stage 3 kit 79 gs10000 too rich too lean?

[drewandkellie]

I put a stage three kit on my 79 gs1000E and i am fine tuning it. I havent done one before and before yanking the carbs off again and guessing, I figure I would ask for some advice.
the bike has seperate air filters, (I have not spayed them with any oil), has a 4 into one header and no other motor work. The initial setting settings had me put the needle clip at #2 from the top with the washer on top of the clip. It ran pretty good but needed to have the air mixture screw almost all the way in(1/2 turn out). I then moved the washer to the bottom of the clip which they say is 1/2 a step richer. bike seemed about the same.
cold starts are weird as it spits and takes forever for the four cylinder to all fire up and come online. It runs ok but pops out the exhaust( not really a full backfiring) when I dback off the throttle from speed. I checked the plugs and they look gray.
My assumption is to raise the needle to #3 notch. What puzzles me is the stage 3 kit never offered a pilot jet increase. my question is should I raise the needle another half step richer or should I be looking at my pilot jet, or am i going wrong completely. Like I said ir runs pretty good but I think it can run better.

 

[hampshirehog]

You need to do some plug chops. Do a search on here for how to do them.

Your needle position has nothing to do with the airscrew position - they are different circuits. If she only runs right on the pilot circuit with the airscrew nearly in you can either leave the airscrew there (it's fine there if it's adjusted right) or you can turn the fuel screws out a half turn, say. From the exhaust popping it sounds like she is lean on the pilot circuit and turning those fuel screws out can sort that.

Like I said, plug chops will tell you what's going on.

 

[ozman]

I put a stage three kit on my 79 gs1000E and i am fine tuning it. I havent done one before and before yanking the carbs off again and guessing, I figure I would ask for some advice.
the bike has seperate air filters, (I have not spayed them with any oil), has a 4 into one header and no other motor work. The initial setting settings had me put the needle clip at #2 from the top with the washer on top of the clip. It ran pretty good but needed to have the air mixture screw almost all the way in(1/2 turn out). I then moved the washer to the bottom of the clip which they say is 1/2 a step richer. bike seemed about the same.
cold starts are weird as it spits and takes forever for the four cylinder to all fire up and come online. It runs ok but pops out the exhaust( not really a full backfiring) when I dback off the throttle from speed. I checked the plugs and they look gray.
My assumption is to raise the needle to #3 notch. What puzzles me is the stage 3 kit never offered a pilot jet increase. my question is should I raise the needle another half step richer or should I be looking at my pilot jet, or am i going wrong completely. Like I said ir runs pretty good but I think it can run better.

spray the filters with proper filter oil this will make the bike run richer sounds like your to lean at the moment
oz

 

[Guest]

spray the filters with proper filter oil this will make the bike run richer sounds like your to lean at the moment
oz

This is only a temporary fix, if a fix at all.

Sounds to me like the carbs need a proper cleaning.

 

[ozman]

nothing temorary about it
the filters are designed to be oiled and when oiled provide a cetain amount of restriction
i recently cleaned the filter on my bimota sb6 similar material to the pods got distracted and forgot to oil it after i washed it out
started bike later and it ran like a bitch popping and backfiring put my hand over part of filter to restrict it no more popping
removed and oiled filter runs like a dream now................

and the cost and time to try ? a few minutes and a few cents
sometimes we tend to look for the most complicated solution rather than the simple obvious one

try this remove your aircleaner lid on a std gs.... even this alters the restriction on most older bikes they run lean

oz

 

[hampshirehog]

the filters are designed to be oiled and when oiled provide a cetain amount of restriction

Depends on the filter and he never said what type he's got on there.

 

[Big T]

I put a stage three kit on my 79 gs1000E and i am fine tuning it. I havent done one before and before yanking the carbs off again and guessing, I figure I would ask for some advice.
the bike has seperate air filters, (I have not spayed them with any oil), has a 4 into one header and no other motor work. The initial setting settings had me put the needle clip at #2 from the top with the washer on top of the clip. It ran pretty good but needed to have the air mixture screw almost all the way in(1/2 turn out). I then moved the washer to the bottom of the clip which they say is 1/2 a step richer. bike seemed about the same.
cold starts are weird as it spits and takes forever for the four cylinder to all fire up and come online. It runs ok but pops out the exhaust( not really a full backfiring) when I dback off the throttle from speed. I checked the plugs and they look gray.
My assumption is to raise the needle to #3 notch. What puzzles me is the stage 3 kit never offered a pilot jet increase. my question is should I raise the needle another half step richer or should I be looking at my pilot jet, or am i going wrong completely. Like I said ir runs pretty good but I think it can run better.

Okay

Start by:

1. Oiling filters and trying again
2. What size main jet? Mikuni or DJ?
3. Needle- Mikuni or DJ?
3. Air screw position?
4. Fuel screw position?

You're not giving us much to go on here