Self Tunning - Khyber G-10 (Plugs, valve clearance, spark gap etc)

[acmaatif]

xulfiqar..... my khyber was drinking petrol and giving black smoke and mechanic said its giving kacha oil.....it gave only avg of 5 to 6 in city area.... i have changed carburetor kit but no improvement... now i have changed both butterfuly and shaft of carburetor which reduced smoke upto 50% ..... the mixture of carburetor is not giving any kind of effect either to fully tight it or loose it no changes happen on engine.... pls pls advise me

[acmaatif]

it drained out in 2 weeks? Must be physically dropping

xulfiqar..... my khyber was drinking petrol and giving black smoke and mechanic said its giving kacha oil.....it gave only avg of 5 to 6 in city area.... i have changed carburetor kit but no improvement... now i have changed both butterfuly and shaft of carburetor which reduced smoke upto 50% ..... the mixture of carburetor is not giving any kind of effect either to fully tight it or loose it no changes happen on engine.... pls pls advise me

[gujartaj]

Aslam-o-alikum! ACMAATIF! i also own a khyber which drunk too much, i not think so that you believe, but it happen with me that it drunk 7 liter in 20KM main road drive. OK now came to your ride...are you tight mixture screw by your self? if so then by which tool and which screw..I mean the outer one or inner one....outer one is freely moved around the inner one..you need to loose inner one with the help of tester or flat screw driver. 2ndly check air intake that there should be no leakage in this area...Regards
I am junior member and have no most mechanical background but keep interest in mechanical work of my khyber and believe on DIY

[aftababc]

Aslam-o-alikum! Friends! Can any one guide me rom where i got speed meter cable for khyber...as earlier got one and mechanic said me that its for cultus not for mhyber....if any know plz guide ...i am from Gujranwala but no prob if you gave address of lahore
regards

purchased one day before local made. fitting proper nahe aate gear box main rs 320
i suggest purchase a original one . rs 500
swift ki tip flat ho ge r khyber ki round shape main

[aftababc]

installed new led strip led lights (DIY)

[Xulfiqar]

xulfiqar..... my khyber was drinking petrol and giving black smoke and mechanic said its giving kacha oil.....it gave only avg of 5 to 6 in city area.... i have changed carburetor kit but no improvement... now i have changed both butterfuly and shaft of carburetor which reduced smoke upto 50% ..... the mixture of carburetor is not giving any kind of effect either to fully tight it or loose it no changes happen on engine.... pls pls advise me

If your idle mixture is not affecting anything, you have a bad idle circuit in the carburettor - find a better carburettor mechanic and get him to clean out the top hat of the carburettor, its probably plugged in the idle emulsification circuit and all fuel is being sucked from the main primary circuit - specially if you rebuilt the throttle plates.

[acmaatif]

If your idle mixture is not affecting anything, you have a bad idle circuit in the carburettor - find a better carburettor mechanic and get him to clean out the top hat of the carburettor, its probably plugged in the idle emulsification circuit and all fuel is being sucked from the main primary circuit - specially if you rebuilt the throttle plates.

dont got it xulfiqar bhai....... i think u r telling about reopening of top carburetor and refitiing it...... is it so.... can it be due to mixture size. is something missing in carb or not fitted properly..... or vaccume pipe fitting problem is effecting this]

[Xulfiqar]

you said that the idle mixture is not affecting anything - this is bad, it means that something else than the idle circuit is making the engine idle - the only circuit that is above the idle circuit is the primary jet circuit - the secondary jet circuit is above both.

The top hat of the carburettor has tiny air passages in it to "foam" the fuel and be properly utilised in the idle circuit at the throttle opening. If it is plugged - the fuel quantity increases ten fold as raw liquid is sucked (black smoke). If its clean then recheck the float height for correct working and also check that the throats are installed correctly - infact the engine should idle even with primary and secondary jets blocked. The idle circuit takes care of that.

how a carby works

1 - idle speed = idle to fast idle rpm
2 - 1000 rpm to midrange - 3000 rpm plus idle circuit (primary throttle open, secondary closed)
3 - 3000 - 6000 rpm = secondary circuit plus primary circuit plus idle circuit. (both throttles opened fully)

[smijaz]

Zulfiqar Bhai, Are you talking about the two copper/bronze ports each in primary and secondary bore. They both lead to the fuel bowl. I thought it is meant to push fuel in to jets.

[syncview]

No, he's talking about the top hat of the carby..looking at the pic you posted it is the top part which can be removed by unscrewing the top 5 or 6 screws..which would reveal the float bowl and you'd be able to remove the venturies as well..

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[fas133]

Top Hat of carb.

[smijaz]

In the pic i posted, i was refering to the air passages that @zulfiqar mentioned in his last two posts which he said the tiny air passages are there to "foam" the fuel.

"The top hat of the carburettor has tiny air passages in it to "foam" the fuel and be properly utilised in the idle circuit at the throttle opening. If it is plugged - the fuel quantity increases ten fold as raw liquid is sucked (black smoke)"

[Xulfiqar]

Zulfiqar Bhai, Are you talking about the two copper/bronze ports each in primary and secondary bore. They both lead to the fuel bowl. I thought it is meant to push fuel in to jets.

The two bronze colored slanted ports are float vents

this is the carby hat bit - use very strong carby cleaner to clean the air passages.

[Hitman1]

Why does receiver drier sight glass gets permanently heavy fogged, even with ac off?

[smijaz]

It may be because of access of refrigerant oil (PAG) in the system.

Have you installed a new sealed dryer while fitting the AC system in your car?

[Hitman1]

the drier was changed with a new one.

i got it checked, there is little amount of residue left in the AC pipes, after its flushing(with CTC), which is sticking to sight glass.

[Hitman1]

to check the resistance of ignition coil, do I have to unplug any wire other than the high tension wire (that goes from coil to distributor)?.
do i have to disconnect negative battery terminal or any other wire?

[smijaz]

@hitman1
No other wire removal required just the HT for secondary coil resistance.

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[surrosh]

Thanks.
PMed U , these tools are easily available at few specialized dealers at Brandreth Road (Lahore) with huge price differences so it is advisable to check from a couple of shops before buying.

price?

[Hitman1]

This thread is pure gold for khyber owners. Extremely helpful.

Resistance test.
Sumitomo plug wires (at 20 k ohm setting)
HT lead 10.6
14.3 , 12.5, 11.6

Coil denso 12V OEM.
14k ohm
1.3 ohm (after deducting .3 resistance between multimeter two probes)

Are these within range?

How much variation in plug wires readings is acceptable?