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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Fuel and Carb Settings
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<blockquote data-quote="Bobv07662" data-source="post: 123972" data-attributes="member: 4641"><p>Today was the day to check the ATD with the mag synchronizer and got a good result. Timing on the rear cylinder starts at 3' BTDC and is all in at 38' BTDC, the suprising thing is that the front cylinder was almost exactly the same at 2 1/2' BTDC and is all done at 37 1/2 BTDC. Close enough for government work. I am running the bike on non-oxygenated, leaded 110 octane fuel so I don't think I will need to back the timing down to 34-35 .</p><p> The banging continues in the silencer but is quite reduced after fresh plugs. I rode the beast almost 10 miles this evening and it seemed to be getting better as it warmed up. 80'F temperature here so it wasn't too hot out.</p><p> Even after riding the 10 miles the oil tank was not warm yet. These are some cold blooded machines!</p><p>Running Champion N5C plugs to start with but while learning the bike I did foul up the first set. </p><p> Any suggestions for plugs and diagnosing the banging in the silencer? It is the straight through type muffler. Since it fouled a set of plugs running around the shop, I'm hesitant to richen the pilot settings, but I believe it ran a bit smoother with the air levers pulled on a small amount. Perhaps different plugs might make a difference? Also, is any sealant required where the carbs clamp on the intake spigots?</p><p> Ahh yes the clutch...a bit grabby but much more controllable after increasing the play in the cable to 3/16.</p><p> Any suggestions would be appreciated. Thanks for all the help so far!</p></blockquote><p></p>
[QUOTE="Bobv07662, post: 123972, member: 4641"] Today was the day to check the ATD with the mag synchronizer and got a good result. Timing on the rear cylinder starts at 3' BTDC and is all in at 38' BTDC, the suprising thing is that the front cylinder was almost exactly the same at 2 1/2' BTDC and is all done at 37 1/2 BTDC. Close enough for government work. I am running the bike on non-oxygenated, leaded 110 octane fuel so I don't think I will need to back the timing down to 34-35 . The banging continues in the silencer but is quite reduced after fresh plugs. I rode the beast almost 10 miles this evening and it seemed to be getting better as it warmed up. 80'F temperature here so it wasn't too hot out. Even after riding the 10 miles the oil tank was not warm yet. These are some cold blooded machines! Running Champion N5C plugs to start with but while learning the bike I did foul up the first set. Any suggestions for plugs and diagnosing the banging in the silencer? It is the straight through type muffler. Since it fouled a set of plugs running around the shop, I'm hesitant to richen the pilot settings, but I believe it ran a bit smoother with the air levers pulled on a small amount. Perhaps different plugs might make a difference? Also, is any sealant required where the carbs clamp on the intake spigots? Ahh yes the clutch...a bit grabby but much more controllable after increasing the play in the cable to 3/16. Any suggestions would be appreciated. Thanks for all the help so far! [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Fuel and Carb Settings
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