Motorcycle Questions? Ask a Mechanic.
Hi and welcome to JustAnswer, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.Initially and to avoid asking you to do something you've already tried, can you please tell me what / any and all troubleshooting / specific steps you've already attempted other than the above; "...siphoned out old fuel and put in fresh..."?
Have you considered / tried?
I understand and yes please.
Try 0.5 ~ 0.6 mm
Also check the fuel lines/hoses for possible leaks or even cracks.
If able, remove the air box and filter. In its place cover the air entry with the palm of your hand. Attempt to start. Check if there is strong suction and if your palm would get wet with fuel.
Check/clean the injector.
Perhaps the video HERE may provide insight.
Yes please and would look forward to an update when conveniently able.