Coleman CT200U won't rev when throttle

[Jblack0884]

I have a Coleman CT200U it was fubar when I got it I've changed the throttle assembly and so on and so forth but what my problem is is when I try to rev it doesn't not rev up on the throttle and it won't take off I've also changed the centrifugal clutch because it took off by itself prior but now that I fixed it meaning the clutch it won't rev and won't do anything The link below is a YouTube video that I made the server would not let me post it

 

[Strigoi]

Did you install the key for the clutch?

If it's not revving you might not have the throttle hooked up correctly. I don't mess around with stock carbs, so I don't know how the throttle cable should be hooked up for them.

 

[creia]

Has the original governor linkage/spring been bypassed, removed or otherwise disconnected?
Michael

 

[SAS289]

Are you sure that's not just a throttle cable adjustment that's needed? And why would you need that spring connected to the pull start housing? That's what some do when they are running the stock throttle linkage with no governor.

 

[Jblack0884]

Has the original governor linkage/spring been bypassed, removed or otherwise disconnected?
Michael

Yeah it was half assed & rigged the spring was taken off

 

[Jblack0884]

Did you install the key for the clutch?

If it's not revving you might not have the throttle hooked up correctly. I don't mess around with stock carbs, so I don't know how the throttle cable should be hooked up for them.

Yeah I installed new clutch because my old one had popped spring on clutch

 

[creia]

Yeah it was half assed & rigged the spring was taken off

As I suspected and that might be the problem. All of that linkage and spring is connected to the throttle plate operation.
Michael

 

[Jblack0884]

As I suspected and that might be the problem. All of that linkage and spring is connected to the throttle plate operation.
Michael

So just wondering if I don't know how to mess with the linkage I'm wanting to get a new engine anyways a 212 predator Will that solve my problem if it not revving or wanting to engage? Thank you

 

[nightgrider]

There are aftermarket throttle linkages on ebay.

https://www.ebay.com/itm/Throttle-L...2349624.m46890.l49286&mkrid=711-127632-2357-0

https://www.ebay.com/itm/Predator-2...2349624.m46890.l49286&mkrid=711-127632-2357-0

 

[Jblack0884]

There are aftermarket throttle linkages on ebay.

https://www.ebay.com/itm/Throttle-L...2349624.m46890.l49286&mkrid=711-127632-2357-0

https://www.ebay.com/itm/Predator-2...2349624.m46890.l49286&mkrid=711-127632-2357-0

Was still wondering though if I get a new engine will it fix the linkage? And I don't know how that linkage up that doesn't look like mine

 

[nightgrider]

A predator is very similar to the engine that is on your bike now. It was hard for me to see the full linkage in your video. A picture would be is helpful. It looked to me that in your video the throttle wasn't being actuated much. So it was probably barely coming off idle, but it is a little hard to tell.

 

[SAS289]

Take the throttle cable all the way off. Then move the throttle by hand back and forth from full back to idle with the engine off. It should easily move back and forth. How does that work?

Then check the cable while it's off. Grab the cable and conduit with your left hand then throttle on the bar with your right hand. Once at full throttle pull the cable back out. How does it feel?

 

[Jblack0884]

Take the throttle cable all the way off. Then move the throttle by hand back and forth from full back to idle with the engine off. It should easily move back and forth. How does that work?

Then check the cable while it's off. Grab the cable and conduit with your left hand then throttle on the bar with your right hand. Once at full throttle pull the cable back out. How does it feel?

I don't understand what you're trying to say and I've tried with my throttle I took it all the way off already and it still won't do nothing it won't wherever anything Ive tried on the carb already

 

[Jblack0884]

A predator is very similar to the engine that is on your bike now. It was hard for me to see the full linkage in your video. A picture would be is helpful. It looked to me that in your video the throttle wasn't being actuated much. So it was probably barely coming off idle, but it is a little hard to tell.

In the picture you'll see I have a red circle where there was a spring stretched and wrapped around the engine block and part of the throttle assembly

 

[nightgrider]

I don't understand what you're trying to say and I've tried with my throttle I took it all the way off already and it still won't do nothing it won't wherever anything Ive tried on the carb already

What @SAS289 is saying is with the throttle cable completely disconnected. If you move the lever with the arrow drawn to it in the picture below. Does it move freely? If the nut that I've drawn an arrow to in the second image is too tight it will not let the throttle cable work the throttle. You want the nut loose enough to let the throttle work freely, but not so loose that it might come off.

For the throttle cable. With it disconnected from the engine. Just see if it works smoothly. The cable can become frayed over time and bind inside the conduit (the black cover for the cable). Which wouldn't allow the cable to work the throttle. Hope this helps.

 

[SAS289]

The governor arm is bolted to the blower housing. Wonder why that was done?

The loose spring in picture 4 is what used to be the throttle spring

You will need to find out if it still has the governor or not then go from there with the linkage. At the very least you will need a new throttle spring that is visible in the picture. If you notice the spring is connected where yours has a bolt. Does the bolt stop the governor arm from moving? It will need to go if you want to return to the stock throttle/governor arrangement.

.

 

[Jblack0884]

What @SAS289 is saying is with the throttle cable completely disconnected. If you move the lever with the arrow arrow drawn to it in the picture below. Does it move freely? If the nut that I've drawn an arrow to in the second image is too tight it will not let the throttle cable work the throttle. You want the nut loose enough to let the throttle work freely, but not so loose that it might come off.

For the throttle cable. With it disconnected from the engine. Just see if it works smoothly. The cable can become frayed over time and bind inside the conduit (the black cover for the cable). Which wouldn't allow the cable to work the throttle. Hope this helps.

Ok yeah that makes sense now because my cable in the housing on the handle grip has a kink in it & where the cable attaches is starting to flare out I'll upload pictures tomorrow

 

[Jblack0884]

I'm sure the previous owner took the governor off the bike would do about 25 top speed & where is the spring on picture is going in the back of the throttle assembly.? You must have drilled a hole.?

The governor arm is bolted to the blower housing. Wonder why that was done?

The loose spring in picture 4 is what used to be the throttle spring

You will need to find out if it still has the governor or not then go from there with the linkage. At the very least you will need a new throttle spring that is visible in the picture. If you notice the spring is connected where yours has a bolt. Does the bolt stop the governor arm from moving? It will need to go if you want to return to the stock throttle/governor arrangement.

. View attachment 287807

I'll be sending a couple of pictures My throttle cable is starting to frail Don't know if you can really tell but it's kind of twisted in the picture and some dummy previous owner drilled a hole so I cannot hook mine up like yours so any suggestions?

 

[SAS289]

The picture I posted is a governed engine. The throttle spring position is of no importance once the governor is removed.

Even after you replace the throttle cable you will need to come up with a linkage that will work properly. You need to make sure the black plastic throttle piece on the carb gets full throttle AND returns to the idle position. On an engine with no governor this can and should be verified with the engine off.

There are videos all over youtube with guys rigging up linkages after governor removal. You may find something there that may be helpful.

If the bike did only 25 mph that's a good thing because it hasn't reached rod ruining flywheel exploding rpm at that speed. They will usually get 30 mph or so governor removed.

 

[Jblack0884]

so this video should work for throttle linkage?