Carburator Settings?
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Carburator Settings?
Hey all,
I am new to this forum, pretty new to my 1986 Spree, but am mechanically inclined. So here is the low-down. I brought a Spree with under 800 miles, great condition, from a guy who had it in Colorado. I am from Wisconsin which has a considerable different altitude than Colorado. So the moped doesn't run that well.
I would like to know how to setup my carburetor to be in the right neighborhood for an average altitude.
Heres what is in the carb.
Needle
Slide throttle: 5s B with the top clip set on the very bottom setting
Jet
Main Jet: 68
Screws
Main adjustment screw: 2.5 turns out
Please tell me if I have something out of whack. Also, can someone tell me what needles, jets, and screw settings (turns out) they are running on there late 80's sprees.
The moped runs and idles, but has very little low end acceleration. If I change the needle adjustment to the middle clip setting, I get more bottom end but it doesn't idle at all.
I am new to this forum, pretty new to my 1986 Spree, but am mechanically inclined. So here is the low-down. I brought a Spree with under 800 miles, great condition, from a guy who had it in Colorado. I am from Wisconsin which has a considerable different altitude than Colorado. So the moped doesn't run that well.
I would like to know how to setup my carburetor to be in the right neighborhood for an average altitude.
Heres what is in the carb.
Needle
Slide throttle: 5s B with the top clip set on the very bottom setting
Jet
Main Jet: 68
Screws
Main adjustment screw: 2.5 turns out
Please tell me if I have something out of whack. Also, can someone tell me what needles, jets, and screw settings (turns out) they are running on there late 80's sprees.
The moped runs and idles, but has very little low end acceleration. If I change the needle adjustment to the middle clip setting, I get more bottom end but it doesn't idle at all.
- CharlotteSpreeRider
- Veteran OG
- Posts: 709
- Joined: Tue Sep 11, 2007 2:13 pm
- Location: Sanford, FL
OK, I looked through the service manual and got an answer for my fuel mixture jet setting.
But what I still need to know is what Main Jet, and Needle Jet are for standard altitude operation.
I have a #68 main jet and a needle jet that says 5s B(closest symbol). So, I suspect I have the wrong needle jet, because of the strange symbol. I think it was changed for hight altitude operation.
Can someone please tell me what jet and needle they are running.
Thanks,
galesc
But what I still need to know is what Main Jet, and Needle Jet are for standard altitude operation.
I have a #68 main jet and a needle jet that says 5s B(closest symbol). So, I suspect I have the wrong needle jet, because of the strange symbol. I think it was changed for hight altitude operation.
Can someone please tell me what jet and needle they are running.
Thanks,
galesc
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- CBR1000RR
- Posts: 4957
- Joined: Sun Apr 16, 2006 11:51 am
- Location: Southern Michigan
Do a plug chop to see if you are rich or lean. The idle mix screw on mine is 2 turns out and my needle is set in the middle posistion (i have a three slot needle) with a stock 65 or 68 (cant remember) jet.
I am not a mechanic, nor do I play one on TV. Actually my advice is probably worth slightly less than what you pay to view it.
I am not sure what you mean by plug chop. I have been checking the plug to see if it is running rich or lean, but maybe you mean something else.Kenny_McCormic wrote:Do a plug chop to see if you are rich or lean. The idle mix screw on mine is 2 turns out and my needle is set in the middle posistion (i have a three slot needle) with a stock 65 or 68 (cant remember) jet.
What is the identification on your needle, with the three slots?
Thanks,
galesc
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- CBR1000RR
- Posts: 4957
- Joined: Sun Apr 16, 2006 11:51 am
- Location: Southern Michigan
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- CBR1000RR
- Posts: 4957
- Joined: Sun Apr 16, 2006 11:51 am
- Location: Southern Michigan
light brown is a good color you needle is set correctly. Also dont expect a spree to blast off like a rocket and throw you off the seat, they arent very powerful. Have you decarbonized your muffler? It may be your problem. Have you checked to be sure the air filter is in it?
I am not a mechanic, nor do I play one on TV. Actually my advice is probably worth slightly less than what you pay to view it.
I know what you are saying, I know it's not a powerful machine. The only reason I am wondering about the needle is that my spree only runs when it is set on the lowest level. So I am suspecting I have the wrong needle in the carb slide.Kenny_McCormic wrote:light brown is a good color you needle is set correctly. Also dont expect a spree to blast off like a rocket and throw you off the seat, they arent very powerful. Have you decarbonized your muffler? It may be your problem. Have you checked to be sure the air filter is in it?
I have not decarbonized my exhaust yet, how do you do it?
Thanks,
Casey
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- CBR1000RR
- Posts: 4957
- Joined: Sun Apr 16, 2006 11:51 am
- Location: Southern Michigan
There are 2 ways fire and chemical. Chemical involves throwing it in a lye bath for a few hours. There are 2 fire methods.
1. throw it in a camfire wait until the fire goes out and the muffler cools down to cold then clean it with a garden hose.
2. http://www.scootertherapy.com/mufflercleanpage.html
1. throw it in a camfire wait until the fire goes out and the muffler cools down to cold then clean it with a garden hose.
2. http://www.scootertherapy.com/mufflercleanpage.html
I am not a mechanic, nor do I play one on TV. Actually my advice is probably worth slightly less than what you pay to view it.
I would like to thank everyone that has posted to this thread, I really do appreciate it. But I find it hard that this thread has been viewed over 150 times and no one here knows what main jet they use at average altitude states on a 86' Honda Spree. Or no one has played with there needle jet and saw what the numbers were on that.
I thought for sure someone would know this stuff off the top of there heads.
Well, thanks to all that helped.
galesc
I thought for sure someone would know this stuff off the top of there heads.
Well, thanks to all that helped.
galesc