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Old 02-25-2010 | 11:37 AM
  #20  
jaka
 
Joined: Dec 2001
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From: Upplands Vasby, SWEDEN
Default RE: O.S 91 four stroke starting problems

Hi!
Most of the time newbies have trouble starting their engines is because they don't use enough glow power!

Use an automatic glow driver powered by a 12V 10-12A motorcycle battery!
Do not rely on small NiCad 1,2v glow drivers.

The glow plug should glow yellow white and not dull red or dull orange!
Use an electric starter!
Use a 14x6 or 15x4-15x6 APC prop.