OLD 65' VESPA 150CC ENGINE TROUBLE
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Lurker
65' Vespa 150cc
Joined: 25 Jan 2009
Posts: 3
Location: New York, NY
Sun Jan 25, 2009 9:02 pm quote
I have a 65' Vespa with a 150CC, I have been having serious engine trouble, several times a month. A guy over at the shop said I should consider a new Lambretta or Stella engine, thoughts? Problems range from locking up at speeds over 40mph (specifically when traveling at this speed for more then a minute), sputtering at any speed (when it gets warm), to just straight out shutting off. Being that I ride the bike in Manhattan and over bridges, it gets scary.

Any thoughts? Thanks
Ossessionato
1970 Vespa Rally 180
Joined: 04 Dec 2008
Posts: 4144
Location: Denton Tx.
Sun Jan 25, 2009 9:10 pm quote
sounds like a mixture problem. and i dont think a lambretta engine will fit in a vespa.

you should get the VIN# searched as a good start so you know exactly what engine you have. get a haynes manual for your year and model bike then start doing your research.

your information in a bit sparse. just saying its dieing on you is not specific enough. are these siezes you are haveing, or what?

you should do alot of reading first. start with the vin# then check the carb settings, plug condition, compression, and then spark (ignition). that is just the basics.
how long have you had this bike running?
Addicted
'60 VS5, '63 Li 150 Special, '07 PX125
Joined: 16 Aug 2008
Posts: 836
Location: Seoul & Jeju
Sun Jan 25, 2009 9:43 pm quote
If this guy at the shop actually worked at the shop, and if he really suggested that you should put a Lambretta engine in your Vespa... I think you need to find a new shop.

I think a bit more history on your bike would help us out here. '65 150 is a bit of a danger zone, so it would really help to know where the bike is from and what it's been doing for the past 44 years.

Or honestly, just post a pic and we'll know better what we're dealing with...
Banned
Joined: 27 Sep 2007
Posts: 1186

Sun Jan 25, 2009 10:08 pm quote
pull the plug, and take a pic, lets see pics of the entire scooter, etc.
Moderator
1962 GS160mk1, 1963 GS160mk2, 1965 SS180, 1974 Rally 200, wife's LI150
Joined: 05 Mar 2007
Posts: 6971

Mon Jan 26, 2009 7:18 am quote
I think the guy probably suggested he buy a whole SCOOTER = lambretta ... not a lambretta engine for his vespa

And my spidey senses are tingling that the OP has an asian bike and the engine is probably held together with chewing gum, and the mechanic doesn't want to bother. ( and i certainly don't blame him )

Why else would he suggest that he either buy a new engine OR a new scooter?
Moderator
2006 PX 150 & Malossi Kitted Malaguti Yesterday (Wife's)
Joined: 11 Dec 2007
Posts: 12959
Location: Paros Island, Greece
Mon Jan 26, 2009 7:53 am quote
Rover Eric wrote:
Why else would he suggest that he either buy a new engine OR a new scooter?
He has these for sale?

Sounds like something is seizing to me? Locks up?

Al
Ossessionato
Joined: 23 Sep 2008
Posts: 2633

Mon Jan 26, 2009 11:29 pm quote
Rover Eric wrote:
I think the guy probably suggested he buy a whole SCOOTER = lambretta ... not a lambretta engine for his vespa

And my spidey senses are tingling that the OP has an asian bike and the engine is probably held together with chewing gum, and the mechanic doesn't want to bother. ( and i certainly don't blame him )

Why else would he suggest that he either buy a new engine OR a new scooter?
+1 I think we all had that feeling.
nothing at all
Joined: 14 Nov 2008
Posts: 9657
Location: westla
Mon Jan 26, 2009 11:43 pm quote
i just thuroughly read your post.

yes,he wants you to buy a lambretta-or buy a stella engine.

so you tell him you want a good price on the lambretta and then drive that other bike off a bridge(you got great bridges to choose from-manhatten is cool)

i would'nt ride a bad bike anywhere around where you live-great way to get yourself killed.

