I decided to put this here rather than the ForSale section as this post is about information more than anything else and may help a lot of RX-8 owners long term.
As most of you know there has been a problem with RX-8\'s non starting at times due to flooding,this is a problem that has affected Rotary\'s for many years but it is a problem that can be cured by using a combination of Spark Plugs of different heat ranges.
Please read our Mazdarotaryclub FAQ on Spark Plugs for a full explanation of how and why plugs affect these cars.http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=264&highlight=bur9eq
As a distributor for NGK I have worked closely with NGK technical discussing this problem in depth for weeks because I had realised that RX-8\'s only come fitted with \'\'cold\'\' plugs, i.e. of the \'9\' heat range and this was the most probable cause for the non starts that have occurred, especially knowing that a lot of the time flooding occurs if the car is not warm up and is turned off very soon after staring when the vehicles cold start system is still in operation and leaves too much fuel in the combustion area and the colder plugs are unable to fire this \'\'wet\'\' mixture.
After much research with NGK they have now found a Spark Plug in the \'\'7\'\' heat range that can be fitted into the Leading Side of the engine ( standard \'\'9\'\'s stay in the trailing side) , we are now in a position to supply these plugs to our customers safe in the knowledge that these have been tried and tested in many many Mazda\'s without any problems and are now available from ShyAuto.
This is written in the hope the above will help these cars not only now but also as they become older and is in no way meant to be detrimental to Mazda as many many cars on the market have a small Achilles heal, but with this addition to your engine and information hopefully this problem will be severely alleviated, and enable RX-8 owners to enjoy their cars all the time, because they won\'t have to worry about a non starting situation occurring.
All the best Clive