500 Two-Stroke Tech

Hi guys just wondering when installing in line check valves can you keep the original valves in or do they need to be removed.

Yes you can. I did it on both bikes. The hard part was i could not locate a barbed fitting with the proper threads to go in the pump. My back has been used on the track for a lot of miles and no issues. Are you installing under the crank seal cover?

Hi thanks for the reply I will be installing the plastic ones in to theblack lines just after the original check valves. So question is do I need to remove the original check valves or leave them and just cut the hose lines and install the new check valves.

Just cut the lines and fit them. Leave the oem check valves in place.

Thanks

Been told these fit the pump so you can remove the OEM check valves

https://www.advancedfluidsolutions.co.u ... KmS9mGOVl4