New engine have rattle/grinding noise

AresROC · 09-29-2018, 08:05 PM

Took the bike out for some top speed flat out runs.

Seemingly after the bike ran over some dirt/rocks, bike is making a rattling/grinding noise. Video:

I parked the bike and checked for loose bolts. All were tight except the exhaust header can be tightened a bit more.

Rev the engine in neutral and the noise seems to be coming from the engine. Sounded as if a rock was inside, but it was not making the noise all the time, and from time to time the noise sounded really bad as if something is grinding.

I also noticed the valve noise is getting louder with its ticks.

Anyone have any idea what is causing the noise from an engine with 30 miles on it???

This is when the noise started:

09-29-2018, 08:05 PM	#1
AresROC Join Date: Mar 2018 Location: Las Vegas, NV Posts: 193	New engine have rattle/grinding noise Took the bike out for some top speed flat out runs. Seemingly after the bike ran over some dirt/rocks, bike is making a rattling/grinding noise. Video: I parked the bike and checked for loose bolts. All were tight except the exhaust header can be tightened a bit more. Rev the engine in neutral and the noise seems to be coming from the engine. Sounded as if a rock was inside, but it was not making the noise all the time, and from time to time the noise sounded really bad as if something is grinding. I also noticed the valve noise is getting louder with its ticks. Anyone have any idea what is causing the noise from an engine with 30 miles on it??? This is when the noise started: __________________ BaShan BSR 250 DB-41H 2018 Red BS250GY-18D JFG Racing Exhaust . Adjustable Shock 320mm . Brozz Digital Gauge . Renthal Fat Bar . 428 17x46 Sprocket . Fender Eliminator . Wheel Truing . Fuel Tank Repair . Keihin PZ30 Main-115 Pilot-38 Needle-1Washer Fuel Mixture-1/2 BSR Chronicles - "Project leads to more projects!" Yamaha WR250R Suzuki GSX-R 600
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