- Joined
- Dec 28, 2009
- Messages
- 5,467

Interesting.I don't use any silencer pipe clamps
Interesting.I don't use any silencer pipe clamps
IMHO the "looseness" at that joint cannot be a good thing.I don't use any silencer pipe clamps
Can only speak from experienceIMHO the "looseness" at that joint cannot be a good thing.
What have you against rattles and backfires?IMHO the "looseness" at that joint cannot be a good thing.
No rattles or backfires hereWhat have you against rattles and backfires?![]()
Lots of black soot on the head pipe?No rattles or backfires here
No popping on deceleration either or broken silencers or down pipes
Ha ha noLots of black soot on the head pipe?
Ha ha no
No black soot ,I run my commando as lean as a Japanese bike
Mikuni TM 40 flat slide pumper
It's set up with a narrow band exhaust gas analyser
Plugs come out light brown I keep as close to 14.7 stoic as I can
I welded it in the left hand down pipeBaz, can I ask where you placed the threaded bung for the oxygen sensor in the header pipe please.
I have a dual read out wide band set and should get some more fittings to weld into an old set of headers.
Maybe Commando's need a short section of flexible tube between the header and muffler like Sunbeam twins. (The first Isolatic with head steady equipped bike from 1946.)
I welded it in the left hand down pipe
Instructions said it should be within 200 mm of the head
I would prefer a dual channel unit but that's all I had
Removed that washer and placed it as you suggested. Thank you.On a different subject, I would question the need for the washer between the swingarm axle plate and the caliper plate (yellow arrow) especially if there is any trace of a gap where the green arrow is?
![]()
There's no washer in the parts book and my Mk3 doesn't have or need a washer at that location as it would put the caliper plate and thus the caliper out of alignment with the disc.
Note that the Mk3 shock eye lower mount sleeve should be wider than the upper (see Mk3 manual section F5, however, the dimension in Fig. F14 is incorrect and should be 0.942") so in my opinion, the washer would probably be better placed between the axle plate and the non-standard shock also the same on the drive side as without additional spacer washers my apparently pre-Mk3 Hagon shocks wouldn't be parallel but would lean away from each other.
It does fit pretty well.That'a a nice bend around the primary..