No Power By randyjaco (Read 386 times)

[randyjaco]

I have a Verucci 150,which has been running OK.  It starts quickly and runs smoothly.  But when I twist the throttle the engine bawgs down.  The max speed is a  measly 26mph. 
The spark plug indicates it is running a little rich, but is properly gapped and clean. The plug is firing with a nice blue spark.  I am getting good fuel flow to  the carburetor.  The fuel is fresh. The wiring is tight no evidence of grounding out. 
What am I missing? 

Randy 

[jct842]

When was the last time the valves were adjusted?

[randyjaco]

They were adjusted about a week ago. 
I bought this about 2 weeks ago. It was non-running.  I cleaned out the fuel system/carb, set the valves, checked/replaced questionable hoses, redid brakes, new battery, replaced rollers and belt, changed fluids, checked exhaust system.  I have since put about 200 miles on it. I cranked it yesterday and headed down the street and the problem started? 
I have a good amount of motorcycle experience. This is my first Chinese scooter.

Thanks 
Randy 

[jct842]

It still would not hurt to lift lift the valve cover and double check those valves.

[randyjaco]

Thanks guys,  I figured it out.  It was the carburetor.  A tiny piece of something was lodged in the main jet.  When I looked at the jet in the light the hole was not round.  I  ran a #55 drill bit through it, put it all back together and problem solved ☺️
Randy 

[jct842]

When ever I hear about some thing in a jet I get wondering about the hoses and fuel filter. Both should be up for a change.