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2
votes
2answers
42 views

Single Cylinder 2 stroke bike with twin exhaust, will it need two chambered exhausts?

I am asking specifically about Yezdi (not in production anymore) 250/350cc motorcycles. Yezdi RoadKing was a 250cc single cylinder two stroke with twin exhaust. If upgrading to a calculated chambered ...
2
votes
1answer
47 views

Does air screw only affects pilot jet?

I have a 2 stroke motorcycle, it's Kawasaki kr150. When I try to do some jetting on its carburetor (it's Keihin PWL26), I saw that there's an air screw. So now I've been wondering about this air ...
0
votes
1answer
86 views

2 stroke scooter won't rev under load

Just put a big bore kit on a Yamaha Jog (50cc to 70cc) and am getting ~115psi compression. It will reach full rpm on the stand but on the road it won't pass mid throttle and makes a hollow/rattling ...
1
vote
1answer
45 views

What is the difference between a 2T oil and a 20-40 oil

I know a 2T oil is used in 2stroke bikes and its sometimes added with the fuel too. And a 20-40 oil also known as the engine oil is used to reduce the wear tear in the engine. I'm looking for a ...
2
votes
1answer
179 views

Small two-stroke engine runs poor

I have a borrowed cultivator (Echo TC-2100), and having hard time running it. It looks fairly new, and in good condition, but was possibly poorly stored and was not winterized. At first I could not ...