slow

My engine is a GT5 Stinger with a Jakes head and a ported cylinder body. I'm running a yz700 exhaust and a boost bottle. I also have an rt carburetor and an SBP shift kit, with an HD freewheel. My Bike frame is a Felt Vintage Iron Bolt, with a sealed gas tank. Im using the recommended NGK spark...

Long story short bike got stolen but got my racing carb and 36 tooth sprocket back. I got a new kit put it on another 26 inch cruiser but it's super slow I did everything the same as I did on my old bike I used to be able to do 35 cruising and top out at about 40+ now maybe 25? It runs good for...

I've had this built for a while but i'ts been collecting dust for at least 6 months. The thing about hobbies for me is that I'll either be completely obsessed or not care at all and right now I'm obsessed again. What I've mainly been working on now is all maintenance work for safety and...

So I've had my bike built for about a year and a half and i'm finally making an account. I've used this site a lot for help on my build, most of the questions I had were already answered and already solved my problem. I'm not sure I would of even gone through with the build If i was forced to...

Hey everyone, I'm looking to get another opinion on the issue my motorized bike is having. This is a chinese 80/66 cc "flying horse" engine and is my first build. It didn't take me too long to get it up and running, and for the first few months (despite some minor troubles to work out) it...

Recently my friend and I both bought 66cc flying horse motors and put them on micargi panteras. He has a 90 degree billet and a speed nt carb and I have the stock nt carb and billet. We both recently tested our top speeds. My bike reached 23 miles per hour and his reached 37. Do y'all think that...

So here;s what I have going on, the bike has great low end all the way up to say 22 mph. low end in fact is lovely and fun especially coming out of corners. However, she only gets to about 25mph WOT and sounds way whiny. Spark plug looks damn near perfect in color. I have a Dax RT Carb...

ok, so, i have built my second engine on a bike, the first one was with a friend on his bike, everything went fine except the carborator filter kept falling off. i built my bike on my own with a little hole drilling help from my girls dad. And my bike is solid no problems at all, everything is...