The bottom end of the engine creates Grinding Noise When the bike is in load condition and this strange sound goes away when the bike achieves proper speed that means no load. Actually This problem happened in 2013 when i was riding the bike in top gear (5th) at very low speed suddenly i heard a breaking sound something in engine or drive chain. Then i visited to S.V.C. they insisted me to change clutch plates, i replaced it but no single change i noticed. i have changed cam chain, clutch plates and Valves with their seals, Tightened Drive chain according to the manufacturer specs but no change i got. And one thing more is that bike is very slow when it comes to pick up and suddenly engine stalls even if iam pressing half clutch at 3000 RPM in 3rd gear, before this problem was common in 5th and 4th Gear but now it is common in 3rd and 2nd. the Gearbox has bit heavy shifts now. i got check bike Compression, Piston Rings conditon and Crankshaft connecting Rod Clearances. Everything was perfect, So where is the problem.

Motorcycles - Bajaj - Pulsar 150 - 2011 Bajaj Pulsar 150