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Discussion Starter · #1 ·
I have picked up 2 MT07s in Australia, a 2017 with a good engine and a 2021 with damage to its engine case.
spent 5 days on and off fitting the 17 engine into the 21. Went to fire it and it cranks but backfires every 4 or 5 revolutions. Dash works, oil pressure light goes out when cranking, both engines was working in its original chassis so no idea why it would not work now.
(cracked engine external case was reason for change)
been over everything but cannot see why it will not start, I have left the complete wiring intact in the 21 and basically sliped the 17 engine in.
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