AOA 2 or 3 months ago we bought Khyber 98 as a daily runner car it has only petrol i think previous owner removed the cng kit and cylinder. Car gives normal milege and there is no problem on petrol then we install cng kit because there is no load shedding of gas in KPK. Now come to problem car takes a lot of jerks at 1st and 2nd gear. At high speed it gives gud performance no jerks at all. 2nd problem is that when i start the car at morning it takes a lot of self to start and when the engine start pharr pharr pharrr sound is coming from engine when I press the race pedal. please guide me what should I do many mechanics and cng tunning wala tried but fail to diagnose.
jerks in 1st morning drive or all the day???
every time it takes jerks in 1st and 2nd gear os k bad sub Koch normal hojata hy,
baki gears py jerks nahe lagty sirf 1st aur 2nd my lagty han
seems like tappet problem! get the cars tappets adjusted!
mechanic said tappets are okk
Cross check them by some good mechanic.
Adjest tappet and distributer...
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jerks only on petrol or also cng?
only in cng , there is also smell of petrol in cabin for some time
1 and 2nd Gears do require more Precision.
I have heard that these Old cars require more Precision in Gear shifts.
I got Mehran and still sometimes Jerk the car in Gear shifts.
Do share if you figure out the problem.
oky I will share
Hmm seems like cng kit needs adjustments
Check ignition cables/distributor cap and ignition timing,if both are ok,then check centrifugal ignition timing advance mechanism installed in distributor for proper functioning.
thankx God Today the problem is solved. socha thread update kar do k kisi aur frnd ke help bhe ho jaey ajj car ny start hony sy inkar kar dia start ho k band ho jati the socha air ka problem hoga market gaya aur 1200 ka whole air cleaner buy kia then wapas aa k change kar dia aur car first self py start hoe aur saari problem solved .
means the damn air filter was blocked!
air cleaner was not air tight that's why car getting jerks in first and 2nd gear
not the air filter the whole assembly where air filter is placed
start the car at night, open the bonnet and stare at the wires, keep looking for atleast five minutes, if there is a plastic cover on the coil remove that too. tell us if there are any blue sparks or arcs