My bike has a tough time starting when it hasn't been touched over a couple of house. It usually takes a handful of attempt before it's running. But when the engines already worm I can turn it off/on all day long. So my question is what can I do to make my fist attempt to start my bike the right one, or just easier to start the fist time?

 

Hard starting when cold can generally be traced to fuel and ignition problems. Simple things like replacing spark plugs, replacing the air filter, and or running a can or two of Sea Foam through it. These don't require too much work to do, especially the Sea Foam. Beyond that you're looking at doing a good job on cleaning the carburetors. The choke/enrichment circuits have tiny fuel passageways and get clogged easily, especially if the bike sits for any long period of time.

 

I replaced the sparkplug, all of them spark. Air filter is a little dirty but should still be good. In order for me to start the bike I have to turn it on while raving the engine. Fuel enrichment circuit?

 

Do you get the same result whether you use the choke or not ? If so, then yes that is most likely your problem.

 

I do...

 

Would using sea foam help with this kind of situation? Or putting a higher octane?

 

Sounds like tight valves to me. Compression test will test this, or measuring tolerance.

 

You can check the choke cable slack under the airbox too. It pulls on a bar that sets the enrichment level for the carbs. It is held in place by a screw and a clamp. If there is too much slack, you can move the lever all you want and won't get enough enrichment to start it. The cable stretches over time. You can move the cable housing end to get more movement at the bar. Just make sure you don't pull it too tight or you'll always have it on.

My F2 was always a bear to start in winter on early morning rides.