Signs of a badly adjusted IGNITION TIMING

Tags: Ignition Timing
Author: Thomas R.

A question I get asked frequently is the following. “how to know if the Puch ignition timing is set too late or too early (Bosch point ignition)?”. Well, on this page we give you a clear answer.


    If your timing is set too late you’ll recognise some of the following the issues.

  • low on torque.
  • your exhaust will be hot
  • the chrome of the exhaust turns blue
  • there is not enough heat given in the cylinder
  • the power at high RPM is rather good
  • pops coming from your exhaus
  • If your timing is set too early you should recognise one of the following symptoms.

  • idle more poorly
  • makes more torque
  • sometimes a bit less high end power
  • hotter cylinder and colder exhaust
  • knocking is more common with timing set too soon
  • pops coming from your carburator

Some good advice from our friend Nikolaj is that in general, a Puch (stock) should never spark before 2,0mm before top dead center.

common problems and solutions

Here we will discuss some common issues and how to solve them. If you have an issue that needs to be solved, send us an email to