My car is hard to start after sitting in the garage for a week or more. I dont drive the mini often especially been raining and winter. I disconnect the battery and everytime I start the car it cranks but wont fire.
I can hear the fuel pump priming.
There's a good fat sparks on all leads.
Newish spark plugs (but need to check if its fouling or not)
Newish battery
New alternator
Pulsar Dizzy

Eventually after a few tries the car will start and run great.
If I use the car every day or every other day it starts fine.

Is this just normal or what do I need to check?

Thanks in advance.