Rpm and gears

[Dumbquestionguy]

How's it going guys I was wondering is it normal to drive around 50 mph in 5th gear doing 4 to 5k rpms If this is normal please let me know I'm used to car motors I replaced a clutch and have been through everything Im new to these motors and want to know everything but have to pace myself also it idles at lights at like 2300 to 3k

 

[brettp]

I do 60 in 5th gear, something around 5k. But your idle is supposed to be 1100.

 

[Dumbquestionguy]

I do 60 in 5th gear, something around 5k. But your idle is supposed to be 1100.

Do you have think I need to turn my idle screw down so do you thinking my bike is running normal at cruising

 

[brettp]

At cruising you seem fine. Lower the idle via the idle screw.

 

[mrtwowheel]

What bike do you have, year and model? Count your teeth on the front and back sprockets. Something strange could have been done with your sprocket sizes.

 

[Dumbquestionguy]

At cruising you seem fine. Lower the idle via the idle screw.

I got Murray carbs the bike didn't come with regular carbs so I've been dealing with a f****** basket case thank you I'll look in to lowering the screw

 

[mrtwowheel]

Throttle cables need some slack in them or the idle will be wonky. Vacuum leaks will cause idle problems. check your vacuum port on carb #2, if leaking............

Forget about carb #2, doesn't apply here. Haven't you posted all of this before? What advice have you used so far?

 

[Dumbquestionguy]

What bike do you have, year and model? Count your teeth on the front and back sprockets. Something strange could have been done with your sprocket sizes.

1981 CB 750k with Murray carbs I'll count the sprocket I've have to put another cain on it soon

 

[Dumbquestionguy]

Throttle cables need some slack in them or the idle will be wonky. Vacuum leaks will cause idle problems. check your vacuum port on carb #2, if leaking............

No air leaks very tight

 

[mrtwowheel]

Throttle cables need some slack in them or the idle will be wonky. Vacuum leaks will cause idle problems. check your vacuum port on carb #2, if leaking............

Forget about carb #2, doesn't apply here. Haven't you posted all of this before? What advice have you used so far?

 

[Dumbquestionguy]

No air leaks very tight

I've fixed air leaks and replaced most the seals and stuff fixed the throttle slack so its good now doesn't hang anymore you have helped me a lot so far I'm a nervous person that needs to relax and people smarter than me like you guys actually keep me from going insane because I love this bike never had a feeling for a bike like this don't want to hurt or mess it up

 

[Dumbquestionguy]

Throttle cables need some slack in them or the idle will be wonky. Vacuum leaks will cause idle problems. check your vacuum port on carb #2, if leaking............

Forget about carb #2, doesn't apply here. Haven't you posted all of this before? What advice have you used so far

Fixed a lot you guys have helped me out a lot

 

[mrtwowheel]

Somehow I think you have misunderstood me. There has to be slack in the throttle cables. There must be slack in the throttle cables. There should be slack in the throttle cables. The handlebar throttle should feel like it has some slack before it turns the bell crank on the carbs. The cable should move some where it meets the carbs, before it turns the carbs.

 

[mrtwowheel]

Does your choke cable work well. Does your choke fully open?

 

[Dumbquestionguy]

Does your choke cable work well. Does your choke fully open?

Yes choke works

 

[Dumbquestionguy]

Does your choke cable work well. Does your choke fully open?

Somehow I think you have misunderstood me. There has to be slack in the throttle cables. There must be slack in the throttle cables. There should be slack in the throttle cables. The handlebar throttle should feel like it has some slack before it turns the bell crank on the carbs. The cable should move some where it meets the carbs, before it turns the carbs.

Cables and throttle have slack

 

[Dumbquestionguy]

Update. the bike is back to normal you guys all helped me figure this out with a little help from my friend it was a air fuel problem my clutch was bad and I had everything all tangled up thank you again for all of your help