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General Category => General Discussion => Topic started by: DARKHORSE on January 26, 2016, 07:35:37 PM

Title: pcv valve.
Post by: DARKHORSE on January 26, 2016, 07:35:37 PM

Working over the V-11 on its winter layup doing my undertank checklist. I ordered a new breather hose and pcv valve from mgcycle. On removing the hose I did not find a pcv valve installed from the factory. Made me wonder if a pcv valve is needed on a spine frame. The bike has low miles and I dont get any oil in the airbox so no problems. Did some models have the pcv and some did not? Asking the experts.

Title: Re: pcv valve.
Post by: guzzisteve on January 26, 2016, 08:17:10 PM

Are you taking about the crankcase breathing sys or the gas tank breathing sys?

Tube on top of block has no check valve like earlier motors.

Gas tank should have a tipover valve on vent line.

Title: Re: pcv valve.
Post by: Moto Fugazzi on January 26, 2016, 11:11:18 PM

My 2001 V11 Sport didn't have a crank case check valve. Haven't checked on my 2004 V11S.
Ken

Title: Re: pcv valve.
Post by: Kiwi Dave on January 27, 2016, 12:37:21 PM

What does the parts manual say?

Title: Re: pcv valve.
Post by: DARKHORSE on January 27, 2016, 06:46:42 PM

I checked the parts manual and it doesnt show a crankcase breather valve. I just figured to have all the parts when I ordered the breather hose. The description for the valve was available to fit late model big twins. Thats what got me thinking if some use it and some do not. I am putting the new hose on without the valve and leave well enough alone. Thanks.