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Troubleshooting > Failures par brand > VENT > My WIND 50 motorcycle grazes

My VENT-boxed 50cc grazes

Your mà © caboîte 50cc VENT grazes when you ride? This can be due to several issues. It is possible that your machine will graze when you are driving at 60km / hpar example, or when you are just starting out. In 90% of cases it is a problem gasoline. Indeed, if there is too much gasoline in your engine, it will be difficult for you to obtain optimal performance.

my VENT grazes at low speed

Your VENT grazes at low revs

If your VENT motorcycle is grazing at low rpm, the problem is most likely due to the carburettor. In fact, most of the time it is a main jet too small. It depends on the changes you have made to your WIND but you are probably too low on fuel.

Example: You have a 50cc VENT motorcycle with a stock engine. You decide to install a new exhaust and a carburetor from 19. Your machine will graze at low revs if you leave the 75 (stock) jet on. Rather, it will be necessary to switch to a jet of 85, see 90 or 95.

It is also strongly recommended to check the good condition of your spark plug . If the problem persists, perform a carburetor adjustment. Finally, it can also be a cylinder head gasket damaged. In this case, it will have to be replaced (or have it replaced par a two-wheeler professional).

Your VENT motorcycle grazes at high revs

If your VENT motorcycle is grazing at high revs, the problem is also due to the carburettor. Indeed, most of the time it is a concern of gasoline. It depends on the modifications you have made to your VENT but you are probably too rich in gasoline.

Example: You have a VENT motorcycle with a stock engine and a 110-inch jet on your carburetor. At high revs, your machine has no more power and jerks when accelerating.

Start par check the condition of your spark plug, if it is black, this effectively means that you are too rich in petrol, you should try smaller nozzles. Going down from 5 to 5. Check the spark at the spark plug, the muffler (it may be clogged) and the condition of your air filter.

Also check the condition of your base gasket. Indeed if the latter is damaged, air comes in and this can cause your WIND to graze.

Finally, be sure to use high-quality gasoline, this can be one of the causes of a grazed WIND.

my WIND grazes at high speed
my VENT grazes at half throttle

Your WIND grazes at half speed

If your VENT motorcycle is grazing at half throttle, the problem is most likely due to the carburettor. It is imperative to carry out a carburetor adjustment.

Start par adjust the richness screw while increasing the jet from 2 points to 2 points. You will quickly find the right compromise for your carburetor.

Finally, you can carry out an adjustment of carburetor needle (take it up a notch par example).

An electronic problem can also be the cause of a motorcycle that grazes at mid revs. Check the condition of the CDI box, electronic clamping and ignition if necessary.


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