Pre Ignition or Pinking

Restoration forum Bmwbike.com
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Dave S
Posts: 2
Joined: Thu 17. Sep 2009, 21:36

Pre Ignition or Pinking

Post by Dave S » Thu 17. Sep 2009, 21:44

Hi All, I have just bought a 1973 R60/5 with 44,000 miles on the clock and it suffers from 'Pinking' or pre Ignition quite badly. Accelerating hard or opening the throttle on even the slightest hill caused pinking? I have set the timing correctly, fitted new plugs, points and condenser but the pinking persists. I am running of regular unleaded fuel here in the UK. Any ideas? Also does anyone know where I might find lower compression pistons for an R60/5? I have heard that 8.0:1 are available? Cheers, Dave S.

yjr32
Posts: 17
Joined: Mon 15. Sep 2008, 05:51

Re: Pre Ignition or Pinking

Post by yjr32 » Wed 23. Jan 2019, 06:54

Try retarding the ignition timing a little and see if it would help without any adverse effect.

Janardhana Rao.

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