Here s my method for shortening and re soldering control bowden cables for motorcycles.
Soldering cable ends bicycle.
When i travel and have to.
I just dip the cable in the flux then press the solder against the hot soldering gun until a little drop melts on there then press the melted solder against the fluxed cable end and it sucks the solder right up with a delightful sizzle.
Slide your clean end fitting onto the.
I m running my soldering iron at it s max of 850 degrees f mostly because i m impatient but you should be fine using a much lower.
Dip the tip in some soldering flux not too far in as the solder will flow as deep as the flux goes heat the cable starting at just the tip since that is really where you want the majority of the solder to penetrate anyway add solder a little bit at a time so the end of the cable doesn t get bulky with solder.
A better way to terminate your bike s shifter and brake cables.
The way i was taught didn t involve heating the cable at all.
Saab2k when i build a bike the cable ends are done the traditional method eg fit a crimp to fit and pinched once in the middle with a dull set of dikes.
Step by step soldering clamp or place the cable where can sit at least a few inches above your working surface.