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carb cuts out in cold weather

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Offline thorlof

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carb cuts out in cold weather
« on: February 22, 2008, 10:10:05 AM »
i have an 88 samurai with the 1600cc bottom block and a 1300cc head running a torque cam and a webber carb   altogether it gives me just under 100 hp

i am getting horrible gas millage but i think thats the cam

on cold days 30 +-  after the choak cuts off the motor starts missing runs horrible no power, back fires and carb pops,  it dies every time the motor drops under 1000rpm.


i maid a mock up preheater and it solved all the problems.

does any one have any ideas on other solutions   or causes 
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big_kountry21

Re: carb cuts out in cold weather
« Reply #1 on: February 22, 2008, 10:12:55 AM »
jets.....
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Offline Rhinoman

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Re: carb cuts out in cold weather
« Reply #2 on: February 23, 2008, 10:15:36 AM »
Carb icing. I take it you don't have the original hose from the exhaust to the airbox?
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2000 Vitara 1.6, 3+3 Lift, 33"MTs, 5:83s, LWB brakes, Winch, Snorkel, Safari Rack
1986 SJ413K PickUp, 1.6L conversion.

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Offline takai

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Re: carb cuts out in cold weather
« Reply #3 on: February 23, 2008, 02:15:48 PM »
Quote from: big_kountry21 on February 22, 2008, 10:12:55 AM
jets.....

Don't give him any ideas. He doesn't need encouragement in this area.  ;D

I thought that the pre heater was solving the problem with that carb icing up?
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87 Sammi "Sir Tweak " Rockcrawler 4:1, Mighty Kong , 1.6 16V, Centerforce II, 2" Exhaust, Esteem seats. - Long gone
97 Tracker "Jezebel"  Bone Stock DD

'Cause, I am to misbehave.
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Offline thorlof

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Re: carb cuts out in cold weather
« Reply #4 on: February 24, 2008, 11:16:34 AM »
its an open air carb and air cleaner

i rigged together a pree heater and it worked pretty good although with all the exhaust leeks it has i was getting a lot of carbon up and into the air filter

hemmm jets
those would help me on the freeway.
throw it in neutral and kick on the turbines.
i might need a second gas tank and a hand throttle or something
it could work
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Offline takai

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Re: carb cuts out in cold weather
« Reply #5 on: February 24, 2008, 03:01:52 PM »
Quote from: thorlof on February 24, 2008, 11:16:34 AM
hemmm jets
those would help me on the freeway.
throw it in neutral and kick on the turbines.
i might need a second gas tank and a hand throttle or something
it could work

I can just see it now.  I will help yu fab it up but, you have to supply the parts and the video camera. I just have to get the crash...er...test fire on video.
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87 Sammi "Sir Tweak " Rockcrawler 4:1, Mighty Kong , 1.6 16V, Centerforce II, 2" Exhaust, Esteem seats. - Long gone
97 Tracker "Jezebel"  Bone Stock DD

'Cause, I am to misbehave.
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