the engine hard to start in warm days

[donvito7]

Any idea why my bike's engine has difficulty to start when we have a hot day?
At the morning and at the evening starts fine but when I park it in a middle of the day and sun is burning the engine does not want to start.

At thirst I thought the sparks must be flooded somehow but now I am thinking if the petrol did not evaporated and pomp cant supply it.

When the engine is hot after riding there is no problem to start it up.

I do not know. Did you have similar problem or do you have any idea?

Yamaha Fazer 600 2002

[ThunderGuts]

Do you have the same issue when you try to start the bike with the engine hot, e.g. mid-ride after having just refuelled?

We will need more info anyway, bike model, year etc.. and where in the world you are too as some model specs vary by country for the same year.
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TG.

[Mysteriass]

If the bikes' got sensors, an ECU and it's parked in the sun then the computer is assuming from the sensor information that the engine is already warm and providing the mixture for a warm engine.

Park it in the shade.

[Nobby the Bastard]

Nope, nope nope. Sensors will have the temp of.the engine so parking in the shade will make.no difference.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[Mysteriass]

Used to be a common issue on old YBR's that they'd have problems like this if parked in the sun. As it's a much copied bike then that issue could have transcribed itself into some chingchong models.

[Nobby the Bastard]