Hello,
The RGS 1000 workshop manual says that PM-mark should align when cyl 1 is at top dead center, static timing.
It also says that at 4000 rpm the A-mark (32 degree) should align, dynamic timing.
How many degrees the advance should be with BTZ at idle? (Original timing at idle?)
I have changed my system from BTZ to Ignitech for two years ago. I have used 7 degrees at idle on it, but have had some problems when tuning the carbs. At 7 degrees it idles extremely smoothly at every other condition, but quite rough, when humidity is quite high. At 7 degrees the slides are very low.
The static timing is checked very carefully with dial indicator, and I have adjusted the Ignitech that the degrees on it agree to real degrees on crank with two different strobes. All of the cables and connectors on ignition system are new, definititely has a good contact all the time, also the pickup cables and connectors are new. The bike actually had the same problem earlier with BTZ. The carbs are rebuilt very carefully, every part of standard value (for RGS), except the jet sizes, which are tested by experiment. There is also no air leaks and the carbs are carefully balanced. Air filter is in very well condition. The engine is very clean also inside, also the intake runners, valves and combustion cambers. The valves are correctly adjusted. The balance hoses between carburators are also in very good condition. There is no dirt on fuel system.
I have some doubts which may cause this problem:
-Wrong ignition timing, slides are on very low position on idle.
-Wrong idle mixture screw settings. Here in Finland it is so cold even if I ride the bike for a long time, it won't heat up very well. I have the oil cooler covered by cardboard, full or partially even most of the summer. Therefore the mixture may be too rich even when adjusted how the RGS manual says.
I'm also mounting a mixture sensor and meter at the time, hoping they will help me on tuning. Any thoughts about how much the idle advance should be? Or any thoughts about something else?
The RGS 1000 workshop manual says that PM-mark should align when cyl 1 is at top dead center, static timing.
It also says that at 4000 rpm the A-mark (32 degree) should align, dynamic timing.
How many degrees the advance should be with BTZ at idle? (Original timing at idle?)
I have changed my system from BTZ to Ignitech for two years ago. I have used 7 degrees at idle on it, but have had some problems when tuning the carbs. At 7 degrees it idles extremely smoothly at every other condition, but quite rough, when humidity is quite high. At 7 degrees the slides are very low.
The static timing is checked very carefully with dial indicator, and I have adjusted the Ignitech that the degrees on it agree to real degrees on crank with two different strobes. All of the cables and connectors on ignition system are new, definititely has a good contact all the time, also the pickup cables and connectors are new. The bike actually had the same problem earlier with BTZ. The carbs are rebuilt very carefully, every part of standard value (for RGS), except the jet sizes, which are tested by experiment. There is also no air leaks and the carbs are carefully balanced. Air filter is in very well condition. The engine is very clean also inside, also the intake runners, valves and combustion cambers. The valves are correctly adjusted. The balance hoses between carburators are also in very good condition. There is no dirt on fuel system.
I have some doubts which may cause this problem:
-Wrong ignition timing, slides are on very low position on idle.
-Wrong idle mixture screw settings. Here in Finland it is so cold even if I ride the bike for a long time, it won't heat up very well. I have the oil cooler covered by cardboard, full or partially even most of the summer. Therefore the mixture may be too rich even when adjusted how the RGS manual says.
I'm also mounting a mixture sensor and meter at the time, hoping they will help me on tuning. Any thoughts about how much the idle advance should be? Or any thoughts about something else?
