Exhaust issue would not be resolved by buying another

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
simonwwfc
registered user
Posts: 465
Joined: Mon Nov 12, 2012 10:28 pm
Contact:

Looks like my issue is having a muggelo kit and having to use the longer exhaust stub that's putting it all out of line . Making bad fitment . I thought that if I bought a franspeed or Jl this would resolve it but it seems as this isn't the case :cry: I'd only end up with same problem so to resolve the issue it seems as il have to get stub cut and re welded or barrel machined

Image

Image

Image
User avatar
DigDug
registered user
Posts: 788
Joined: Wed May 02, 2012 1:00 pm
Main scooter: Lambretta
Location: Stroud
Contact:

The shorter stub is for a TS1 type exhaust port.

Don't quote but all of the stubs I've seen for "standard" oval ports are longer.
Did you have to do that?
User avatar
Muttley McLadd
registered user
Posts: 1496
Joined: Wed Jan 07, 2009 6:32 pm
Contact:

This has been discussed before, hasn't it?

If you buy an exhaust that doesn't use a stub, it'd be fine, wouldn't it?
CakeAndArseParty
tonydevon
registered user
Posts: 553
Joined: Wed Jun 08, 2011 12:26 pm
Main scooter: '71 GP125
Location: Northam, Devonshire
Contact:

What you want is a pm tuning. Muggy works really well with it and fit was fine. Full rear boards. The nut on the silencer did just catch but nothing that requires major surgery.
heavy is good, heavy is reliable, and if it does fail, hit them with it!!!
joespeed
registered user
Posts: 740
Joined: Wed Jan 07, 2009 10:57 am
Location: drax,near selby,north yorkshire
Contact:

tonydevon wrote:What you want is a pm tuning. Muggy works really well with it and fit was fine. Full rear boards. The nut on the silencer did just catch but nothing that requires major surgery.

i think that was what was fitted in the first place!
Arcadia
registered user
Posts: 40
Joined: Sun Aug 25, 2013 10:53 am
Contact:

simonwwfc wrote:Looks like my issue is having a muggelo kit and having to use the longer exhaust stub that's putting it all out of line . Making bad fitment . I thought that if I bought a franspeed or Jl this would resolve it but it seems as this isn't the case :cry: I'd only end up with same problem so to resolve the issue it seems as il have to get stub cut and re welded or barrel machined
A couple of days ago they were allegedly the devils work and were all getting sold. :lol:

Today its the Mugello kit and any pipe from Franspeeds to JLs. :?

Turns out the pipe you originally had on worked well and was a great fit. :roll:
simonwwfc
registered user
Posts: 465
Joined: Mon Nov 12, 2012 10:28 pm
Contact:

Look all I'm asking for is a bit of advise on theses exhaust stubs . If u can't give it don't bother with silly comments
Ian Hepworth
registered user
Posts: 50
Joined: Wed Feb 29, 2012 3:35 pm
Contact:

There is an issue with the exhaust flange being done strangely.

If you imagine looking at the fitted engine side on, the exhaust gasket face is 10mm nearer the floor than normal.

The official explanation I've heard for this is to use longer exhaust studs that are less likely to strip threads but of course the knock on effect on exhaust systems is huge.

I've not heard of a pattern as to which cylinders have this feature v1,2,3 or 4 or small block vs big block
joespeed
registered user
Posts: 740
Joined: Wed Jan 07, 2009 10:57 am
Location: drax,near selby,north yorkshire
Contact:

if the mugello exhaust flange sits lower down .why not try to shorten the stub by the same amount to compensate!
simonwwfc
registered user
Posts: 465
Joined: Mon Nov 12, 2012 10:28 pm
Contact:

I've dropped chrome stub off today into garage they are gonna see if they can cut it as short as poss and re weld it . Has andy Francis over come theses issues with his exhaust he is selling for Muggelo
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 0 guests