Scooterotica Tuning & Maintenance Information

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Global Announcement: NEW! Active Topics and Tapatalk (and uploading images)...

Last post by ktmh5 « Mon Dec 09, 2019 11:39 am
Posted in General Scooter Chat
Replies: 7
by drunkmunkey6969 » Mon Nov 20, 2017 10:48 am » in General Scooter Chat

Two 'help' topics for all users, new and old: Active Topics and Tapatalk.

Active Topics:

Anyone visiting the forum via PC/Laptop etc who wants to...

7 Replies

19904 Views

Last post by ktmh5
Mon Dec 09, 2019 11:39 am
Global Announcement: How To Upload Pictures

Last post by Scooterdude « Tue Aug 21, 2018 4:30 pm
Posted in Welcome
Replies: 19
by drunkmunkey6969 » Wed Mar 27, 2013 10:57 am » in Welcome
1

2
Pictures: Anyone wanting to display pics or vids should use these methods:

Flickr (recommended).
1) Sign up to an account with Flickr:
2) Upload...
19 Replies

57991 Views

Last post by Scooterdude
Tue Aug 21, 2018 4:30 pm

Topics

Locked: Tuning Terminology.......

Last post by drunkmunkey6969 « Tue Jan 06, 2009 5:12 pm

by drunkmunkey6969 » Tue Jan 06, 2009 5:12 pm

Note from Dan (drunkmunkey6969): Saw this very useful post on the LCGB site by Curryburner (Wayne M) and so i asked his permision to re-post here on...

0 Replies

17653 Views

Last post by drunkmunkey6969
Tue Jan 06, 2009 5:12 pm
Locked: Basic 2-Stroke Tuning Principles......

Last post by drunkmunkey6969 « Tue Jan 06, 2009 5:10 pm

by drunkmunkey6969 » Tue Jan 06, 2009 5:10 pm

Not my own info but taken from elsewhere on t'internet. Article taken from Eric Gores Forward Motion

TWO-STROKE PRINCIPLES

Although a two-stroke...

0 Replies

22993 Views

Last post by drunkmunkey6969
Tue Jan 06, 2009 5:10 pm
Locked: FREE 2-Stroke tuning info, PDFs and Software........

Last post by drunkmunkey6969 « Tue Jan 06, 2009 5:07 pm

by drunkmunkey6969 » Tue Jan 06, 2009 5:07 pm

Jennings 2-Stroke Tuners Handbook PDF of scanned book :

2-Stroke Performance Tuning, Graham Bell:

Advanced Porting Basics:

Helmholtz Resonance....

0 Replies

22956 Views

Last post by drunkmunkey6969
Tue Jan 06, 2009 5:07 pm
Gear ratio's

Last post by YAMLAM « Sat Apr 10, 2021 4:56 pm
Replies: 6
by kevspeed » Fri Apr 02, 2021 12:38 pm

Hi,bit of an odd one this,but one for the mathematically competent.
Most of us have read the Webster tuning manual,a great source of information,but...

6 Replies

1496 Views

Last post by YAMLAM
Sat Apr 10, 2021 4:56 pm
Carb question

Last post by Smiffy16v « Tue Apr 06, 2021 7:23 pm
Replies: 1
by Smiffy16v » Mon Apr 05, 2021 7:38 pm

Hi all iv got a 125 series 1 with a 250 top end and kegra pipe it's running a standard ma18bs5 carb for a 125 this is how it came to me I wanted to...

1 Replies

610 Views

Last post by Smiffy16v
Tue Apr 06, 2021 7:23 pm
Gori gp50 on rapido 225

Last post by Leo « Wed Mar 03, 2021 11:07 pm
Replies: 1
by Cootscoot » Wed Feb 03, 2021 1:12 am

Been looking at the Gori gp50 , anyone know if this would be suitable for a rapido 225 ?

1 Replies

878 Views

Last post by Leo
Wed Mar 03, 2021 11:07 pm
what wire goes where?

