CT 70 runs good warm but doesnt like to be cold...

[Xander]

Im looking to trade a guy speakers for a CT70. He just had it tuned, new air filter, battery and some new wiring. And I quote "Runs good once warm, but doesn't like to be cold." Basic minibikes im okay with, but Honda and geared minis I'm not. I have no idea what to think this problem would be. Any ideas out there guys.
Thanks
X

 

[capguncowboy]

Normally, poor running when cold is a carburetor issue

 

[creia]

Knowing the value of that bike, if that CT70 is in even halfway decent condition, that must be one hell of a set of speakers your have to trade!?
Michael

 

[catfishman]

I was thinking the same thing, Michael.

 

[bruces]

Clean out the carb ,adjust the valves ,you should be good to go .

 

[pomfish]

Im looking to trade a guy speakers for a CT70. He just had it tuned, new air filter, battery and some new wiring. And I quote "Runs good once warm, but doesn't like to be cold." Basic minibikes im okay with, but Honda and geared minis I'm not. I have no idea what to think this problem would be. Any ideas out there guys.
Thanks
X

If the air filter has been changed from stock to a Cone type, the carb should be re-jetted. When they get more air they want more fuel to keep the ratio proper.
HTH
Keith

 

[Xander]

I made the trade, it runs fine. It just needs some minor stuff

 

[creia]

View attachment 87271 View attachment 87272 View attachment 87273
I made the trade, it runs fine. It just needs some minor stuff

Straight across trade for the speakers? (You did good!) That bike is in decent condition- what type of speakers and what was so special about them?
Michael

 

[Bumblebee2]

Im looking to trade a guy speakers for a CT70. He just had it tuned, new air filter, battery and some new wiring. And I quote "Runs good once warm, but doesn't like to be cold." Basic minibikes im okay with, but Honda and geared minis I'm not. I have no idea what to think this problem would be. Any ideas out there guys.
Thanks
X

The choke on that may not be closing all the way, or on some of these there is a "trap door" on the choke plate, the spring my be busted. Also, check the float level and that the jets are all clean, including the atomizer tube (above the main jet, one the jet is removed it unscrews). Also, replace the rubber intake boot from the carb to the engine, in time these things crack and allow air leaks.

And a CT-70 for a set of speakers? Go for it!!

 

[ZR9B]

yes...what kind of speakers...also looks like you did good

 

[Xander]

hi all,
yes it was a good trade. just 4 behringer 1020s, stands and a mile of cable. it was given to him and he had no idea or care of value. it was true bartering. he had something i wanted and i had something he wanted. i do need to splice the sparkplug wire. that was the problem, not carb. The lights, horn and speedo all work. I need to get a muffler cover

 

[Bumblebee2]

Just about anything you need for that CT-70 is available today. They made a gazillion of them and there are copies still made today.

I could see why he went for the trade. Those speakers + big amp and some music on a laptop = $$$. Can you say DJ?

 

[Xander]

4 behringer 1020s, stands and cables. He wanted my speakers and had something of interest to me. It was a great trade.