1. Home
  2. Carburetor Parts
  3. by Part Type
  4. Idle Mixture Screws
  5. Hitachi Idle Mixture Screw 16-178
Hitachi Idle Mixture Screw 16-178
Hitachi Idle Mixture Screw 16-178

Hitachi Idle Mixture Screw 16-178

Your Price: $4.95
10 x 32 x 1.15"
Part Number: 16-178
Availability: In Stock

Choose Options

*
Write a Review
Idle mixture screw. Compare dimensions to be sure of fitment.

10 x 32 x 1.15"

Adjusting the Idle Mixture Screws

The idle mixture screws only affects idle. They simply control the amount of fuel and air mixture that is delivered at idle.

First run the screws in all the way until they seat, lightly. Too hard and you will damage the screw. Now back the screw out until the specified rpm is achieved. Turning the idle mixture screws clockwise (in) leans the idle mixture. Turning the idle mixture screws counter clockwise (out) richens the mixture.

Turn the mixture screws, alternating between the two in 1/4 turn at a time until the engine rpm starts to drop, then turn them back out 1/4 of a turn.


When adjusting your idle mixture screws doesn't seem to change the engine rpm much is an indication that there is something wrong and could be an indication of a needed rebuild.

Related Items

Item In Cart Carter  Idle Mixture Screws 16-29
In Stock
1.452"
Part Number 16-29
(1)
$6.95
Item In Cart Marvel Schebler Idle Mixture Screw - 16-23
In Stock
10-32 x 1.255"
Part Number 16-23
(1)
$4.95
Item In Cart Zenith Idle Mixture Screw - 16-151
In Stock
1.156" overall length
.75 metic threads
.192" diameter at threads
Part Number 16-151
$6.95
Item In Cart Idle Mixture Screw - 1.186
In Stock
Overall length 1.186"
Part Number 16-163
$6.95

Recently Viewed Items

Can't find what you need? Contact Us
TOP