New exhaust less power?

I own a Yamaha Axis 50 with an original exhaust. I got about 70 km/h with it. I bought a Yasuni R and removed both restrictors, but now I only ride 50 km/h, and that's after a very long time. It works like this:

At the beginning it pulls well but then it brakes somehow and accelerates very slowly up to a maximum of 50km/h

I have a new Naraku variator and a new 17.5mm carburetor

Do you know what the problem could be?

(1 votes)
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Hamburger02
5 years ago

This is a typical phenomenon in a new exhaust. Because of the pressure vibrations, each exhaust has exactly one speed at which it brings the optimum power. If this speed is significantly higher or lower in the case of the new exhaust than in the case of the previous exhaust, but nothing is changed at the engine speed, the power will break in completely.

Therefore, the speed of a new exhaust must be changed in principle so that it fits the new exhaust. This speed adjustment takes place with the weights in the variomatic. Lighter weights increase the speed, heavier they reduce. At Yasuni, lighter weights may be required. In addition, some harder coupling springs should also be installed so that the motor is not coupled at a higher speed (for the first time, when starting, a power drop before the power arrives) and due to the higher air throughput at a higher speed, the main nozzle should also be selected to be larger.

olfinger
5 years ago

Voting that alone would be word enough to describe your problem, but GF unfortunately does not allow answers with only one word.

19Michael69
5 years ago

Then he’s running about as fast as he can;-)

That’s what happens when you just do something without paying attention to what this ominous freezing has for effects.

It doesn’t work if you just sit around here and there “indefinitely” and “planlessly”.

You know that if you only own the driving license class AM, you commit a criminal offence at more than 45 km/h with driving without a driving permit?

Best regards

Michael

19Michael69
5 years ago
Reply to  Nobody24

I’m sure it’s not stupid.

There is enough here to freeze, not have the required driving permit and do not know that it is a crime.

And if you don’t want to have any correct and, above all, YOUR answers, ask in the Middle East.

wildpark6
5 years ago

Vote is the motto…

just build something on it without having plan what is happening there is simply stupid..Yasuni garbage is after Stage6 the most forced confiscation ground..