Issues starting when cold

[Guest]

So I continue to have Issues! But things are getting better. Now the bike won't start in the morning unless I pop start it. Choke is fully engaged, otherwise it runs like a champ. I'm not happy with how the boots sit on the airbox side but I've tested them with starter fluid with no results. Idle fuel screw set to 2.5 turns out. Starts great once it's warm, so my thought is it's not getting rich enough for effective cold starting. Any help would be appreciated! Btw valves are next on my list , could they be causing the issue? Bike is a 82 750t

[hannibal]

From what I've read, correctly adjusted valves are very important for cold starting.

[Kman123]

Ok I didn't know that will try to do them this weekend

[tom203]

"Starts great once it's warm, so my thought is it's not getting rich enough for effective cold starting. Any help would be appreciated! Btw valves are next"

valve check is a must.... then suspect the small passage that runs from bottom of each fuel bowl up to enricher system, as it often gets clogged

[Steve]

Three things caught my eye.

1. I will confirm that tight valves (especially the intakes) will cause hard starting when warm.

2. Your "idle fuel screw" is the PILOT SCREW, according to Suzuki. Most of us call it a "mixture screw" because it controls a mixture, not just fuel.

3. Full "choke" might not be the best setting. Right after starting, slowly move your lever toward the OFF position, see if there is a spot where the engine speeds up a bit, then starts to slow down. Note that faster speed position, use that to start the bike, instead of FULL.

When you adjust your valves, be sure to use the correct procedure for camshaft positioning. It has also been suggested that you use two feeler gauges to check both valves at the same time. This will prevent the rocker arm from tipping sideways a bit, giving you a false reading. Others have mentioned that if your rockers are tipping that far, valve adjustment might be the least of your problems. I do it for peace of mind anyway.

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