[Sparkadelic]

Bought it from a buddy who bought it but never messed with it until i bought it from him. would't fire, he cleaned points, but not sure if they are set correct. would only run on 1 cylinder, took other carb off and float was siezed closed. He cleaned both carbs put them on I brought it home and it runs..but at low idle it misses, as soon as I get into the throttle both cylinders come to life. I cruised it up and down the alley a few times and it seems to have lots of Jam going through the gears. Just at low idle that **** miss, it wont idle without assistance on the throttle.(unless I turn the idle screw up/in).

I have not checked the compression yet, I will I just forgot to take my compression tester over to my bro's (its actually at his place).

Anyways I was wondering if anyone can give me any pointers or the settings for carbs and points. Also am having trouble finding service manual for this model.

Thanks to all!

 

[1Adam12]

As far as setting the carbs - you should find 3 screw adjustments.

One - for 1 and 2 usually left side of bike

a middle adjustment that is for setting each side equal for 1/2 and 3/4

Rt side for carbs 3/4

If you are good at it you can eyeball the adjustment, but I'm not big on that and purchased a carbtuner II www.carbtune.com I got my carbs tuned in 20 minutes the first time I did it. It's that simple.

There are less expensive options like from Motion Pro, but they have Mercury in them. I elected to go with a non - mercury system because I have a young one at homeand all of the high recommendations the carbtuner got from local riders and motorcycle magazines. Motion Pro is available at most shops and on-line as well. Check with our sponsor to support them if you decide to buy a Motion Pro.

 

[Sparkadelic]

Thanks I expect to be riding for the rest of my life now so I guess I should buy a tool and do it right!

I have another question but will post as new.

 

[1Adam12]

Welcome to the board and glad I could give you a hand

 

[bikeaholic]

re

might check to see if the carbs are sucking air-that'll make a rough idle

 

[Sparkadelic]

Been away for a while. Anyways, Just got on the road with the bike. Misses at low idle, backfires on deceleration. Have been searching and found one person who says that the bike is running too lean. Still looking for more opinions until I get a carb tuner. The guy I bought it from took carbs totally apart and cleaned and put them back together and on. He didn't have a battery to drive it (only to start it, it was too big). So when he set the carbs he would have just been idling it in one spot with no carb tuner that I know of.

 

[1Adam12]

What is your pilot screw set on the carbs? 1, 1.5, 2, 3 turns out?
Take one of the pilot screws and screw it clockwise to close - do not overtighten and count how many times the flathead screwdriver turns fully.

Turn the pilot screw back out the same amount and do 1/4 extra until you no longer run rough. Make sure the other pilots screws match.

Try doing a quarter turn out on each carb and see if that helps.

 

[Sparkadelic]

Thanks 1adam12. As a footnote to that. I took it out this morning and it ran rough for a bit but started to fire on both and run smooth on idle, deceleration and acceleration. The other post abou the too lean said that is what his was doing also. Although I rode it for 20 mins or so last night and still back firing. I was hoping to run a tank of gas through it before I started messing with the carbs. It has not run in at least 3 years.

Anyways thanks again, I am looking for some info on checking stuff after it has sat so long, but will post as new topic.

 

[Sparkadelic]

Just to keep updated. Took bike out again this afternoon, started and ran on both the entire time. I had the right side carb leaking through the overflow tube since I bought it. After last night it did not appear to leak anymore, I have been putting a jug under it to catch it, and the jug did not look any more full this afternoon. I put a new jug under after this last ride to see if it has stopped. That may have been my problem, if the float would not stop fuel flow it may have been flooding that cylinder off and on...by the way, it was that side that was backfiring.

Thanks all.

 

[1Adam12]

If you are overflowing it sounds like your float needle need a thorough cleaning or just replace it. If/when you take the carbs off your bike again, drain the gas and flip the carb upside down and take off the cover so you can see the floats. When the float touches the needle - does the needle move freely? I would check the float height at this point as well.

 

[1Adam12]

The only other thing I can think of is that you have a vacuum leak still somewhere or a blockage.

 

[Mandrith]

got a question is there a way to adjust the carbs on the 82 csr kz750m1 twin and what is the procidsure for adjusting valves and timing chain and what is the valve lash thanks for any help

 

[Alizard]

Bought it from a buddy who bought it but never messed with it until i bought it from him. would't fire, he cleaned points, but not sure if they are set correct. would only run on 1 cylinder, took other carb off and float was siezed closed. He cleaned both carbs put them on I brought it home and it runs..but at low idle it misses, as soon as I get into the throttle both cylinders come to life. I cruised it up and down the alley a few times and it seems to have lots of Jam going through the gears. Just at low idle that **** miss, it wont idle without assistance on the throttle.(unless I turn the idle screw up/in).

I have not checked the compression yet, I will I just forgot to take my compression tester over to my bro's (its actually at his place).

Anyways I was wondering if anyone can give me any pointers or the settings for carbs and points. Also am having trouble finding service manual for this model.

Thanks to all!

Points spec: gap 3 - 4 mm (12 - 16 thousandths of an inch)