post pics of your new lammy-quick before some one else gets it.
Addicted
'60 VS5, '63 Li 150 Special, '07 PX125
Joined: 16 Aug 2008
Posts: 836
Location: Seoul & Jeju
Tue Jan 27, 2009 9:23 am quote
Heh... OK, I guess I picked the wrong way to read it. Still, if someone says "new Lambretta" these days it can unfortunately mean this:

http://lambrettausa.com/default.aspx
Banned
Joined: 27 Sep 2007
Posts: 1186

Tue Jan 27, 2009 1:59 pm quote
can we get pics of this bike?
nothing at all
Joined: 14 Nov 2008
Posts: 9657
Location: westla
Tue Jan 27, 2009 8:38 pm quote
woh,now i think i read it wrong. he he !

he does say "new lambretta"

you see,i hear lammy and my brain gets mushy.
Lurker
65' Vespa 150cc
Joined: 25 Jan 2009
Posts: 3
Location: New York, NY
Tue Feb 10, 2009 9:11 pm quote
Sorry about the delay guys. I thought I posted a reply from my mobile but it did not go through..

So, you got me, it's an Asian bike. However, I have been riding it for a long time and before you say anything, let me say that it ran great until now.

The locking up occurs when I'm on the open road, with the throttle all the way or almost completely open. The sputtering, it's too inconsistent to point out the conditions or reasons. I've changed the plugs, each time they look fine. I've also found myself cleaning out the pin type thing in the carb, you know, with the little pin sized whole fairly often. But even after it's clean, it still acts up. I've also, checked my mixture and use a measuring cup for accuracy. Also, I've had it looked at by many mechanics, none have an answer. Could there be issues with particles in the tank?

I will try to get my hand on some pictures. I put it away for the winter and it's a ways away.

ps: The mechanic suggested a NEW Lambretta bike OR a Stella replacement engine haha

Thanks!
Addicted
not-so-normal
Joined: 23 Jan 2009
Posts: 759
Location: Batavia
Tue Feb 10, 2009 10:33 pm quote
Re: OLD 65' VESPA 150CC ENGINE TROUBLE
336 wrote:
I have a 65' Vespa with a 150CC, I have been having serious engine trouble, several times a month. A guy over at the shop said I should consider a new Lambretta or Stella engine, thoughts? Problems range from locking up at speeds over 40mph (specifically when traveling at this speed for more then a minute), sputtering at any speed (when it gets warm), to just straight out shutting off. Being that I ride the bike in Manhattan and over bridges, it gets scary.

Any thoughts? Thanks
I guess the problem is on your cylinder
you must be oversize, maybe surface inside cylinder scraggly/tapering
hence if heat happened expansion of ring piston. As a result, friction among moment cylinder and piston work to become weight, finally ring become to stuck.

well my english not so good... I hope you understand
Moderator
1962 GS160mk1, 1963 GS160mk2, 1965 SS180, 1974 Rally 200, wife's LI150
Joined: 05 Mar 2007
Posts: 6971

Wed Feb 11, 2009 5:38 am quote
Agreed with Veloce75 ...sounds like you're beginning to soft seize on these long rides.
Lurker
65' Vespa 150cc
Joined: 25 Jan 2009
Posts: 3
Location: New York, NY
Wed Feb 11, 2009 12:41 pm quote
What's the best solution? A new engine? If so, what should I be looking at? Where can I get a good deal? What do you think it would cost? At this point I think I'd rather just go with the easiest, safest solution.
Ossessionato
ET2, PX150
Joined: 15 Jun 2007
Posts: 3410
Location: Denver CO
Wed Feb 11, 2009 12:51 pm quote
Quote:
At this point I think I'd rather just go with the easiest, safest solution
Safest=new bike. It would be cheaper (in the short run) to toss a new engine in but I get the feeling that this will be the first of many costly repairs on something that is frankly just not worth the effort.
Moderator
1962 GS160mk1, 1963 GS160mk2, 1965 SS180, 1974 Rally 200, wife's LI150
Joined: 05 Mar 2007
Posts: 6971

Wed Feb 11, 2009 4:43 pm quote
I mean, it could be something simple like you're jetted too lean. Potentially the bike could be fine if you fix the carb.
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