02 sensor install in Sea-Doo Exhaust Manifold

[Green Hulk]

Your 02 sensor can be installed directly into the exhaust manifold by drilling and tapping in the location shown in the pictures.

The tap size needed is M18 x 1.5
Drill size is 41/64
Riva makes a kit for this

http://www.4-tecperformance.com/index.php?main_page=product_info&cPath=18_3&products_id=2296

[whittlebeast]

I am just about to do this on the 2012 RXPX. Do you just take the V clamp off the end of the exhaust manifold and the 12 or so blots into the head? Does the waterbox and other stuff connected to it need to be moved back. I cut the black foam away to get hand clearance.

Andy

[dlf2001]

I just did this to mine Andy. I have a RXT so the foam was not a problem. I had to slide the waterbox back some but you can leave all the stuff connected to it. There are 2 hose connections on the bottom of the manifold. This stuff is not as easy as it was years ago when I was younger and smaller.

[whittlebeast]

Here is the hot knife that I used to get the foam out of the way. It worked perfect.

http://www.wind-lock.com/DSN/wwwwindlockcom/Content/PDF/ICF/QCHotKnife.pdf

Andy

[lazsrxp]

Any specific location on where to wireup the gauge?

[Green Hulk]

Any specific location on where to wireup the gauge?

Check out the pictures and you will see a boss that is cast into the exhaust manifold. This is where you drill and tap it.

If you use the V-Tech logger there is no wiring necessary. It simply plugs directly into the BUDS communications port and the other plug goes directly to your 02 sensor. No custom wiring necessary at all. Have a look at the logger here in the store http://www.4-tecperformance.com/inde...oducts_id=2174

If you are using another brand AFR gauge refer to the instructions that came with it.

[pandan9]

Does it matter what year ski the manifold is from, can I do it with a 2004/2005 manifold from an RXP?

[whittlebeast]

Order for removing the 2012 exhaust manifold

Purchase a good 1/4 air ratchet, you will need it.

Remove the Styrofoam to the outside of the exhaust with hot knife.

Remove the water lines from the top of the exhaust manifold

Remove the small water line off the top of the air box

Remove the V-clamp between the exhaust manifold and adapter coupler

Remove the back hose clamp from the coupler rubber and the waterbox

Remove the waterbox rubber hold down

Slide the waterbox back till the exhaust manifold clears the adapter

Remove the 12 or so bolts holding the exhaust manifold in

The exhaust will drop to the bottom of the hull

Flip the exhaust over to get to the two underside water lines

Remove the adapter. It goes into the waterbox a long way

Remove the exhaust manifold thru the big hole you just created.

Hope this helps

Andy

[troyheb]

Does it matter what year ski the manifold is from, can I do it with a 2004/2005 manifold from an RXP?

It can be done, but most people dont because there is a very good chance you will drill into the water jacket. If you want to put the sensor in the manifold it is best to use a newer 08 and up manifold.

[whittlebeast]

We got the 2012 exhaust manifold tapped today for the o2 sensor. It really is about .800" farther out of the air stream than it is designed to be. We will see how it works. It would very difficult to get it buried to the correct depth and still get socket head clearance. I have no idea how close the water jacket is to where you would have to get.

Andy

[dlf2001]

Mine was out of the exhaust flow also, the tip did not protrude from the hole in the manifold. I guess we will see how they read afr's.

[whittlebeast]

What is the trick to get the water box strap back on. Do I need to remove the panel that the back of the seal sits on? This is a 2012 bike.

[dalef10ods]

Mine was out of the exhaust flow also, the tip did not protrude from the hole in the manifold. I guess we will see how they read afr's.

Any update on whether it reads AFR correctly?

im just about to do this on a 2012 PX, but am wondering if the R&D o2 adaptor is a better way?

[Sayers]

Many people running this setup for years. With the sensor being so close to the head and the back pressure in the system should not be an issue.
Would love to see if anyone has seen any difference in readings by changing sensor location/ setup?

[jp1300r]

Mine was out of the exhaust flow also, the tip did not protrude from the hole in the manifold. I guess we will see how they read afr's.

Any update on whether it reads AFR correctly?

im just about to do this on a 2012 PX, but am wondering if the R&D o2 adaptor is a better way?

Don't bother with the R&D O2 adapter.

It will read just fine in the exhaust manifold.