LCGB Forums

The ability to post messages is restricted to LCGB members. Any questions contact us at lcgbadmin@googlemail.com

Skip to content

Series 1

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models
Post a reply

Series 1

Postby betty2015 » Wed Jul 18, 2018 3:30 pm

Thoughts please
Just built series one engine and found on plug shop that plug was black
Also by error kicked scooter off with out choke
I think main oil seal has blown
Ive checked choke works fine
Any thoughts before i pull it apart
New viton seal
betty2015
 
Posts: 55
Joined: Thu Mar 03, 2016 5:55 pm
Top

Re: Series 1

Postby ULC Soulagent » Wed Jul 18, 2018 3:44 pm

What carb and settings would be a good starting point ;)
User avatar
ULC Soulagent
 
Posts: 2137
Joined: Sun Apr 03, 2016 3:26 pm
Location: Milton Keynes
Top

Re: Series 1

Postby betty2015 » Wed Jul 18, 2018 4:00 pm

Standard carb 175 top end
106 main jet running through original filter
betty2015
 
Posts: 55
Joined: Thu Mar 03, 2016 5:55 pm
Top

Re: Series 1

Postby ULC Soulagent » Wed Jul 18, 2018 5:09 pm

What was the throttle position on the plug chop ?
Was there much white smoke coming from exhaust?
User avatar
ULC Soulagent
 
Posts: 2137
Joined: Sun Apr 03, 2016 3:26 pm
Location: Milton Keynes
Top

Re: Series 1

Postby gp200ts1 » Wed Jul 18, 2018 6:13 pm

Does the gearbox oil smell of petrol
gp200ts1
 
Posts: 256
Joined: Fri May 30, 2014 2:43 pm
Top

Re: Series 1

Postby betty2015 » Wed Jul 18, 2018 8:26 pm

I would say not that smoky but there is a bit
Oil doesnt smell of petrol
betty2015
 
Posts: 55
Joined: Thu Mar 03, 2016 5:55 pm
Top

Re: Series 1

Postby ULC Soulagent » Wed Jul 18, 2018 8:32 pm

Grade of plug?
Wouldn’t think it would be main seal has gone.
User avatar
ULC Soulagent
 
Posts: 2137
Joined: Sun Apr 03, 2016 3:26 pm
Location: Milton Keynes
Top

Re: Series 1

Postby betty2015 » Wed Jul 18, 2018 9:02 pm

Never started lambretta with out choke ? Cold
betty2015
 
Posts: 55
Joined: Thu Mar 03, 2016 5:55 pm
Top

Re: Series 1

Postby ULC Soulagent » Wed Jul 18, 2018 10:18 pm

betty2015 wrote:Never started lambretta with out choke ? Cold

Miracles never cease too amaze from Lambretta engines :D
Cold !!! What spark plug you using?
And when you say plug was black ! Sooty or oily ?
What actual carb you using?
Sorry for all the questions but every little answer helps us too help you ;)
User avatar
ULC Soulagent
 
Posts: 2137
Joined: Sun Apr 03, 2016 3:26 pm
Location: Milton Keynes
Top

Re: Series 1

Postby betty2015 » Wed Jul 18, 2018 10:30 pm

Black oily ang nc3 plug
betty2015
 
Posts: 55
Joined: Thu Mar 03, 2016 5:55 pm
Top

Re: Series 1

Postby betty2015 » Wed Jul 18, 2018 10:30 pm

Standard 19mm
betty2015
 
Posts: 55
Joined: Thu Mar 03, 2016 5:55 pm
Top

Re: Series 1

Postby ULC Soulagent » Thu Jul 19, 2018 8:00 am

betty2015 wrote:Standard 19mm

Standard main jet for this carb is 95.
Try coming down a few points on it.
User avatar
ULC Soulagent
 
Posts: 2137
Joined: Sun Apr 03, 2016 3:26 pm
Location: Milton Keynes
Top

Re: Series 1

Postby ULC Soulagent » Thu Jul 19, 2018 9:32 am

betty2015 wrote:Black oily ang nc3 plug

Change the plug to an champion n5 or NGK B7es for dialling in a fresh rebuilt engine and take it from there
User avatar
ULC Soulagent
 
Posts: 2137
Joined: Sun Apr 03, 2016 3:26 pm
Location: Milton Keynes
Top

Re: Series 1

Postby betty2015 » Thu Jul 19, 2018 10:26 am

Thanks
betty2015
 
Posts: 55
Joined: Thu Mar 03, 2016 5:55 pm
Top
Post a reply

Return to Series 1, 2 & 3

Who is online

Users browsing this forum: No registered users and 59 guests

Powered by phpBB® Forum Software © phpBB Group