3k toyota engine tuning

levin (levin) 2013-08-05 02:08:21 +0500 #1

Here is a picture, showing adjustment screws on carburator. Big one in centre is air fuel mix, further left bottom corner is idle control screw . There is another screw on right side behind big screw, fixed near wire throttle unit. that is wire tight adjustment? car had cng before, now it has no cng fueling device

spectra (spectra) 2013-08-05 02:15:29 +0500 #2

The one on right is idle up adjustment and one below on left is mixture. opening mixture up makes it lean and closing it makes it rich. Smell the exhaust to find out which way it is going in actual. Before adjusting these make sure timing, tappets and condition of spark plug and ignition system is satisfactory.

Awais_jan (Awais_jan) 2013-08-05 02:52:21 +0500 #3

please post some clear picture I have 4K engine ... but not working good on petrol

levin (levin) 2013-08-05 07:55:34 +0500 #4

Sorry, camera cannot move back due to limited space that is why pic focus is out. you can follow step by step as @spectra explained
. my car ran ok, mechanic installed local made thin exhaust despite me telling him do not change exhaust , I will find mufflers myself. but he wanted money for eid, so all wrong charges , fix horn, fixed belt. he only washed engine with diesel. so I decide to tune car myself so I can learn ,, not him