Dennis McDonaugh
Member
Looking at cables for the CT70, I see some are labeled long and others short. How do I know what I need?
I do not see pictures of the carb you have. Short cap or tall carb cap? All the other cables are determined by model, such as A 1972 K1. You could measure the cables and call CHP parts.
While you have the throttle apart to do a cable it might be a good idea to buy part number 45K from this link. Is the complete throttle rebuild kit http://www.hondaminitrail.com/ct70.html the little piece that threads onto the cable on the grip end needs to go on a specific way.
Black knob is only way bar comes off. They are prone to rusting in place. You can sometimes heat the bar just before it goes into the aluminum clamp with propane torch and with a large pliers turn on the black knob. Sometimes the knob breaks (there's plastic under the rubber), sometimes the bolt breaks, and if.your luck the bolt comes loose. The nut thing holds the black bar nut and is threaded into the handle bar holder but can't be removed until the bar comes off. Bars can be bent back into place leaving them in the holder and have it attached to the bike, long pry bars used to move bars forward or a pipe on the end to bend them apart. If you try this the aluminum handle bar holder can crack when doing this so be careful. Heat could be applied to the bar to help the bending process but might discolor or burn off the chrome. Letting the bars sit with wd40 or kroil in them may help too.
Best bet with penetrating oil/solvent is pouring it in from the handlebar, allowing it to pool at the threaded ends.
As for the throttle assembly, the parts looks very dirty but very well broken-in. I'd expect that assembly to have silky-smooth action once everything is cleaned & lubed. OTOH, the condition of that cable is best described using a six letter word, beginning with the sixth letter of the
English alphabet...which rhymes with "duct".
A new cable will make a huge difference, in the right direction. You may also benefit from the installation of a slightly stiffer & longer return spring. Take your original to a hardware store for comparison and look through the specialty hardware bins.
Even with everything cleaned up and greased real nice don't expect the throttle to snap closed. That's how us kids rolled back then, toys that shot out real projectiles,roaming the neighborhood til dinner,giant lawn darts with pointy tips and throttles that didn't return