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Old 04-17-2012, 08:57 AM   #1
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Default How to know when to change out conrods

Hey, How can you tell when you need to change conrods?
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Old 04-17-2012, 10:52 AM   #2
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2 ways...

1) when there is to much play, with a new rod by hand you must feel if it is the rod or the crankpin.

2) after an amount of liters fuel used. There is also a non-visable wear in the rod on molecule level, the material is getting tired and so loosing strenth, thats why to change it from time to time.
This periode is mostly mentioned in the manual.
Speed is only fiction but a 130+km/h MRS4 is for real.
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Old 04-18-2012, 04:16 AM   #3
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Originally Posted by chromie View Post
Hey, How can you tell when you need to change conrods?
What i normally do is;
remove the backplate. put a drop of oil on the crank and conrod and turn a little the crank both ways. When bubbles appear its to much play.
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Old 04-23-2012, 11:28 PM   #4
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after break in completed according to most it is better to change the rod.the break in process really giving stress to the rod, forcing the piston too get through the sleeve. as for me i change the rod after 1 race. usually the 2nd rod will last longer. if you have doubt its better to change than take risk of a blown rod and causing damage to other parts.
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