motor size

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

Hi, I've just registered Wink

Sorry for my english... I'm french... Confused

I hope you won't loaf at me, but I'm a vintage scooter addict...
Actualy, I'm trying to fit an NSR motor in an old Lambretta Li scooter.

Could you give me some information about the NSR125 motor ?
Actually, I'm looking for the sizes...

Thank's a lot !

Acman

karen_moomin · World Chat Champion Joined: 11 Apr 2004 Karma :

Bonjour et bienvenue au forum. Vous serez intoxiqué à cet emplacement avant que vous le sachiez! Laughing

I have an NSR125, great little thing, and my dad used to have a Lambretta. I can't be of any technical help I'm afraid, but welcome anyway and good luck with the project! Thumbs Up

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

Thank's Karen !

bradders · Two Stroke Sniffer Joined: 02 Jun 2004 Karma :

theres always one clever cloggs
Clapping

bradders · Two Stroke Sniffer Joined: 02 Jun 2004 Karma :

just jealous of your multi lingual talents ( not your bike)....lol Twisted Evil

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

I can understand, I'm a classic scooter addict and I just wan't to win a prototype scooter race... I heard a lot of good things about your motor ! So I'm going to try to build something... Laughing

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

If its for racing I'd go for the rotax 123/124 engine used in the aprilia RS125. Its more powerful.

Can't help with sizing, but where does the engine go in a lambretta? If its under the seat and driving the wheel by a chain, then you should be able to fit pretty much any 125 engine in there - just make sure the gearbox sprocket is on the correct side.

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

That's perfectly right !
BUT the NSR motor is easy to find, less expensive, and it's life seams much longer ! Wink

I don't want no more Italian motors !!! Mr. Green

Too much problems !

McJamweasel · BCF Junkie Joined: 22 Mar 2002 Karma :

I will try and get the sizes for you later.
____________________
BCF: Be yourself, just don't be an arse.

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

That's cool !
Thanks a lot !
This way I can see if it fits... Very Happy

https://www.worb5.de/galerie_ungefaehr_fuenf_alt_1.jpg

tatters · Exxon Valdez Joined: 05 Jan 2004 Karma :

the Lambretta Li (180cc) engine is mounted as part of the hub/wheel (like most classic scooters) and it would be Seriously difficult to get a bike engine in, also Li`s especally the two seat model are worth a lot so it would be a waste to fuck up.
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Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

I'm wouldn't be so sure ! Wink

Any way, I'm gonna do it...
Mr. Green

I'm an engineer, I think I know what I'm doing... Cool

It won't be my first Lambretta, I already have a GP200 with a TS1 racing kit and a Li with an Imola kit !
I think I can get better perf with a bike's engine.
A friend of mine has fitted a 350 RDLC in a Lambretta ! Wink

McJamweasel · BCF Junkie Joined: 22 Mar 2002 Karma :

Right, I've knocked up a dodgy diagram with some sizes on for you. This is as its mounted in the NSR frame. Al sizes are in cm. The round blobs are the engine mounts.

It is 29cm wide at its widest point.
____________________
BCF: Be yourself, just don't be an arse.

tatters · Exxon Valdez Joined: 05 Jan 2004 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

GREAT !!!! Thumbs Up

I knew I would find here what I was looking for !
Thank you very much McJamweasel ! Very Happy

Another question : What power does this motor develope ?
And same question simply with a racing kit ?

Acman

McJamweasel · BCF Junkie Joined: 22 Mar 2002 Karma :

Its around about 24bhp. Don't forget that the exhaust is very important in determining how powerful a 2 stroke is, unless you can fit the stock size pipe on you will lose power.

Have you also thought about fitting the gear change and radiator? That may cause you some problems.
____________________
BCF: Be yourself, just don't be an arse.

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

No problem for the gear change... But I'm not sure where radiators could fit yet...
I also have to transform an old Honda rear arm (an iron one so I can cut it shorter an weld it) with 2 shock absorbers...
I've also got to find a peugeot SV scooter front fork with disc brake and adapt it... Cool

My project, if it works, won't be on weels before next year !
But I'll be able to say Middle Finger

to most scooter drivers ! Mr. Green

Do you know some good dealers for cheap parts ?
cause in France... It's gonna cost me a lot ! Mad

Acman

karen_moomin · World Chat Champion Joined: 11 Apr 2004 Karma :

[McJam]

For Honda parts try either ebay or www.davidsilverspares.co.uk. If they don't list a part on the website then give them a call or an e-mail.

Good luck! It sounds like you'll need it. Razz

[/McJam]

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

Thank's again Karen ! Thumbs Up

Acman · Derestricted Danger Joined: 29 Jun 2004 Karma :

After talking with friends, I decide not to use an NSR motor but a 250 CR Honda motor for my custom... Do you have any dimensions for this motor ? Cool