Another starting problem question, sorry.

[Guest]

If my GS650GT has been left for a week or more, she is a pig to start, I pull the choke out, press the button and she fires into life, then she dies and it takes ages to get her going again.
If I go to start her today, after I started her up a couple of days ago, I pull the choke out, press the button and she fires up and runs sweet.
She has got a new battery, carbs have been stripped and cleaned (new 'O' rings fitted as well), pistons re-ringed and cylinders honed, new valve stem seals and valve shims checked (130-140psi compression). New R/Regulator, new spark plugs (all 4 are a mid brown colour), stock Air Filter, Motad 4-1 exhaust, new fuel & vacuum lines as well as pet-cock re-build (tank clean and their was no deposits on the internal pet-cock filter).

Before I try to start her after she has been standing should I put the fuel tap to prime for 30seconds, then start her and switch the tap back, would this work/cause any problems?

[GS/GR PAUL]

Often when I have left my bike for a few weeks/months I put it on prime for about 20 seconds.

[tkent02]

That's what prime is for.

[Steve]

I don't usually have that much fuel loss from the bowls in that short a time, but as said, "that is what PRIme is for".

Turn it to PRIme while donning your helmet, start the bike, put the petcock back to RUN, then ride.

.

[Charlie G]

Anymore than 4 days I put it on prime for a minute or two.

cg

[tkent02]

How fast it evaporates depends a lot on the climate and the fuel formulation.

[UK-GT]

Thanks for the info. Learn something new everyday. Now, can I leave her alone for over a week to try this out, probably not. Mind you I am fitting new brake lines, replacing the fork oil and painting the calipers next weekend as its a bank holiday, mind you I have not told the wife yet, she might have an idea what I have got planned though as she bought me the brake lines