Author Topic: CL200 Carb Questions - Hesitation on Acceleration  (Read 7084 times)

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Offline tbpmusic

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #25 on: June 02, 2016, 08:24:23 AM »
Thanks TBP, but they don't have them. These jets really are not available any place else. Even in aftermarket.

I just got a pair of 88 mains from them for my CB200, about 6 weeks ago...........

To balance, I have a couple of long, thin nails - rest them sticking out the back of the carbs, with the slide holding them lightly in place. When the slide moves, you'll see the nail move right away.
Don't forget to do this with the idle speed screws backed out all the way.

Have you messed with slide the needle at all ?
"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 DaveBarbier

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #26 on: June 02, 2016, 08:34:31 AM »
Thanks TBP, but they don't have them. These jets really are not available any place else. Even in aftermarket.

I just got a pair of 88 mains from them for my CB200, about 6 weeks ago...........
Yes, mains. They don't have slows.

To balance, I have a couple of long, thin nails - rest them sticking out the back of the carbs, with the slide holding them lightly in place. When the slide moves, you'll see the nail move right away.
Don't forget to do this with the idle speed screws backed out all the way.
I like that method, I'll try that.

Have you messed with slide the needle at all ?

Have not yet. Since the bike is stock in intake and exhaust (albeit patched) is don't see changing the clip position as helping. It's in the stock placement, currently. I'll try it, but it would surely effect more of the range and alter how well it runs up to and over 1/4 throttle.

Thanks for the help TBP

Offline DaveBarbier

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #27 on: June 02, 2016, 01:52:47 PM »
Possibly making headway. I know I said I'd be taking a break with this bike but I can't help it. I removed the air filters and it seemed to run much better. But since with this bike the filter is epoxied into the box, I had to run open mouthed carbs. Wasn't exactly smooth, but the hesitation was very much reduced and other throttle ranges seemed ok too.

These things don't exist anywhere so I've been reading about burning out the elements and glueing in foam from Uni. And I love fire induced destruction so I'm going to give it a go. Someone dial 9-1 and if this fire gets outta control, dial 1 again.

Offline CycleRanger

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #28 on: June 02, 2016, 02:54:54 PM »
These things don't exist anywhere so I've been reading about burning out the elements and gluing in foam from Uni. And I love fire induced destruction so I'm going to give it a go. Someone dial 9-1 and if this fire gets outta control, dial 1 again.

Yep, that's the generally accepted practice. :)
Do you have a copy of the Honda Shop Manual or Parts List for your bike? Get one here:
https://www.honda4fun.com/materiale/documentazione-tecnica
CB750K5        '79 XL250s     CL350K3
CB750K3        '76 XS650      '76 CJ360T

Offline DaveBarbier

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #29 on: June 02, 2016, 02:59:33 PM »
These things don't exist anywhere so I've been reading about burning out the elements and gluing in foam from Uni. And I love fire induced destruction so I'm going to give it a go. Someone dial 9-1 and if this fire gets outta control, dial 1 again.

Yep, that's the generally accepted practice. :)

Glad you said that.


Offline tbpmusic

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #30 on: June 03, 2016, 01:00:39 PM »
That's what I did on my CB200 filters.
Had to fool with things a little after that - these carbs are sensitive to intake/exhaust mods.

As an aside, I'm not sure the slow jet is an issue - once you hit about 2,000 rpm it's out of the picture.
« Last Edit: June 03, 2016, 01:02:21 PM by tbpmusic »
"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 DaveBarbier

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #31 on: June 03, 2016, 01:19:36 PM »
That's what I did on my CB200 filters.
Had to fool with things a little after that - these carbs are sensitive to intake/exhaust mods.

As an aside, I'm not sure the slow jet is an issue - once you hit about 2,000 rpm it's out of the picture.

Yeah I'm seeing that they're pretty sensitive, haha. Hopefully once this air filter situation is finished I won't have too much to do...we'll see.

Jet overlap/handoff isn't RPM related, it's throttle opening related. You could be at 7k rpm and not using your main jet if the throttle isn't opened enough.

Offline tbpmusic

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #32 on: June 05, 2016, 07:24:38 PM »

Jet overlap/handoff isn't RPM related, it's throttle opening related. You could be at 7k rpm and not using your main jet if the throttle isn't opened enough.

Well, strictly speaking that's true, of course - but a little nit-picky.
It's pretty obvious that the two are directly related - open the throttle and (hopefully) the rpm increases. Can't think of how you might reach 7K without opening the throttle......
"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 DaveBarbier

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #33 on: June 06, 2016, 04:53:41 AM »

Jet overlap/handoff isn't RPM related, it's throttle opening related. You could be at 7k rpm and not using your main jet if the throttle isn't opened enough.

Can't think of how you might reach 7K without opening the throttle......

Downshift, throttle could be closed, no main jet ;)

Offline DaveBarbier

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #34 on: June 13, 2016, 01:15:11 PM »
Seems like the new air filters solved the issue. Smooth throttle across the board, finally! This little f-er was becoming annoying. Weird that during plug chops it was showing a good tan color. I'll just chalk that up to voodoo.

Now it might be a bit lean because apparently the UNI  media flows more air. I think tbpmusic was alluding to this in an above post. Going to do some more plug chops and see what I get.

Anyway, thanks for the help fells! Hopefully I can get this completely finished up quick so I can sell it with a good conscience!

Offline CycleRanger

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Re: CL200 Carb Questions - Hesitation on Acceleration
« Reply #35 on: June 13, 2016, 03:27:31 PM »
I wish every seller was like you! :D
Do you have a copy of the Honda Shop Manual or Parts List for your bike? Get one here:
https://www.honda4fun.com/materiale/documentazione-tecnica
CB750K5        '79 XL250s     CL350K3
CB750K3        '76 XS650      '76 CJ360T