hi
the problem is my bike wont rev up it idles fine but as soon as you get past 1/3 throttle it starts to back fire and run rough,also when i start to rev it it is very sluggish,before it got this bad it would go really good for a while then play up(usually out the back of nowhere).i got a new carb fitted about 1 month ago and know that it fine,i was thinking something to do with the electrical side of things.any help where to look would be great

 

It sounds like the main jet is clogged. I know you said that you had a new carb, but if the tank is old, you may have passed some junk into your new carb. Did you use a seperate fuel filter?

 

thanks for your reply
yes the carb and tank have been cleaned and checked out ok.any other ideas?

 

I don't know. Mine did the same thing, and it was the carb. If I were you, I would double check the main jet. As far as the ignition goes, backfiring could be caused by low primary voltage, that will allow it to fire at low RPM's, but will cause backfiring at higher RPM's because it takes more voltage. I don't know much about the ignition on the Bayou. Is your quads charging system working OK? It turns over pretty fast when you hit the starter button?

 

no worrys thanks for replies
i will try the carby again,it seems to be getting enough fuel its like it it runs out of spark or something,also it goes a bit better when the choke is on?

 

dangerously lean???

 

Yep, It's lean.