Miata Mailing List: December 1992, Message #125
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   From: (none)
Subject: Throttle and Clutch
   Date: (none)

I've had my Miata for a little over 3 years but do not have much
milage (12,800).  I recently drove a 1993 Miata and noticed some
subtle differences in the throttle response and clutch uptake.  These
may not be differences in design but that my car needs some adjustment
or other work.  First, there is a very slight throttle hesitation from
the idle position.  I changes my spark plugs about 6,000 miles ago to
Splitfite plugs and noticed an improvment in throttle response at that
time.  The plugs now still look O.K.  Does anyone have any suggestions?  
The dealer, who usually knows nothing, said that there is no problem.  
The second problem is a slight hesitation at the beginning of clutch 
engagement when starting off in 1st gear.  Otherwise the clutch works 
fine.  Can it be adjusted or is it the beginning sign of clutch wear?  
I am asking both questions because I plan to install a BBR turbo and 
am wondering whether these two problems can be adjusted during the 
installation (the engine and flywheel are removed).  If it is early 
clutch wear, perhaps the clutch should be replaced since
the BBR turbo Miata has about 150 horsepower and 150 ft-lb of torque.

Thanks for any suggestions and best wishes for a new year to all
on the Miata List.

Herb Samuels