Hi All!

So I recently did a whole overhaul of my carb as it was having trouble starting. I sent it off to get professional rebuilt. I got the carb back and it starts up fine, however, it seems as though in the higher revs it bogs or loses power. I tried the 3 Turn mod on the air to fuel screw and it seemed to help a bit but still loses power in the high revs. I definitely think its a fuel issue because adjusting that screw seemed to help and having the carb rebuilt was the only thing that has changed.

Any ideas on what to try next?!

Thanks!

What size main jet does it have?

Not too sure. I live in Westchester, NY though. Any idea the correct size jet that should be in there?

It sounds like it could be a damaged or improperly seated diaphragm. Although I would hate to think that would happen with a professional rebuild.

Even if it starts great?

Yes, because the diaphragm only effects the higher rpm's. It would still start and idle fine.

I inspected the diaphragm and everything seems fine. Same with all the jets. Just does not want to run right. Any other ideas?

Anytime you have a problem pulling hard at open throttle you should check the fuel flow. Make sure the tank is full and the petcock flows properly and the float level is correct. There is very little fuel pressure and things like fuel line length filters and loops in the line are not a problem at low rpm but they are critical when the bike is using large amounts of gas. If the float-bowl can't fill fast enough the bike will bog.

Just another posiblity....

patuca

Have you fitted a freer flowing air filter? If not, what condition is your air filter in? has it been cleaned & oiled?

Yes. I checked that out. It fuel flows great! I wish it could have been that simple lol!