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Author Topic:   burned pistons
36mini
Dirt Newbie

Total posts: 3
posted November 07, 2004 09:38 AM  
what are the most common reasons for burned pistons

Over-Achiever
Dirt Newbie

Total posts: 4
posted November 07, 2004 10:59 AM  
Wrong mixture from carb, vacuum leaks at intake gasket or carb base gasket, not high enough octane or too much compression, low on oil, just to name a few.

O/A

racerman707
Dirt Freak

Total posts: 374
posted November 07, 2004 01:20 PM  
Timing could be too high too.

Trapper
Dirt Full Roller

Total posts: 64
posted November 11, 2004 07:46 AM  
most often it is a lean burn condition where one cyl. runs leaner than the rest. typically the result of a vacuum leak at intake or carb. its happened to me when a carb stud was loose at the intake manifold and was leaking when going into turns hard and would clear up on straight away when not getting bumped around. Hope this is some help

TRAP

pepsi77
Dirt Newbie

Total posts: 3
posted November 30, 2004 10:18 PM  
if you have check all leaks and things check timing if all comes out ok then put new set of plugs and race your heat race after you pass the checker flag turn off your motor and have the truck or atv push youin then check your plugs....1)if black spots ( at near the tip of the plug) means timing too high 2)too white too lean go up 2 jets size...untill u have reach just almost light tan coloron plugs u have just right mixer of air/fuel hope that helps

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