Cranks at Wide open throttle!!

H

Hebrew

New Member
#1
#1
New here guys. Tried the search bar looked back at old post. I am sure this has been asked numerous times.
Got a Coleman ct200u . Used will be kids Christmas gift.

carb filter housing was missing ordered new housing and carb. And throttle installed new parts

cleaned intake changed oil cleaned gas tank new fuel filter.

When I crank it up it goes wide open throttle. Tried to adjust the governor turned it counter clockwise might be wrong way for this motor not sure
When I hook the spring up that goes around the governor rod it goes wide open throttle checked that with the motor off of course lol

Mayan the springs are in the wrong places

thanks
 
H

Hebrew

New Member
#5
#5
Watched the video noticed the governor and throttle moves at the same time when throttle handle is turned. I do know that mine does not do that. I installed a new throttle assembly guess I have something screwed up somewhere between were the cable attached to the throttle assembly and governor

will check this afternoon
 
Harquebus

Harquebus

Well-Known Member
#6
#6
There's wide open throttle and then there's governed wide open throttle. The former is an absolute terror. Had that happen where the throttle butterfly plate disconnected from the shaft it rotates on. The only way to slow it down was with the choke. The plate was stuck in the intake right ahead of the intake valve. Anyways...

If it's still kicking your butt, post pics of the throttle assembly, where the cable is attached at the governor/carburetor or anything you think will help. There's guys here with skilled eyeballs.
 
J

JimN

Well-Known Member
#9
#9
The governor adjusts in the same direction that the gov. arm is pointing. Clockwise. Loosen nut rotate arm clockwise, rotate shaft clockwise, hold in position and tighten nut.
The carb butterfly is going to be open when the engine is off. When the engine starts it closes to the idle speed screw position.
I'd take the carb off and make sure nothing is sticking with the butterfly and choke, verify gaskets are okay and in the correct orientation. Check the plastic carb spacer for cracks.
Since it's a used engine, check valve lash and change oil if you haven't already.
If you haven't, check the nut holding the throttle arm on top of the the throttle plate to make sure it is not to tight or something is wedged in there binding it up.
Check idle speed screw setting. If everything looks kosher, put it back together and start it with out the throttle cable hooked up.
 
H

Hebrew

New Member
#10
#10
Will try this afternoon trying to locate a new pull cord and spring assembly. Being it was used and set outside the pull rope will not recoil
All hanging out
Trying to find one on a
I was able to drive it around the yard yesterday but I had a return spring hooked to the front of the motor pulling the governor arm towards the front of the bike. Had to keep ripping the throtttle to keep it going would not idle.


Thanks for the reply
 
sparkwizard

sparkwizard

#11
#11
As suggested earlier, REMOVE the cable from the engine entirely. Make the engine run correctly without the cable. Get the rear tire off the ground, or (preferably) remove the chain for safety and testing purposes. Please let us know how it works without the cable installed. I do not think I'm the only one who suspects your cable is holding tension on the governor spring.
 
H

Hebrew

New Member
#12
#12
sparkwizard said:
As suggested earlier, REMOVE the cable from the engine entirely. Make the engine run correctly without the cable. Get the rear tire off the ground, or (preferably) remove the chain for safety and testing purposes. Please let us know how it works without the cable installed. I do not think I'm the only one who suspects your cable is holding tension on the governor spring.
Click to expand...
Ok will try that tomorrow after work couldn’t find a new pull cord and spring today will go to the small engine shop tomorrow after work.

i do remember when I got the bike the original twist throttle cable was broken.

installed a new carb. Put the return springs on that goes around the governor arm it pulls the throttle wide open and pulls the governor arm towards the rear of the bike. and crank up wide open never idled down killed it with kill switch everytime scared of blowing the engine.
As stated earlier I ran it yesterday but had a spring running from the gov arm to the front of the bike which is wrong. Just tried to get it running.

I adjusted the governor rod but I turned it counter clockwise . Regardless if the governor rod turns freely could it be a problem inside the flywheel where the weights balance out and puts it back and idle upon cranking ???

just wondering that’s what a read how the governor works. With engine off throttle is wide open once cranked it knocks it back to idle.

Will try what yall said thank you for your response will report back
 
sparkwizard

sparkwizard

#14
#14
There are 2 springs near the center of this picture. the little one is around the throttle actuating rod, the other one is right above it.
Is that upper spring the one you replaced? Where did you get it? Did you bend the end of that spring? It looks kind of "tight" to me.
1766429055285.png
 
H

Hebrew

New Member
#15
#15
Was on the bike when I got it.

With everything off. I can hook up the throttle actuating rod and the throttle stays closed
When I hook up the spring that’s around the rod it pulls the governor arm and throttle wide open towards the rear of the bike.

I see what u mean that spring looks like it has tension on it

even with just the spring around the the rod hooked up is it supposed to open the throttle wide open ?
 
sparkwizard

sparkwizard

#16
#16
the little spring around the throttle rod should open the throttle when the engine is not running, so you don't have to hold the HAND throttle open. When the engine starts, the governor should PULL on that rod to close the carb to the idle screw position.
When you open the HAND throttle, the cable pulls that big, silver handle rearward, stretching the spring we are talking about...
That opens the carb throttle and the engine revs... the governor pulls on that spring to control the RPM by closing the carb throttle as the engine revs. IF THAT SPRING IS TOO TIGHT, the engine will do what you are describing. I think that spring is your problem.
 
H

Hebrew

New Member
#18
#18
Could not get a pull chord assembly so I improvised and used a socket.
Removed gov arm turned shaft clockwise installed arm and tightened
removed the throttle cable
Wide open throttle

even removed that spring you mentioned
Only thing hooked up was the throttle actuating rod and the spring around it.

wide open still. I runs, just wide open.
When I try to pull the governor forward maybe I go to far and it dies.
Thanks
 
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