Speed up hill

[jc]

Live in the mountains I have 2016 wolf blaze. Looking for more speed up hill..

[gsx600racer]

Stiffer contra spring, lighter rollers. With those changes you may sacrifice top end speed on the flats.

[tortoise2]

Jun 7, 2017 9:04:15 GMT -5 jc said:

I have 2016 wolf blaze

50cc or 150cc?

[90GTVert]

Getting the tune right is nice, but a 49cc really doesn't have good power for mountains. A big bore kit would be my first choice, along with tuning the carb and CVT after the BBK install.

[humanshield]

"I live in the Mountains"....

I agree with Brent. A 50cc is NOT suitable for riding in areas with lots of inclines.
A 150cc scoot would be fine.

You need TORQUE for pulling weight up hills. A 50mm BBK and A9 cam would help...but still, TORQUE is what gets you up those inclines. I would consider a 150cc to be a minimum requirement in a very mountainous area.

[matt2015taotao]

I live in the Mtn's of WNC. I went from doing 15-20 mph to 25-30 on the same hill. Other hills where it would do 25 it now does 35 give or take a few mph. Flat roads it easily runs 40 to 48 mph with decent throttle response.

Like mentioned above a 50cc isn't going to pull up hills regardless of what you do but it can definitely improve and it doesn't cost much. Sure I would have got a bigger bike if I could but at the moment I can't legally ride one. I would be on a motorcycle like I am used to.

Here is what I did.
72cc bbk
19mm Keihin carb with the needle set on the middle groove and a 88 or 90 main jet depending on season. A/F screw is turned out 2.75 turns
Stock air box with no restrictions, keep the filter clean
5gram rollers
1000 rpm clutch springs and a little weight drilled out of the arms
1500 rpm Contra Spring
Keep the TQ drive lubed
Slotted the pickup to adjust the timing slightly. Don't mess with those aftermarket CDI's and Coils, they will gain you nothing.
Keep your air pressure at 36psi - This does make a noticeable difference low air pressure creates drag.
Quality oil and keep it fresh, I use Rotella 10w30.
Synthetic gear lube
NGK Iridium plug
Valves at .004 on both
Make sure your front brake isn't dragging
Keep a good belt on it, bando seems like the one.
Premium gas
Vent the CVT cover.  This lets the heat escape that otherwise heats the contra spring making it softer which keeps your pulley from closing as fast or as much.  I had very good results doing this.

I don't know if the aftermarket exhaust really make any difference or not. Seems like there are a lot of mixed reviews and looks like a lot of them are very cheaply made.

It sounds like the A9 cam is good for a little power. I may do that soon.
From what I've read it looks like a good variator is one of the better things to do. I am looking at the Malossi. At that point I think I will be done. Seems like I would be running into a point of diminishing returns. You can only milk one of these little motors for so much then it's kinda like pissing into the wind and wasting $.

These changes made mine go from barely tolerable to decent. It is fun to ride around curves and in town. I don't hold up near as much traffic because now if the road is even close to flat I can cruise 40-48 mph easy and that is with the gps on my phone not the speedometer which is very optimistic.

Think that is it, hope it helps.

[PIG]

Buy a 2 stroke, put a l/c hyper race motor in it and enjoy going 70mph up any hill. Lol

[90GTVert]

Jun 9, 2017 19:07:57 GMT -5 PIG said:

Buy a 2 stroke, put a l/c hyper race motor in it and enjoy going 70mph up any hill. Lol

Don't know that you need to go quite that far. lol A good 2T (Minarelli/Piaggio) with a mild 70cc and a pipe should be capable of 50+MPH on flats and pull up hills well. I ride big bore/strokers a lot and they'll pull my 300lbs quite well. I live in really flat area, but I'm confident it would pull up inclines harder than most 4T builds. In a timed race, it was close to my 155cc's acceleration... but I only used ~1/2 throttle for the 2T.

Still, a 47mm big bore for the scooter you have should make a very nice improvement in pulling power and can be done at a low cost. There's a tradeoff of reliability/longevity vs a stock engine, but that's the case with any platform that you mod to some degree. More power and larger, heavier pistons are a bit tougher on parts.