Hey guys, could use some advice. I have a 2011 ZX-10R and bought Yoshi R77D 3/4 system and PCV from Mike at Riders Discount (who was great to deal with btw) but the link pipe doesn't have provision for the O2 sensor. The Dynojet website doesn't list an O2 optimizer or O2 eliminator kit for the 2011 model. Can anyone suggest any options for me? Many thanks in advance.
Cheers, Dave.
Yoshi R77D 3/4 system - nowhere for the O2 sensor to go???
- Jonno
- Mobile Chicane
- Posts: 5613
- Joined: Thu Dec 30, 2004 4:10 pm
- Bike: Other Kawi
- State: Queensland
- Location: Brisbane
- Contact:
Re: Yoshi R77D 3/4 system - nowhere for the O2 sensor to go?
You will have to get a threaded socket (pref' .same material as linkpipe) welded in for the OEM O2 sensor until Power Commander extract there R&D digit and fix the autotune module which I wasnt suppose to have yet.
I can take a pic for you to show the position if you like, but wont be until Monday when I visit the workshop.
The stock O2 sensor works fine with just the PCV as mine does.

I can take a pic for you to show the position if you like, but wont be until Monday when I visit the workshop.
The stock O2 sensor works fine with just the PCV as mine does.
- Mattjin
- KSRC Member
- Posts: 179
- Joined: Thu Apr 15, 2010 6:03 pm
- Bike: Z1000
- State: New South Wales
- Location: Western Sydney
Re: Yoshi R77D 3/4 system - nowhere for the O2 sensor to go?
Any exhaust shop should have the bungs in stock but they are usually just steel. Instead you might want to track down a bolt shop and get yourself a stainless nut to do the job for a couple of bucks. Most O2's are 18x1.5mm thread but you may need to check it. Take the O2 with you.
- pittster
- KSRC Member
- Posts: 254
- Joined: Wed Mar 02, 2011 12:35 pm
- Bike: ZX10R
- State: New South Wales
- Location: Newcastle
Re: Yoshi R77D 3/4 system - nowhere for the O2 sensor to go?
I wonder if a Gen 3 O2 elimnator would work or zx6 ones a few carry over parts to the gen 4 worth a shot there only 20 bucks or something. I also heard the newer Yoshi 3/4 have the bung now.
Kawasaki ZX-10R 2008 - R77 Yoshi full system, PC3 Custom Mapped, Benneli bar end mirrors, Puig Double Bubble, Radiator protector, CircuitOne Mirror blanks, Pazzo levers, Shift-I, etc
Re: Yoshi R77D 3/4 system - nowhere for the O2 sensor to go?
That would be great Jonno if you could take a pic for me. Did I understand you correctly that the PCV works fine with the stock O2 sensor and no O2 optimizer? If so are you running a custom tune or one from Power Commander?Jonno wrote:You will have to get a threaded socket (pref' .same material as linkpipe) welded in for the OEM O2 sensor until Power Commander extract there R&D digit and fix the autotune module which I wasnt suppose to have yet.![]()
I can take a pic for you to show the position if you like, but wont be until Monday when I visit the workshop.
The stock O2 sensor works fine with just the PCV as mine does.
Cheers, Dave
Re: Yoshi R77D 3/4 system - nowhere for the O2 sensor to go?
Jonno, can you also send me the photo of the O2 senor?