ninjette.org - View Single Post - EX300 Header inlet size vs. EX250J inlet header size

Yamahawk · November 27th, 2015, 06:16 AM

Are the header sizes the same o.d. on the EX300 and the EX250J model? I am curious if they are the same size at the exhaust port, or if the EX300 has larger pipes?? This is for a race project and if they are larger, I can cut and weld them for my application. Thanks!

November 27th, 2015, 06:16 AM	#1
Yamahawk Chaplain Name: Charlie Location: Toledo Join Date: Nov 2015 Motorcycle(s): 75 RD350 race bike, 82 XZ550RJ Vision, 81 XV920RH, 89 VTR250 Interceptor race bike, 06 Concours, 86 EX250E1 Posts: 153	SOLVED! EX300 Header inlet size vs. EX250J inlet header size Are the header sizes the same o.d. on the EX300 and the EX250J model? I am curious if they are the same size at the exhaust port, or if the EX300 has larger pipes?? This is for a race project and if they are larger, I can cut and weld them for my application. Thanks! Last futzed with by Yamahawk; November 27th, 2015 at 06:12 PM.