Re: poor top speed
Posted by hendred on Oct 28, 2017; 4:47pm
URL: http://silk-motorcycles.221.s1.nabble.com/poor-top-speed-tp5001717p5001745.html
Your carb jetting is close to the settings in the Technical section. Reading this thread again I thought I would throw in a slight curve ball. The symptoms you described have been seem on bikes with a weak magneto. The high combustion pressure at higher throttle openings snuffs out the spark, close the throttle and the spark recovers. What ignition system are you using? The original Lumenition or a replacement? Are the coils the original Lucas or replacements? Plug leads and caps in good condition? My Lumenition system is sensitive to low battery voltage, are all the electrical connections good and clean?
Just some thoughts