12-06-20, 04:52 AM
(11-06-20, 11:09 PM)Rich74 link Wrote: Solved the no 3 cylinder problem of not getting hot. I balanced the carbs and that solved the problem. I now have another problem of the engine stuttering at 6-7000 revs. I have ordered a fuel filter, as I don't know when that was last changed and I am thinking that the air mixture screws may need a little tweaking. Aftermarket downpipes and exhaust can have been fitted. I have them at 2 turns out, so will try them at another 1/8 -1/4 of a turn out and see how that goes. I am pretty sure this is a fuel problem on the pilot side.
The pilot circuit stops operating at about 3k, spluttering 6-7k is main jet circuit. Firstly check you don't have a cracked plug, pop up the tank in a darken garage or out side at night, start the bike and look for arching in the plug wells, leads and caps. You mention AM downtubes and end can, some owners make the mistake of playing with carb needle height and main jets and removing air filters. Fazers need nothing doing to the fuelling when adding the above mentioned even a high flow filter, but there must be a filter, fitting all the above cleans up throttle response low/mid range. Check there is an air filter and it's clean, also check all the needle heights and jets are standard.
We can go from there if you find all of the above is fine.
Later