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View Full Version : Carb Adjustment's - Honda ATC 70 '84 ( Pic )



ceaserthethird
01-10-2007, 09:47 PM
Hey guy's Having trouble with the Carb adjustments , Just Installed All new Honda Gasket's on the Carb - Ready for tune

I added a Picture , Would like to know What each Adjustment Does ?

I have them As - Adjustment # 1 & Adjustment # 2 on the Picture.

Please Refer to the Adjustment's as #1 or #2 ( No Confusion )

Also would like to know what are the Stock Setting's on Both Adjustment's ?:confused:

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Their is also a adjustment on the Lower Bowl ( Rear ) - What does it control ?:wondering

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Any 1 Have a Stock ATC 70 manual ( Small one that comes with ATC ) For Sale ?

bigreddaddy
01-10-2007, 10:27 PM
Screw no.1 is your AIR/FUEL adjustment.
Screw no.2 is the PILOT screw adjustment.

I think most manuals say to start with the PILOT screw around 1 1/8 turns out, and your AIR screw around 2 turns out and adjust slowly from there.

The screw on the carb bowl drains the bowl of gas.

TravEX
01-10-2007, 11:32 PM
Adjustment 1 is the idle adjustment.
Adjustment 2 is the pilot adustment.
The screw at the bottom of the bowl is the drain screw.

When adjusting the idle, just remember to tap the throttle while adjusting to avoid pitting the slide (at least that's what I do).

For the pilot adjustment, stock is 1 1/2 turns out. To fine tune it, per the manual, have the trike running and warmed up. Start with the 1 1/2 turns out. Slowly turn (very slow, maybe a 1/4 turn at a time and let the motor catch up) the screw in until the motor stalls, then back it out 1 turn.

I downloaded my manual free from a glamisdunes site, I'll try to find it for ya.

Good luck,

Travis

TravEX
01-10-2007, 11:56 PM
http://www.glamisdunes.com/invision/index.php?showtopic=92462

Free manual here.