Re: WEIRD surging 31P677
G'day you blokes,
Well I have continued with trying all suggestions with no success.
After all (not all because I haven't figured the problem it is still exactly the same) attempts and clutching at straws, I sprayed the block with a ceramic engine paint in the hope any porosity might be sealed.
Three solid coats, that were left to set in 4 days of outback sun eg. 38-40C, we refitted the motor with a brand new carb, and still exactly the same.
Is anyone interested in seeing a video of this, of when the motor surges, but when carby cleaner is sprayed under the block the motor runs smooth as....?
ALSO.............apparently this problem has existed since the mower was purchased some years ago and the dealers
just kept finding some other reason for the motor misbehaving, then when warranty had run out, told them to "go away".
ALSO the ID is definitely 31P677 0144 B3.