Hello From Dalian, China

[blaked]

Hi,

I am a Canadian expat living in Dalian, Liaoning Province, China. I have a 90cc 2 stroke on the road, and am preparing for a tour to the city of Dandong on the border of North Korea, along with 24 friends, colleagues and acquaintances.

My engine is new. I fried my last one, using too liitle oil.

And as a newbie to 2 stroke biking, I have a couple questions. Is the "jet" the exhaust exit from the cylinder?

Should there be a tiny air intake in the gas cap?

Will a larger exhaust cylinder/pipe give me more power.

I realize that new engines need some break in time, but I'm bogging a bit (still paranoid about using too little oil so my mix may be too rich. I'll have to check the plug)

Cheers to you all,

Blake

[NEAT TIMES]

Hey Blake, Welcome To The Forum. The Only Jet I Know Of Is The Carb Jet For Controling Air Fuel Mixture. The Exhaust Systems With Expansion Chamber Are Said To Add A Lot To The 2 Cycle Engines Performance. What Cycle Do You Have With 90cc?? MANY RIDERS HAVE HAD PROBLEMS WITH NON VENTED GAS TANK CAPS, THEY CAN AIR LOCK (VACUUM LOCK). Ron

[Weedylot]

Seconded on the "jet" definition from Neat Times, it's a device to regulate air/fuel mixture, it resides in the carburetor.
If you open the cap immediately after riding for a few miles, and it hisses with air being sucked in, then you need a vented cap.
Welcome to the best motorized bike site in the galaxy,

[ernie hammer]

I had a problem with the intake to cylinder gasket soon after i got my 80 cc bike installed and running. This caused a "BOGGY" throttle response and diffucult starting.

This might be something to check

[ernie hammer]

I have had some problems with the rear wheel bearings has anyone else had this problem

[Dave31]

Welcome to the forum, glad you joined us.

[blaked]

Thanks for the welcome.

My bike is a Hong Qi (Red Flag) brand. A old-school style single speed Chinese bike. All the riders on the tour we're planning have similar bikes.

I am going to take all the suggestions I received in the last 24hrs here and see if I can fix my acceleration and my bogging problems in the next couple days.

Thanks Again,

Blake

[blaked]

And one more thing,

I did have some issues with the real wheel assembly; the issue resulted in difficulty pedaling and overheating the engine. All good after repair.

[NEAT TIMES]

Blaked, Bears Love Honey, We Love Pictures!! I HAVE NEVER SEEN EVEN PICTURES OF A BIKE LIKE YOURS. Again, Welcome. Ron