Jet size question for '83 GS1100ED

[crag antler]

So when I was going thru my carbs last year, I noticed the jets were #105
After checking various resources,including here ,I found that stock size was #112.5
So this is what I put in. The bike has stock air filter,stock air box and stock exhaust.
So why would you put in a smaller jet and what difference would it make on the bike?
The first owner on the original title was in Arizona, so maybe a sea-level issue?
Thanks.

 

[posplayr]

More like tight

More like tight

wad issues. PO must have been trying to save on gas, and never opened the throttle much. The stock settings should work well enough at sea level. BTW where in Arizona is it sea level? As I recall Yuma Az (YPG) which is probably as close to sea level a you get is about 1200 ft MSL.

Posplayr

 

[GQROD]

So when I was going thru my carbs last year, I noticed the jets were #105
After checking various resources,including here ,I found that stock size was #112.5
So this is what I put in. The bike has stock air filter,stock air box and stock exhaust.
So why would you put in a smaller jet and what difference would it make on the bike?
The first owner on the original title was in Arizona, so maybe a sea-level issue?
Thanks.

The smaller jets would make the bike run lean, saves fuel generates more power, also runs the risk of burning pistons.

 

[SqDancerLynn1]

105? It could be lean. What do the plugs look like?

 

[crag antler]

105? It could be lean. What do the plugs look like?

With the #125's ,like this http://www.thegsresources.com/_forum/showthread.php?t=132622

 

[trippivot]

did you consider they may be from a different jet manufacturer?

112 genuine mikuni
105 dyna jet jets ??
105 factory jet co.???

what needles are in there mikuni or another adjustable type?

 

[crag antler]

did you consider they may be from a different jet manufacturer?

112 genuine mikuni
105 dyna jet jets ??
105 factory jet co.???

what needles are in there mikuni or another adjustable type?

I'm pretty sure the 125's I got them from Bike Bandit as a OEM part.
The 105's I not sure. Not marked.
Are factory jets marked.
I'm almost think Mikuni and dynas are marked.
Could be wrong.

I warmed her up today and after warming up for about 8 minutes she settled down into a somewhat good idle. Had good throttle response with only a tiny bit of smoke. It smell like fuel and not oil burning so I think I just need to put the 105's back in and do a carb synch.
Thanks for all the help.