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Spark Plug Gap

Joined Mar 2011
40 Posts | 1+
Colorado
Anyone know what the gap is supposed to be? I can't find much in the manual other than to replace at 30 hours.

2010 FE450
 
willmia said:
What are the consequences to too small a gap? Too large?

if gapped slightly wrong will cause misfires, probably 10-20/1000 rpm or so and/or maybe hard starts,or/and power loss, gapped more wrong, more hard starts and more misfires, etc. etc. till it just wont start or restart or run like crap....dwell time, preignition, detonation, blah blah blah... gap them to spec and if you have to make a choice then round up, but too much can cause the above....
 

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