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Old 11-21-2012, 01:08 AM   #71497
Test Pilot
Nullarbor63's Avatar
Joined: Mar 2009
Location: Western Australia
Oddometer: 23
My friend, I come back to the forum after a break, to read your post with fresh eyes, and my first impression is that you seem to be hung up on the concept of an electrical fault (understandably). Might I offer a different idea? I have a fair bit of history with four valve 250 and 500cc Honda singles and they had a common fault in that the cylinder head would crack between the spark plug hole and the exhaust valve seat. When they were cool this would not affect the starting of the bike, but as it heated up (especially under load and heat) the crack would expand, the cylinder head would lose compression and the bike would stop. The only foolproof way of checking for this condition is to remove the head, decoke and polish the combustion chamber and look for the crack. On clean aluminium the crack would be quite obvious. I don't know if DRs are susceptible to this, but it's a thought, and seems to fit your symptoms. I've just finished Ted Simon's 'Jupiters Travels'. Good luck with your trip.
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