Poll - How fast does your 125cc go? (Vader / Razkull / etc)

[Skin Mechanic]

Originally Posted by culcune

...If my theory is correct, you shouldn't regret getting an actual Ice Bear product...

I don't regret buying it, but the quality doesn't appear to be any better than the others. I put the replacement tail light on last week, I've ridden it twice since then and the LEDs are starting to burn out. I'm going to ride it about 60 miles tomorrow morning, but not without reinstalling the tail light I bought from amazon. The instrument panel is also giving me some issues, but it's to be expected. Buying a new Chinese bike is like buying an old British bike. I'm expecting to find the Lucas logo on the wiring harness

Originally Posted by prismways

Hey Skin,
can you give us details on your racing CDI and coil? What benefit does that provide in performance?

Really loving how it rides with the 16T sprocket!

The coil provides higher voltage to the spark plug and the CDI eliminates the rev limiter. The stock CDI on my bike had a 6500rpm limit. With the racing CDI I can wind the engine up to 9000rpms, or until it flies apart. Of course now that I put the 17t sprocket on it, I won't need to go beyond 8000rpms when I'm riding the back roads, which was my main reason for buying the bike.

[prismways]

Is this the setup that you put on your bike?

http://www.ebay.com/itm/252733203584

do you think it can be contributing to your electrical system issues?

I saw this very comprehensive video regarding this upgrade and the guy got minimal improvements. Granted he worked on a 49cc moped, but still, it should be a much better improvement if you're going to go through the trouble.

Originally Posted by Skin Mechanic

The coil provides higher voltage to the spark plug and the CDI eliminates the rev limiter. The stock CDI on my bike had a 6500rpm limit. With the racing CDI I can wind the engine up to 9000rpms, or until it flies apart. Of course now that I put the 17t sprocket on it, I won't need to go beyond 8000rpms when I'm riding the back roads, which was my main reason for buying the bike.

[prismways]

Has anybody ever tried this to see if it improves performance?

I guess it's like going from a A7RTC to an A7TC spark plug?



this next video does a good job of showing the type of spark you get from a non-resistor spark plug compared to one with a resistor

[Skin Mechanic]

prismways, I don't think the ignition upgrade is causing the electrical problem. It's probably a bad ground. The CDI and coil look like the ones in the ebay link, except my CDI has a 5-pin connector, and it was about $18. I haven't tried the non-resistor plug mod yet. I don't see why the guy in the video would waste time on an aftermarket ignition for a scooter with a CVT. If he wants to improve acceleration or top end speed he needs to swap out his pulley weights. Regarding the stripped bolt hole, you can shim the bolt by wrapping the threads with electrical tape. It's not a fix I would use on a motor mount bolt, but it'll do fine for a sprocket cover.

MOTOXtreme, What the ankle nipper lacks in performance it more than makes up for with the fun factor. If it had been on the market 2 years ago, I wouldn't have bought the Aprilia.

[prismways]

Did you notice an improvement after upgrading your coil and CDI?

thanks for the tip on the stripped bolt hole, I'll give it a shot.

Originally Posted by Skin Mechanic

prismways, I don't think the ignition upgrade is causing the electrical problem. It's probably a bad ground. The CDI and coil look like the ones in the ebay link, except my CDI has a 5-pin connector, and it was about $18. I haven't tried the non-resistor plug mod yet. I don't see why the guy in the video would waste time on an aftermarket ignition for a scooter with a CVT. If he wants to improve acceleration or top end speed he needs to swap out his pulley weights. Regarding the stripped bolt hole, you can shim the bolt by wrapping the threads with electrical tape. It's not a fix I would use on a motor mount bolt, but it'll do fine for a sprocket cover.

MOTOXtreme, What the ankle nipper lacks in performance it more than makes up for with the fun factor. If it had been on the market 2 years ago, I wouldn't have bought the Aprilia.

[Goody302]

Took my vader out yesterday for a top speed run. Have Aodonly exhaust, 16t sprocket, mikuni 26mm carb, 110 jet. By a tree line with no wind, 61MPH. Into the wind, like 10MPH breeze, 55MPH. With the wind, 64MPH. Factory speedo tho. Buddies z125 PRO speedo was same as mine at 50MPH. We raced, his is all stock, I steadily pull away from him through the gears. Not like blow his doors off, but by time I hit 4th gear, I got 2-3 bikes on him. Had fun!!

[prismways]

Nice! to be honest, I'm hesitant to drive at 60+ on the bike. It vibrates so much and buzzes everywhere and the handling feels unstable, it makes me want to slow things down before it flies apart.

If it had a fifth gear, I think that would help the most. I know some of the other bikes do have a fifth gear.

Originally Posted by Goody302

Took my vader out yesterday for a top speed run. Have Aodonly exhaust, 16t sprocket, mikuni 26mm carb, 110 jet. By a tree line with no wind, 61MPH. Into the wind, like 10MPH breeze, 55MPH. With the wind, 64MPH. Factory speedo tho. Buddies z125 PRO speedo was same as mine at 50MPH. We raced, his is all stock, I steadily pull away from him through the gears. Not like blow his doors off, but by time I hit 4th gear, I got 2-3 bikes on him. Had fun!!

[Skin Mechanic]

Originally Posted by prismways

Did you notice an improvement after upgrading your coil and CDI?

thanks for the tip on the stripped bolt hole, I'll give it a shot.

My unscientific butt dyno registered an improvement in acceleration over the original set up, mainly because of the extended rpm range. With the stock CDI the bike wouldn't even reach the 7000rpm redline.