Out and About on your Laverda.No bull,Just photos

Took the 750 SF out yesterday evening, now with SF2 engine, 40mm headers and probably the last new set of slash cut 40mm silencers.
Ayoto grips isolate vibrations, no numb fingers.
Not original, but it works very well!

Gerald
 

Attachments

  • Neckar.jpg
    Neckar.jpg
    40.9 KB · Views: 31
Gerald said:
Took the 750 SF out yesterday evening, now with SF2 engine, 40mm headers and probably the last new set of slash cut 40mm silencers.
Ayoto grips isolate vibrations, no numb fingers.
Not original, but it works very well!

Gerald
Click to expand...
I hope that it's not like this one.
Arwed's

1688027874560.png
 
Paul Marx said:
I hope that it's not like this one.
Arwed's

View attachment 83509
Click to expand...
Noted the cracking appears to originate at the welded coupler riser, well known in welding circles the effect of welds and substrate material ( metal ) altered physical properties. Very illuminating when i did many welding courses ( acceptable skills yet to be realised ) material science pre and post welding application(s). The notion of "just weld it up" and the subsequent cracking on either side of the repaired weld, was explained to me.

What may possibly have exacerbated the cracking, hydrogen imbrittlement, or lack of reduction by oven warming post electroplating ( not certain as if this is a stainless steel header or mild steel ), the yellow tinge can suggest either metal as base material.
j
 
Last edited:
iis_iis said:
What may possibly have exacerbated the cracking, hydrogen imbrittlement, or lack of reduction by oven warming post electroplating ( not certain as if this is a stainless steel header or mild steel ), the yellow tinge can suggest either metal as base material.
j
Click to expand...
The 40 mm headers with cross section tube are mild steel with chrome. I was told that each set is matched left to right, as they are built on a bike with large valve engine.
 
Four cylinder bikes often have effectively two 2/1, cylinders 1&4 and 2&3 each with it's own. They sometimes then had both those into effectively another 2/1. Very effective exhaust system. A 180 triple could have 1&3 into a 2/1 and cyl 2 out on it's own.
 
Tippie said:
Four cylinder bikes often have effectively two 2/1, cylinders 1&4 and 2&3 each with it's own. They sometimes then had both those into effectively another 2/1. Very effective exhaust system. A 180 triple could have 1&3 into a 2/1 and cyl 2 out on it's own.
Click to expand...

Give me a few days to decipher that ….
 
You must log in or register to reply here.
Back
Top