VocalNeal

Can you get 300 hp to hook up with one tire? I doubt it. I will file it in my engineering exercise folder. Triumph Rocket 3 has a bigger rear tire. Although it would be faster than my Zoomer.

Boots

Yes but only one at a time? Meaning you have to turn off the pairing on the other the two. I believe.

Ball

Wednesday

Williams had a flywheel device for LeMans cars more than a few years ago. There was also a flywheel bus.

^ & ^^ Character assassination does not really apply to a case of dodgy woodwork?

Not my thing

YES better acceleration up to the point where the road speed catches up to the transmission, say 70-75 kph for my Zoomer, from then on it is just engine power.(sic). Top speed is a factor of engine power, gearing and aerodynamics. Aerodynamics less so obviously at lower speeds. Once the weights have forced the pulleys to their maximum travel the gear ratio is set and from then on it is engine power and rpm. Some scooters have space in the crankcase for a larger front pulley so gearing can be raised a tad. But this won't effect top speed if the engine can provide the power. The gearing also can't be raised much as even with a larger front pulley the belt length is fixed so to enable to belt to travel around the larger diameter it needs to stretch. This causes extra stress, friction etc. which absorbs engine power. You might get 10% ( PCX/Click125)

The torque tube as its name suggests reacts to engine torque and attempts to squeeze the driven pulley (clutch end) together. This forces the drive pulley, front, apart and thus causes the gear ratio to change. This is how the transmission "changes down" when going uphill and applying more throttle and is especially noticeable two-up. Increasing the spring rate reduces this change down effect. I am not aware that the torque tube plays any role in acceleration as during that phase it is already subject to maximum torque and at standstill the pulley halves are already tight together. Changing the spring rate has the effect of tightening up the transmission. I.e. keeping the transmission in lower gear. This has to be matched by installing heavier weights, Keeping the transmission in its lowest gear doesn't necessarily allow the system to "relax" or change up at low load/torque cruising. The weights are the heart of the system. The centrifugal force produced by the weights moving along the "ramps" causes the pulley halves to separate changing the diameter of the contact point of the belt, this changing the ratio. As the centrifugal force has an RPM component if the weights are lighter then the RPM needs to be greater to provide the equivalent force. So the engine needs to rev higher to provide the same centrifugal force. As most scooters don't reach anywhere near maximum torque during acceleration, say 5350 rpm, fitting lighter weights allows the engine to generate a greater torque at 6500 rpm. Which is the stated maximum torque rpm for the subject engine. It is torque which moves the scooter forward so the greater the torque the greater the acceleration. It is of course a balancing act to match weights to engine characteristics. Best thing to do first is to fit a tachometer to see what is actually happening.

How far down the rabbit hole so you wish to go? I believe you need 8.5g but Lazada only has weights in 1g increments. So say 9g is closest but 8 might work also but you would have to change twice? I have bought some 8.5 weights from yamaha but not sure if they were for Nuovo135 or GT125 and were 20x12 If there is a Yamaha dealer near you and they are friendly and cooperative. Daniel from Taiwan will sell you some Dr. Pulley 8.5, I think about $22 a set plus shipping. TechPulley Malaysia will sell you set of theirs for $28 including EMS. Sent you a PM.

Killer

Recycled

Actually no. In practise, if used correctly lighter weights do not lower top speed. If the weights are too light they may allow the engine to reach the rev limiter. If matched correctly to the peak HP then the scooter will reach its maximum potential. Doesn't Forza come stock with a tachometer? Is nobody using it? BTW aftermarket exhaust seems to make more difference on a Forza but only about 3kph top speed. Seems Honda may have matched HP , gearing and aerodynamics to achieve maximum in stock form. Take my Honda Zoomer. The rpm at steady speeds has not altered much even though I am using lighter weights. At 70 kph for instance they are almost identical. Hill climbing however is vastly improved. At maximum HP before it was doing 92kph. It still does 90 kph easily. I have not been bothered to hold it wide open on the highway to see what maximum actually is. I am not using the stock variator. According to my theory I should be using about 12g but I could only find an 11g and 14g versions of my chosen weights. I haven't yet created the 12g as 11 seems to more or less OK. There is however value in understanding the theory before putting it into practise.

OK what do they weigh? 9grams or 8.5 or the like. Conventional wisdom says use 85-90% of stock.

Madonna

Who don't own or didn't build the building!

It is not the Foreign Office's mandate to act as police force and NHS abroad. They are here to provide a conduit between respective governments. It doesn't matter how much tax one pays. Once you leave the protection of your home country you are on your own. They can probably supply the name of a good lawyer if you fall foul of the law that is about all.

We need to work on your weights. I can't see anywhere on the pictures what they gave you. Put your OEM weights in an envelope and run to the post office and ask how much to post/mail. They will weigh them. Once we know that we can take the next step. Did the new weights look to be the same size as the OEM ones. Ie. 20x12. After you have checked the air filter???? If you look at the variator you bought you can see that the ends of the ramps have be "relieved" to allow the weights to travel further. So you could be set up for a possible higher top speed not acceleration.

Mohamed

Yorkie

Don't they all reduce the symptoms an thus reduce the risk of hospitalization? That is there primary effect.

What did you buy?

These children will eventually grow up and have to cross Thai roads for the next 60 years. So they need to learn how to safely do it. An overpass may effect the movement of high loads. How about some local volunteers like lollipop ladies to assist them?

Amorn