FZRSupport: the FZROnline Archive

Hi I posted recently on this forum (fzr400rr advice) and it does look fair definate now that my bike is over fuelling

I done a service on it including new battery Nd fuel filter. Now its spitting flames out the exhaust. Although this looks very cool it leads me to assume my carbs need setting up. Tbh I ain't got much experience in sorting the fuelling mixture out

Does anyone have any advice before I start attempting it

bigrich,

First have a look at this http://fzronline.com/wiki/doku.php?id=carburetor_page You should get used to looking for technical stuff in the WIKI section (orange button at top of page). These bikes are pretty old so even if they were cared for the carbs need attention. Most owners can not afford to take it to the shop so we learn how to take care of the carbs ourselves. It looks intimidating at first but is not too difficult. Take your time removing them and get them to a CLEAN table. I work with an old bath towel on the table so if a little part gets away from me it doesn't bounce and roll away. I also use an old muffin tin to sort the parts and keep everything tidy.

If you have aftermarket exhaust or inlet filters, then you probably need to install a jet kit as well. My bike was shooting flames out the can when I got it. The main jet was way oversized. For some reason, that is what people do. I cleaned them up and installed a jet kit. Did all the adjustments and it runs great. Warning: carburetor work will be iterative - you will have them in and out several times to get it all running correctly.

You can do this. Just ask questions as you go and don't get in a hurry.