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Sierra stalling when cold...

Posted: Sun Jun 05, 2005 6:05 pm
by matsmad
Ive just replaced the motor in my girlfriends sierra 91 model. I swapped the manifolds complete with carby straight over to the new motor, and for some reason it wont idle cold anymore. Seems the choke has stopped working. Any suggestions?

Posted: Sun Jun 05, 2005 6:15 pm
by largesuzy
switch the air box to cold mode and check if you have the hot air line from the manifold to the airbox

Posted: Sun Jun 05, 2005 7:10 pm
by wanna
ok is the choke operating does it open when it gets hot check the water flow through the carb i,ve had this problem before were the pipe was blocked no water flow to the carb

Posted: Mon Jun 06, 2005 11:52 am
by Pinball
checked all the adjust screws?

or vacuum lines to airbox leaking?

Spock

s

Posted: Mon Jun 06, 2005 7:31 pm
by matsmad
There is no airbox. I put a K&N pod on there 12 months ago and its been ok. The choke operates. Ive seen it open and close as the motor starts up. I dont know what all the screws do - BTW, how do u adjust the idle??? What i cant understand is that i swapped it over, nothing has changed, and it wont idle cold... thanks guys.

Posted: Mon Jun 06, 2005 11:39 pm
by JrZook
How colds we talking about??
I pulled the whole choke shaboddle off flaps and all, just give it a few pumps on the accelerator and hold it for 30sec at 1500rpm and away she goes.

Posted: Tue Jun 07, 2005 12:29 am
by alien
there is an adjuster screw for the cold idle (ie: choke on) perhaps seeing as the weather is getting colder you need to set the idle a little higher to compensate for the cooler weather...

Posted: Tue Jun 07, 2005 9:19 am
by Pinball
how far down the coast are ya... i got a set of manuals at my place if u wanna come borrow em.

Theres three idle adjust screws from memory, idle up for extra current draw, base idle and idle with the slug(auto choke).

Spock

.

Posted: Wed Jun 08, 2005 3:52 pm
by matsmad
I got a workshop manual for it, but doesnt show much. Im at Tweed Heads.