ninjette.org - View Single Post - Bike won’t rev past 4-5k rpm

DannoXYZ · November 6th, 2017, 03:53 PM

Hi and welcome!

Carbs never make that kind of noise, maybe some hissing if you've got a vacuum-leak; no big moving parts inside.

That "rattling noise" you mentioned sounds like loose cam-chain.

November 6th, 2017, 03:53 PM	#3
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Hi and welcome! Carbs never make that kind of noise, maybe some hissing if you've got a vacuum-leak; no big moving parts inside. How many miles on bike? Last time cam-chain tension was adjusted? Last time valve-clearance inspected and adjusted? That "rattling noise" you mentioned sounds like loose cam-chain.