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General Category => Maintenance => Topic started by: freezer on June 03, 2014, 01:18:27 PM

Title: pressure sensor rubber pipe
Post by: freezer on June 03, 2014, 01:18:27 PM
Hi Guys i have just rebuilt my 1989 3CV its a californian model and i cannot find where the pressure sensor rubber pipe fits into under the petrol tank any ideas?
Title: Re: pressure sensor rubber pipe
Post by: FJmonkey on June 03, 2014, 07:35:29 PM
Quote from: freezer on June 03, 2014, 01:18:27 PM
Hi Guys i have just rebuilt my 1989 3CV its a californian model and i cannot find where the pressure sensor rubber pipe fits into under the petrol tank any ideas?

A picture might help...
Title: Re: pressure sensor rubber pipe
Post by: andyb on June 04, 2014, 12:33:29 AM
Gonna need a bit more info.

Most of the plumbing on a given motorcycle is below the tank.  What's the other end going to?  Or is this the thing that plugs into manifold #2?  There's an overflow line to the tank someplace, but no pressure there really.
Title: Re: pressure sensor rubber pipe
Post by: freezer on June 04, 2014, 01:35:40 PM
heres a link to the photo the unit is mounted right hand side of the fairing cradle it has three wires on a multi plug it also has a two foot 6 or 7mm rubber pipe running out of it http://fjowners.com/gallery/7/806_04_06_14_12_31_09.jpeg (http://fjowners.com/gallery/7/806_04_06_14_12_31_09.jpeg)
Title: Re: pressure sensor rubber pipe
Post by: racerrad8 on June 04, 2014, 01:45:14 PM
It hooks to one of the intake manifold ports. It does not matter which one either.

Randy - RPM
Title: Re: pressure sensor rubber pipe
Post by: freezer on June 04, 2014, 02:05:11 PM
cheers for that randy i will just have to search for the manifold conecter it came off (or is off with the carbs again) just wondering can i just blank it off?
Title: Re: pressure sensor rubber pipe
Post by: racerrad8 on June 04, 2014, 02:12:22 PM
Quote from: freezer on June 04, 2014, 02:05:11 PM
cheers for that randy i will just have to search for the manifold conecter it came off (or is off with the carbs again) just wondering can i just blank it off?

Each intake manifold has a nipple sticking out of the top where you can hook it up or you can just leave the sensor uncapped and make sure the intake is capped and ride it.

Randy - RPM
Title: Re: pressure sensor rubber pipe
Post by: freezer on June 04, 2014, 02:19:10 PM
right that's it wheres me silicone sealer gun "job done"
Title: Re: pressure sensor rubber pipe
Post by: Pat Conlon on June 04, 2014, 02:31:05 PM
No, buy a proper oem cap for the intake port plug.
The light skinned vacuum caps used on autos will heat crack and leak. There is a reason why Yamaha used heavy rubber caps.
Title: Re: pressure sensor rubber pipe
Post by: racerrad8 on June 04, 2014, 02:34:04 PM
Which are listed on the RPM website. Can't post a link now, but can after lunch if required.

Randy - RPM
Title: Re: pressure sensor rubber pipe
Post by: andyb on June 04, 2014, 02:40:36 PM
http://www.rpmracingca.com/proddetail.asp?prod=VacCap&cat=24 (http://www.rpmracingca.com/proddetail.asp?prod=VacCap&cat=24)

No comment about how they look. 
Title: Re: pressure sensor rubber pipe
Post by: Pat Conlon on June 04, 2014, 02:44:50 PM
Sorry Randy, I should have posted a link... :flag_of_truce:

Thanks Andy

Don't forget to also order the clamps needed for the caps....