contractor20
Cruisin' Guzzisti
Have been busy preparing for a new Kitchen since the Yellow Ducati and the Motley T3 had simpathetic ignition failures on the way home from an abreviated tour of Tasmania in late February. One of the expensive and unavailable ignition modules for the Duke died along with the pickups so we limped on to the ferry and got to a dealer in Melbourne for a diagnosis and a long wait for parts.
Pick ups arrived but no module and no chance before July!!!!
To be perverse supply chain crap happens to other Marques.
(Update::It was the other way round so obviously this mob dont know their arse from ......... :angry: :angry: :angry:
It's coming into winter so Jenny is not to concerned but.....
As for the guz the 25 years old Dyna 111 died on one channel after dropping off the Duke so I thought we could plonk home on one pot but the old girl decided otherwise and started to loose what little power was left and then developed a death rattle so rang the rescue squad {son}
Have only just gotten around to having a look at things and this is what i found;
Things had gotten very hot in the combustion chamber,
Plug was the cleanest id ever seen it,
Base gasket had started to break up,
Head gasket had metal rim burnt away and blown through to the inlet manifold and melted it,
Rough fragmented texture to the chamber on the inlet side in the squish zone,
Two small (3-5mm) burn/melt spots on edge of piston,
No damage to bore
Hairline crack between valve seats.
Fresh rebuilt everthing motor 10,000kms less on barrels and heads
Standard 950 round barrel motor running Roper prepped heads and tensioned twice checked , squish down to 1-1.2mm, hand cut .4mm base gaskets, 30mm Dell' pumpers on plastic inlets, hours and hours spent on jetting to get rid of flat spots.
Bike only travelled about 25 kms on one cylinder two up
inch: inch:
So ...????
Could using wide open throttle(or nearly) have caused this due to different air flow characteristics or is this more likely due to detonation or vice versa (Ie did the leanness cause the detonation)
Carb jetting is standard for a cal 11 G5 motor K23 middle pos 125 mains 58 pilots pilot emulsions removed 50/3 slides K&Ns.
Please keep comments about stupidity to a minimum but any thoughts on others causes welcome
Pick ups arrived but no module and no chance before July!!!!
To be perverse supply chain crap happens to other Marques. (Update::It was the other way round so obviously this mob dont know their arse from ......... :angry: :angry: :angry:
It's coming into winter so Jenny is not to concerned but.....
As for the guz the 25 years old Dyna 111 died on one channel after dropping off the Duke so I thought we could plonk home on one pot but the old girl decided otherwise and started to loose what little power was left and then developed a death rattle so rang the rescue squad {son}
Have only just gotten around to having a look at things and this is what i found;
Things had gotten very hot in the combustion chamber,
Plug was the cleanest id ever seen it,
Base gasket had started to break up,
Head gasket had metal rim burnt away and blown through to the inlet manifold and melted it,
Rough fragmented texture to the chamber on the inlet side in the squish zone,
Two small (3-5mm) burn/melt spots on edge of piston,
No damage to bore
Hairline crack between valve seats.
Fresh rebuilt everthing motor 10,000kms less on barrels and heads
Standard 950 round barrel motor running Roper prepped heads and tensioned twice checked , squish down to 1-1.2mm, hand cut .4mm base gaskets, 30mm Dell' pumpers on plastic inlets, hours and hours spent on jetting to get rid of flat spots.
Bike only travelled about 25 kms on one cylinder two up
inch: inch: So ...????
Could using wide open throttle(or nearly) have caused this due to different air flow characteristics or is this more likely due to detonation or vice versa (Ie did the leanness cause the detonation)
Carb jetting is standard for a cal 11 G5 motor K23 middle pos 125 mains 58 pilots pilot emulsions removed 50/3 slides K&Ns.
Please keep comments about stupidity
to a minimum but any thoughts on others causes welcome