I have fitted quite a few indian ignitions the genuine ones I have got from scooter restorations have given no trouble, the ones from parts fairs an ebay seem to fail a lot....
by paul213
Thu Jan 17, 2013 12:20 pm
Forum: Lambretta Tech
Topic: 'Blueprinting' a Jetex Carb
Replies: 34
Views: 14960

Re: 'Blueprinting' a Jetex Carb

haven't owned one myself but problems i have come accross only relate to poor quality control
check float operates freely ( remove flash from body and float )
float needle damaged on almost new carb
jets and atomisers aren't always the same size or machined the same, although marked the same
by paul213
Wed Jan 02, 2013 5:06 pm
Forum: Lambretta Tech
Topic: jl3 tuned length
Replies: 2
Views: 1310

jl3 tuned length

could anyone tell me the tuned length of a jl3 pipe?

thanks Paul
by paul213
Tue May 22, 2012 1:30 pm
Forum: Vespa Tech
Topic: Lost all lights and horn....... Help!
Replies: 4
Views: 1435

Re: Lost all lights and horn....... Help!

if it has std wiring try wd 40 or similar on the horn switch flick the button and see if this retores the power . for some strange reason the lighing power comes off stator all the way up to the horn switch then back down to the regulator then from there to the lights
by paul213
Tue Nov 01, 2011 10:23 pm
Forum: Lambretta Tech
Topic: Dev Tour - what gearing?
Replies: 13
Views: 3091

Re: Dev Tour - what gearing?

my reworked v1 muggy 225 std stroke pulls 4.8 with a devtour and acording to rev counter tops out about 8000 in 4th pulls ok 1 up with luggage long hills require changing down tried this after mk4 taffy that realy pulled, accelerated up hill in 4th but limited top end to 7000 rpm I wanted just a bit...
by paul213
Sat Sep 03, 2011 8:02 pm
Forum: Vespa Tech
Topic: machining cylinder head
Replies: 2
Views: 1627

Re: machining cylinder head

is this what you have got on yours or what you have been told to aim for by someone?
by paul213
Sat Sep 03, 2011 3:47 pm
Forum: Vespa Tech
Topic: machining cylinder head
Replies: 2
Views: 1627

machining cylinder head

doing a stg 4 for friend. the head has a volume of 15cc and the squish as std 3.1mm . std comp ratio on this is 8.7:1, on my lambretta I have always aimed for 9:1 std and 6:1 corrected I have jacked the cylinder up 1.7mm so now squish would be 4.8mm if head is left as is no good at all ,but if i mac...