Spark plug question

[Supra4ever]

Does spark plug has anything to do with trouble starting?

I am currently using 6097 copper spark plugs, I noticed when the spark plugs were fresh, car would start instantly each and everytime includings morning start.

I am currently experiencing trouble staring in the morning, usually I only get 1 click, it takes 2~3 trys to start. Is this caused by starter or spark plugs?

[Brown Duckz]

Your tune could have deteriorated them.....

[DaveH]

Colder plug generally will foul much quicker, and a overly rich tune will shorten their life span as well. How long have the plugs been in the car?

[Supra4ever]

Colder plug generally will foul much quicker, and a overly rich tune will shorten their life span as well. How long have the plugs been in the car?
The copper 6097 spark plugs has been on the car for approximately 600~700 miles. I am running Lexus AFM and hks bov venting to atmosphere.

A/F ratio reading from my 02 wide band gauge at cruising speed/off boost is usually around 13~14.1. The A/F radio usually dip down to 11.7~12.5 after blow off.

Should I try hotter spark plugs? anything you would recommend? I am running 1bar of boost on pump gas.

[Brown Duckz]

Should I try hotter spark plugs? anything you would recommend? I am running 1bar of boost on pump gas.I wouldn't suspect hotter plugs are what you need.............. did you run on them untuned for any long period of time?

[Supra4ever]

did you run on them untuned for any long period of time?
No I did not, just that I did pop the IC coupler once with this set of spark plugs. I am getting back fire more often now than when the spark plugs were fresh.

My original question is that does fouled spark plugs really affect the morning start by that much? I don't want to replace the starter than later find out it is just the spark plugs.

Thanks

[dejacky]

maybe spark plug gap needs to be adusted? :runaway: