Author Topic: CB200T  (Read 1718 times)

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Jaredl2055

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CB200T
« on: September 24, 2009, 06:12:39 PM »
I have a Honda CB200T and when i fire it up it revvs very high like around 6K and i cant figure it out.....any ideas would be a big help


thanks in advance

Jared

Offline bucky katt

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Re: CB200T
« Reply #1 on: September 24, 2009, 06:15:25 PM »
are the carbs synched? sounds like you have an air leak in the carb-to-engine boots.
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Offline Green550F

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Re: CB200T
« Reply #2 on: September 25, 2009, 06:02:34 AM »
try spraying carb cleaner around the boots. if the idle changes it's a leak.
also check the choke...
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Offline Tretnine

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Re: CB200T
« Reply #3 on: September 25, 2009, 06:37:01 AM »
agreed, choke could be stuck on. Check all throttle cables, also. Depending on the condition of the bike they could be totally rusted, broken, whatever or just stuck. If your choke is stuck on you'd have this issue.
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Offline tbpmusic

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Re: CB200T
« Reply #4 on: September 25, 2009, 07:00:22 AM »
CB200's are one of those bikes that the throttle cable has to be routed exactly right on, no leeway at all.
If you need photos, let me know.

I've experienced your problem - everything looks/acts fine, then you put the tank on and it instantly redlines when you start it up, yeah??

Also, when you bolt the carbs to the head, you have to do it very evenly, one side of the carb to the other.
There's a rubber o-ring on the manifold that deforms if you don't do it evenly, allowing big-time air leaks.

Don't ask how I know all this..............been there, done it.
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M

Offline Halvin

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Re: CB200T
« Reply #5 on: December 03, 2009, 06:10:44 AM »
I have just acquired a 74 CB200 and am having the problem you allude to in your post concerning the throttle cable.  can you provide more information about the correct routing of the cable? 

CB200's are one of those bikes that the throttle cable has to be routed exactly right on, no leeway at all.
If you need photos, let me know.

I've experienced your problem - everything looks/acts fine, then you put the tank on and it instantly redlines when you start it up, yeah??

Also, when you bolt the carbs to the head, you have to do it very evenly, one side of the carb to the other.
There's a rubber o-ring on the manifold that deforms if you don't do it evenly, allowing big-time air leaks.

Don't ask how I know all this..............been there, done it.
Hal

Offline tbpmusic

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Re: CB200T
« Reply #6 on: December 06, 2009, 01:05:36 PM »
I have just acquired a 74 CB200 and am having the problem you allude to in your post concerning the throttle cable.  can you provide more information about the correct routing of the cable? 

CB200's are one of those bikes that the throttle cable has to be routed exactly right on, no leeway at all.
If you need photos, let me know.

I've experienced your problem - everything looks/acts fine, then you put the tank on and it instantly redlines when you start it up, yeah??

Also, when you bolt the carbs to the head, you have to do it very evenly, one side of the carb to the other.
There's a rubber o-ring on the manifold that deforms if you don't do it evenly, allowing big-time air leaks.

Don't ask how I know all this..............been there, done it.

Route the throttle cable along the right side of the frame, under the right tank mount rubber thing.
The "splitter" on the cable will fit right under the coils - then route the left carb section between the two upper engine mounts. It will be just barely long enough, but it's the only way it will work.
Then when you put the tank on, be really careful you don't move the cable any, or that left carb will not allow it's slide to go down all the way.
I always wait to put the air cleaners on until the tank is in place, so I can actually see that the slide isn't hanging up........
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M

Offline Halvin

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Re: CB200T
« Reply #7 on: December 06, 2009, 05:23:27 PM »
I have just acquired a 74 CB200 and am having the problem you allude to in your post concerning the throttle cable.  can you provide more information about the correct routing of the cable? 

CB200's are one of those bikes that the throttle cable has to be routed exactly right on, no leeway at all.
If you need photos, let me know.

I've experienced your problem - everything looks/acts fine, then you put the tank on and it instantly redlines when you start it up, yeah??

Also, when you bolt the carbs to the head, you have to do it very evenly, one side of the carb to the other.
There's a rubber o-ring on the manifold that deforms if you don't do it evenly, allowing big-time air leaks.

Don't ask how I know all this..............been there, done it.

Route the throttle cable along the right side of the frame, under the right tank mount rubber thing.
The "splitter" on the cable will fit right under the coils - then route the left carb section between the two upper engine mounts. It will be just barely long enough, but it's the only way it will work.
Then when you put the tank on, be really careful you don't move the cable any, or that left carb will not allow it's slide to go down all the way.
I always wait to put the air cleaners on until the tank is in place, so I can actually see that the slide isn't hanging up........
Thanks for the help.  When I acquired the bike it had a '75 CB360 gas tank on it.  Since no alterations had been made the tank kind of floated between the legs when riding.  I am bidding on e-bay for the correct tank and I'll apply your routing method when I install it. 

Another question:  The cable operated disc brake doesn't seem to have much stopping power.  The disc looks smooth and even.  Is this to be expected from this setup?
Hal
Hal

Offline tbpmusic

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Re: CB200T
« Reply #8 on: December 06, 2009, 05:53:31 PM »
Another question:  The cable operated disc brake doesn't seem to have much stopping power.  The disc looks smooth and even.  Is this to be expected from this setup?
Hal

After I rebuilt mine, it works fine.
Not as good as a hydraulic disk, but definitely better than a drum brake.
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M