Another try... 80's LF Carbs

Ryker Carruthers · Post by **Ryker Carruthers** » Mon Sep 15, 2014 10:54 am

Anybody have a pair of LF carbs they would be willing to part with? Really would like to ride my sled this winter... I think I have all my clutching sorted but it still has no GO. Tops at 40 and then sowly drops...
I know where there are 6 NOS carbs but they just wont let go

harleysportster · Post by **harleysportster** » Mon Sep 15, 2014 6:21 pm

What makes you think it is a carb issue? Are you using the stock air-box? if not, you need to find one. What is the RPM at 40 mph?

jdrob · Post by **jdrob** » Mon Sep 15, 2014 10:00 pm

Ryker have you set a jack stand under the rear grab bar while it is running and tried revving it up?? If so what kind of rpms does it run upper end??

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Ryker Carruthers · Post by **Ryker Carruthers** » Sat Sep 20, 2014 11:46 am

If i have the rear end suspended and rev it it will wrap clear to 8-9000 iirc. When on the ground in snow it lugs and will get up to 30 mph and not very quickly at that. Holdin gthe throttle there it will slowly bog down to where it wants to sputter and die. Wide open the same. Let off and it runs down to idle. All jets are new. Set as manual says to be. Somebody took the power jets out and when i put them back i made my own fiting since the plastic elbow was gone. And i think that may be part of it.
Would really like to find a pair to throw on and see if it is different

Ryker Carruthers · Post by **Ryker Carruthers** » Sat Sep 20, 2014 11:51 am

The whole story as it happened. I havent touched it at all this summer so i figured i forgot a few things. Thanks for the help guys.

jdrob · Post by **jdrob** » Sat Sep 20, 2014 2:15 pm

Sounds like a clutching issue? Take your belt off. start the sled and leave it sit on the ground and see if it makes a difference. Any chance you had your secondary apart??

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jdrob · Post by **jdrob** » Sat Sep 20, 2014 2:16 pm

Ryker Carruthers · Post by **Ryker Carruthers** » Sat Sep 20, 2014 3:20 pm

Rob, i tried that too. Without the belt it had no issue screaming to 9000 and maybe more. I have had the secondary apart. Tried the spring in every hole. Now i'm back to the stock (#2) hole. It has new springs in both clutches. Engages about 4800. Did you by chance watch the videos i had linked in the other thread?

harleysportster · Post by **harleysportster** » Sat Sep 20, 2014 3:33 pm

Do you have new O rings in the carb bowls?

Ryker Carruthers · Post by **Ryker Carruthers** » Sat Sep 20, 2014 3:54 pm

Yessir i sure do.

Danzig · Post by **Danzig** » Sat Sep 20, 2014 4:56 pm

Put a new stator in it and a CDI....

You will be running in no time flat !!

Ryker Carruthers · Post by **Ryker Carruthers** » Sat Sep 20, 2014 5:08 pm

I has a new cdi.. I dont have a stator. I have one in a sport-trailfire that i would be okay with robbing. If it is the same? Reckon it can be pulled and installed without pulling engines?

Danzig · Post by **Danzig** » Sat Sep 20, 2014 5:20 pm

No and No....new as in used from another machine ?

Ryker Carruthers · Post by **Ryker Carruthers** » Sat Sep 20, 2014 6:01 pm

It is a new stator in a sportfire motor. I had it all put together but never finished getting it set up in the trailfire. If. The stator from the sporty is the same as LF i can pull it and put it in my LF. Or would it be worth it to find a new stator just for it

Danzig · Post by **Danzig** » Sat Sep 20, 2014 6:15 pm

Not a fan of this part swapping thing you got going on.....are you putting a sportfire engine into a trailfire but wanna put liquifire carbs on it ??

Get the correct parts, new. Stator and CDI for the correct machine..

I am lost now

Another try... 80's LF Carbs

Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs

Re: Another try... 80's LF Carbs