150cc Roketa Throttle Cable By waterboy179 (Read 5,403 times)

[Cruiser]

Hey waterboy179. The body style of your scoot is similar my VIP50. I noticed that the throttle cable made a weird angle as it went into the plastic near the throttle end. I made a new hole and rerouted to ease any strain on the cable. Your cable may or may not be routed the same way.

[Scooter Boy]

You could try cutting some of the black outer cable housing off to make it a little shorter. This will allow the inner cable to extend farther out. Be careful and don't cut too much off and don't nick the cable either.

[waterboy179]

I'm still working on getting the throttle cable to work. Can anyone post a pic of where the throttle cable attaches to the carburator. Maybe I am attaching it wrong.

[Alleyoop]

This is the best shot I have of the throttle cable. There is a bracket on that side and the throttle cable thread parts goes into the Hole on the Bracket then the actual cable hooks on to the Throttle control wheel. Then on each side of the Bracket Hole there are two NUTS that screw tight against the Bracket hole to hold it there.
Alleyoop

[waterboy179]

This how the original throttle cable looked on it.



I think I am not getting something located correctly and that is causing me to not have enough cable length. When I tried to attach it I either had enough to wrap it around the throttle or wrap it around the throttle grip but not both. Hopefully I will have time tonight to work on it.

[Alleyoop]

Well you have it hooked up to the Carb correclty, I bet it is the way you brought it up to the hand grip Find a shorter route going up to the handlbars.
Alleyoop

[evilgenius]

OK, I think I may have some info with some bearing on this.

If you've seen my recent thread, you'll see that I'm dealing with throttle cable issues too. I ordered what appears to be the same cable you did.

Long story short, I've hooked the cable up and the carb side of the cable takes up virtually all of the slack at maximum extension adjustment. My throttle grip is like yours, and the others are correct about you having the peg in the wrong position. Even in the correct position, mine was holding @1/2 throttle at all times. Note that the cable itself had slack on mine, but it was the overall cable draw that was too short. I did adjust all adjustments to their maximum (or minimum, depending on how you look at it) in order to get maximum draw length, and still it was just *this* much too short. Total draw between both ends was @85mm at max. Basing on the 72/76" quoted dimensions, there should have been 101.6mm of draw. No matter how I adjusted, that was the proverbial "it".

I tried to trim back the sheathing and buy myself the extra 15mm or so travel that would put me back in business, but encountered epic fail when I accidentally nicked the cable when cutting away the loom. Metal coil-wrapped loom, this is a real pain to try and cut, only try as a last resort, because one slip and you'll kill it like I did.

The cable itself is listed as being applicable to your body type. I noticed yours is a 150 variant on the same frame that a lot of 50's are built on. It may be possible that the shorter draw would work great...on a 50cc carb, which *could* be smaller than ours, despite having the same connecting hardware. My carb's a basic Walbro-yours is...?

Of course, there's always a possibility that Wang was having a bad day at the throttle cable factory and decided to have a little joke on us by cutting all the cables 15mm too short. Just as likely, really.

Edit: Thinking best solution may just be a bigger cable. Anybody have any info as to whether throttle cables scale proportionally? I see 78-80" cables on Ebay, but the question is whether the longer cable length is indicative of increased draw, or merely more cable length with same draw...

[sprocket]

See photo.. looks cracked

You need to get a good heavy bead of 'red' high heat silicone around here...

Attachments:

[sprocket]

evilgenius you are right. What matters is the distance from the mounting point to the lead slug on the cable end, or as you say 'draw'...on both ends...

[evilgenius]

Thanks, sprocket!

Problem hopefully solved! <crossing fingers>

I've got an "80-ish" length cable (79" sleeve-to-sleeve), with 4.5" of draw on the way. Thus gaining about 29mm of usable cable length, as well as some breathing room for wire routing. I'm thinking this should be about perfect for my app.

So...to the OP: First, pull all the slack to one end and see how much draw you have total (metric pocket scale's perfect for this). Next, mock assemble and estimate how much more you'd need for things to assemble smoothly at mid-adjustment settings. Consider length you need for routing, and see what you can find! It's kinda difficult to find vendors who'll list the actual draw length, oddly enough. Some ebayers list draw length in a roundabout way.

Scooterpartsmax seems to have good visuals regarding:

[Alleyoop]

GREAT POOPER SCOOPERS guys. The Draw is what is important just as long as the cable length reaches the Grip and the Throttle Bracket on the Carb.
Alleyoop

[waterboy179]

Thanks evilgenius for your insight into our similar situation, I thought I was crazy or something. Talking to my local scoot shop they recommended I figure out the length I need and take my online purchased cable to a custom motorcycle shop and have them make a cable. I'm hoping to hear the good word from you about the cable you bought and go that route instead (probably cheaper). My only worry is how long does this cable last before I need another one.

[waterboy179]

Forgot to give thanks to Sprocket for the heads up, I noticed the cracks and have a new intake on order to replace it.

[waterboy179]

Well, I got my throttle cable installed and finally got to ride my scooter yesterday! I ended up just taking the cable to a custom motorcycle shop and told him the cable length I needed. He took what I bought online and routed a new cable and used these fittings on the end (shown in picture below). All he did was put on the barrel and heat it up with a butane torch inside of the stop. Now I know how to make my own if this breaks again.



I also found them online under "cable stops" at www.cyclewareables.com/pages/cables_controls_part/cable_control_parts.htm