Last post by nick b « Wed Jan 06, 2021 7:29 pm
Replies: 15
by nick b » Sat Jul 07, 2018 1:33 pm
1

2
i have just had to renew my ignition switch it is a dc . I assumed that all I had to do is unplug the old wires and replace them with the same...
15 Replies

6622 Views

Last post by nick b
Wed Jan 06, 2021 7:29 pm
Balancing a lambretta crank/top end??

Last post by Rich_T « Wed Jul 29, 2020 11:19 pm
Replies: 5
by Raffspeed » Sat Jun 02, 2018 6:03 pm

Need some advice folks,
I'm building a 135/140 Vega. From what I'm told, when this is done the machine has a tendency to vibrate a touch. This gave...

5 Replies

4861 Views

Last post by Rich_T
Wed Jul 29, 2020 11:19 pm
Vespa T 5 Classic

Last post by ricalnic « Fri Jul 03, 2020 1:56 am
Replies: 1
by jonboy » Thu Jul 02, 2020 8:20 pm

I am currently deciding to have my standard T 5 modified
Malossi 172 with mmw head
I want to keep standard carb
Unsure of which clutch and exhaust...

1 Replies

1570 Views

Last post by ricalnic
Fri Jul 03, 2020 1:56 am
Battery Problems

Last post by Grumpy225 « Tue Jun 23, 2020 6:53 pm
Replies: 3
by dippyrider » Sat Jun 20, 2020 7:32 pm

I have a LI150 Series 2. I have upgraded to 12v and fitted a Casatronic Ducati Ignition System which works a treat.
I have connected the wiring as...

3 Replies

1381 Views

Last post by Grumpy225
Tue Jun 23, 2020 6:53 pm
TS1 gearing

Last post by 2bobscoot « Sat May 23, 2020 7:00 pm
Replies: 8
by 2bobscoot » Sun May 17, 2020 9:32 am

Advice please
Running a Ts1 225 with a JL4 curly pipe, Li 150 gearbox, pwk 30mm carb.
Acceleration in 1st 2nd 3rd is fantastic , 4th gear and it will...

8 Replies

2475 Views

Last post by 2bobscoot
Sat May 23, 2020 7:00 pm
Large or Small Cone

Last post by YAMLAM « Sat May 02, 2020 7:10 pm
Replies: 6
by dippyrider » Sat Apr 18, 2020 7:57 pm

I have a 1960 LI150 Series 2, how do I know if it is a large or small cone crankshaft?

6 Replies

2264 Views

Last post by YAMLAM
Sat May 02, 2020 7:10 pm
Lumpy tickover with PHBH

Last post by stand63 « Mon Mar 30, 2020 12:24 pm
Replies: 9
by stand63 » Sun Mar 29, 2020 9:17 am

Hi folks
Running a new build Scootopia 186 with a 28phbh with a tea strainer filter and AF clubman. Runs fine, starts fine and plug colour fine. I’ve...

9 Replies

2457 Views

Last post by stand63
Mon Mar 30, 2020 12:24 pm
variatronic ignition fitted to a casa 225 timing instructions

Last post by garry inglis « Sun Feb 16, 2020 11:59 am
Replies: 10
by holty » Fri Feb 14, 2020 8:33 pm
1

2
hi all, im just building a casa 225 x7 kit onto an engine for a mate of mine, also got a protti pipe and a variatronic ignition to fit, the...
10 Replies

3187 Views

Last post by garry inglis
Sun Feb 16, 2020 11:59 am
Mugello 225 best touring exhaust

Last post by Cooliorz « Sat Feb 15, 2020 4:53 am
Replies: 2
by Cooliorz » Tue Feb 11, 2020 5:40 pm

Hi guys,
I just assembled a Mugello 230 long-stroke engine.
The ports have been matched and a boost port has been added, as well as piston windows....

2 Replies

1279 Views

Last post by Cooliorz
Sat Feb 15, 2020 4:53 am
Imola gearing

Last post by Spj « Sat Dec 14, 2019 3:55 am
Replies: 6
by Simon lambretta » Sun Nov 24, 2019 3:14 pm

Hi, I’ve just bought a imola kit, and I was thinking about saving up for a af 5 speed gearbox.Would it be worth buying,or stick to li50...

