Hi Everyone, I bought a 1974 KZ400 cafe racer last week and I am not getting the speed that I expected in low gear. When I throttle it the engine is limited in power. The cafe racer has an aftermarket dual straight pipe exhaust and a K&N air filter hung on with a hose clamp off the carb. There...

I have an 08 hyosung gt250. I got this just as a bike to mess around with. It starts up perfectly fine but it dies around 2/3 throttle, around 3400 rpm. I figure it's the jets because it did come from a different state. My current elevation is 4500 ft and temperature is between 60-95 so if...

Hi all, Quite new to motorcycle maintenance here - recently I left my 2004 Ninja 250 sitting for a few months. It was running a bit rough when I returned to it so I pulled the carb and use carb cleaner and some wire to clean the main and pilot jet. This is a procedure that I've completed...

I had idle issues a while back and found a vacuum leak that I fixed. I checked it again today and there seems to not be a leak. I went on a ride today and after a short time the bike would idle at close to 5k (even went up to 7k right before I was trying to check for the vacuum leak. I have...

So my bike idles fine when I cold start it. I almost always have to have the choke on to make it start. Today I rode around for maybe 30 minutes and as the ride went on the idle kept inching up and eventually when I was done it idled at 3000. I have read on other forums people having this...