OK Mark  yes i'll bite the bullet until richard HOPEFULLY  can find out what wrong 
but for me it may be the new motors reqiure more power so a power shortage or it may be that the relay has caused damage to NO.1 ESC as NO.2 WORKS FINE WITH THE BACK TWO MOTORS CRAZY ISNT IT
chris
					but for me it may be the new motors reqiure more power so a power shortage or it may be that the relay has caused damage to NO.1 ESC as NO.2 WORKS FINE WITH THE BACK TWO MOTORS CRAZY ISNT IT
chris

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