6 Replies

2368 Views

Last post by Spj
Sat Dec 14, 2019 3:55 am
kytronic spark magnifier

Last post by firekdp « Tue Nov 26, 2019 11:17 am
Replies: 8
by nick b » Thu Jun 14, 2018 10:26 am

has anyone had experience of a spark magnifier I have one but have heard it could cause stator failure so asking for advice from anyone has got one

8 Replies

5457 Views

Last post by firekdp
Tue Nov 26, 2019 11:17 am
225 Cylinder Head Profiling

Last post by Cav « Mon Nov 25, 2019 12:43 pm
Replies: 6
by Cav » Tue Nov 19, 2019 12:55 pm

Anyone re profiled a standard 200 head to fit a re bored 70mm barrel themselves? Anyone done this at home using a profiling tool such as a Dremel. I...

6 Replies

1943 Views

Last post by Cav
Mon Nov 25, 2019 12:43 pm
SX 200 Disc pads hydraulic conversion

Last post by Grumpy225 « Wed Nov 20, 2019 7:52 pm
Replies: 1
by Cav » Wed Nov 20, 2019 12:57 pm

I've got a front disc brake SX200 hydraulic conversion, but it's in parts. It's a copy, but based on the standard Innocenti hub and brake assembly...

1 Replies

999 Views

Last post by Grumpy225
Wed Nov 20, 2019 7:52 pm
Scawalbe Sportsman tyres

Last post by Cav « Wed Nov 20, 2019 1:05 pm
Replies: 11
by Scooterdude » Tue Dec 27, 2016 11:12 am
1

2
Ok now Im getting a bit more steam from my Lambretta I'm thinking of upgrading the tyres from the Schwalbe classic white walls I'm currently running...
11 Replies

5478 Views

Last post by Cav
Wed Nov 20, 2019 1:05 pm
Intake length calculator

Last post by Avantone « Wed Jul 03, 2019 11:52 am

by Avantone » Wed Jul 03, 2019 11:52 am

Hi, the Optimum Intake Runner Prediction software stickied in this section says that I'd need an 18 inlet tract to achieve harmonics within a usable...

0 Replies

1574 Views

Last post by Avantone
Wed Jul 03, 2019 11:52 am
Remote filter

Last post by rbartucca33 « Wed May 01, 2019 9:27 pm

by rbartucca33 » Wed May 01, 2019 9:27 pm

Good Evening everyone , have found latest broken part on Vijay , can anyone recommend a remote filter and where would I start with jetting? Have...

0 Replies

1985 Views

Last post by rbartucca33
Wed May 01, 2019 9:27 pm
PHBH Carb Question

Last post by Warkton Tornado No.1 « Fri Apr 12, 2019 11:44 pm
Replies: 7
by cartmel808 » Wed Apr 10, 2019 11:10 pm

What’s the significance of the brass washer (pictured below) on PHBH carbs and Is it essential to the carburettors operation to have it in place??...

7 Replies

2787 Views

Last post by Warkton Tornado No.1
Fri Apr 12, 2019 11:44 pm
Vespa- exhaust port only?

Last post by 3narf « Tue Apr 09, 2019 11:40 am
Replies: 2
by 3narf » Mon Apr 08, 2019 8:52 pm

Hi

I have a standard LML 150 reedvalve engine. I'll be replacing crank, cylinder, carb, ignition etc eventually but for now I'm just doing some...

2 Replies

1506 Views

Last post by 3narf
Tue Apr 09, 2019 11:40 am
advice

Last post by simon_t « Fri Mar 22, 2019 7:59 pm
Replies: 2
by simon_t » Fri Mar 22, 2019 6:51 pm

Hi All,
looking for some jetting advice for my TS1 and 30mm phbh plus Ron Moss Avanti ex-box zaust.

Cheers

2 Replies

1570 Views

Last post by simon_t
Fri Mar 22, 2019 7:59 pm

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