Poor MPG, oily smell from exhaust and compression test. - Page 2 - Triumph Forum: Triumph Rat Motorcycle Forums
Tiger's 885i & 955i - Mods & Workshop Workshop and technical talk for the 885i & 955i Tigers

 3Likes
Reply
 
LinkBack Thread Tools Display Modes
post #11 of 22 (permalink) Old 04-13-2017, 04:24 PM Thread Starter
World SuperBike
Main Motorcycle: 2006 Tiger '955
Senior Member
 
Join Date: Feb 2006
Location: Hartlepool. U.K.
Posts: 1,949
Anyone think it's worth putting a new O2 sensor on it, see if that brings the MPG up a bit ??

Safe riding.
Regards,
Graeme.
Tiger-G is online now  
Sponsored Links
Advertisement
 
post #12 of 22 (permalink) Old 04-13-2017, 04:26 PM
Supersport 600
Senior Member
 
tiny tiger's Avatar
 
Join Date: Dec 2015
Posts: 192
Garage
Quote:
Originally Posted by Tiger-G View Post
Anyone think it's worth putting a new O2 sensor on it, see if that brings the MPG up a bit ??
I would only if I could see what the current o2 is reading. I'm not sure if tune ecu can, but I think it does read the o2. Maybe someone will be able to say. It's been a few since I've had to use tune ecu.

Sent from my SM-G930V using Tapatalk

electrons were excited to send you this!
tiny tiger is offline  
post #13 of 22 (permalink) Old 04-21-2017, 11:07 AM Thread Starter
World SuperBike
Main Motorcycle: 2006 Tiger '955
Senior Member
 
Join Date: Feb 2006
Location: Hartlepool. U.K.
Posts: 1,949
Quote:
Originally Posted by tiny tiger View Post
I would only if I could see what the current o2 is reading. I'm not sure if tune ecu can, but I think it does read the o2. Maybe someone will be able to say. It's been a few since I've had to use tune ecu.

Sent from my SM-G930V using Tapatalk
Tune ECU does indeed read the O2 sensor, but I'm not sure what the figures shown actually represent. They seem to fluctuate with the bike at idle. Here's a few examples taken within seconds of each other:

0.460v 0.4
0.460v 5.9
0.260v 6.7
0.000v 9.0
0.210v 9.0
0.005v 7.5

Any ideas ??

And...........I put the old Triumph OEM map (10172) back on the bike today and let it idle. The exhaust fumes smell like they should do ?? Very strange ??

Safe riding.
Regards,
Graeme.
Tiger-G is online now  
 
post #14 of 22 (permalink) Old 04-21-2017, 11:48 AM
Supersport 600
Senior Member
 
tiny tiger's Avatar
 
Join Date: Dec 2015
Posts: 192
Garage
Quote:
Originally Posted by Tiger-G View Post
Tune ECU does indeed read the O2 sensor, but I'm not sure what the figures shown actually represent. They seem to fluctuate with the bike at idle. Here's a few examples taken within seconds of each other:

0.460v 0.4
0.460v 5.9
0.260v 6.7
0.000v 9.0
0.210v 9.0
0.005v 7.5

Any ideas ??

And...........I put the old Triumph OEM map (10172) back on the bike today and let it idle. The exhaust fumes smell like they should do ?? Very strange ??
I think the service manual has values for the correct readings. When I get home I can look them up.

Sent from my SM-G930V using Tapatalk

electrons were excited to send you this!
tiny tiger is offline  
post #15 of 22 (permalink) Old 04-21-2017, 12:25 PM Thread Starter
World SuperBike
Main Motorcycle: 2006 Tiger '955
Senior Member
 
Join Date: Feb 2006
Location: Hartlepool. U.K.
Posts: 1,949
Thanks mate
tiny tiger likes this.

Safe riding.
Regards,
Graeme.
Tiger-G is online now  
post #16 of 22 (permalink) Old 04-21-2017, 08:38 PM
SuperSport
Main Motorcycle: 02 Sprint RS
Senior Member
 
Steve Ford's Avatar
 
Join Date: Aug 2014
Location: Pennsylvania
Posts: 1,102
Other Motorcycle: 06 Tiger
Extra Motorcycle: a few others
They're supposed to bounce around as it constantly goes above and below the ideal air/fuel ratio but 0 volts?
http://www.ngkntk.co.uk/index.php/te...ambda-sensors/
Steve Ford is offline  
post #17 of 22 (permalink) Old 04-22-2017, 05:07 AM Thread Starter
World SuperBike
Main Motorcycle: 2006 Tiger '955
Senior Member
 
Join Date: Feb 2006
Location: Hartlepool. U.K.
Posts: 1,949
Thanks for that Steve

Hmmm, not sure about the 0 volts thing myself ?? Wonder if it's the ECU doing one of its mysterious adaptions ??

Safe riding.
Regards,
Graeme.
Tiger-G is online now  
post #18 of 22 (permalink) Old 04-22-2017, 05:46 AM
SuperSport
Main Motorcycle: 02 Sprint RS
Senior Member
 
Steve Ford's Avatar
 
Join Date: Aug 2014
Location: Pennsylvania
Posts: 1,102
Other Motorcycle: 06 Tiger
Extra Motorcycle: a few others
I don't know but my 06 Tiger showed up with an air filter full of red sandy dirt from Florida and was burning through Mobil 1 at an alarming rate. The gas mileage was also mid 30s but a new filter cured that.
I switched over to semi synthetic but haven't put enough miles on to know if that will cure the oil consumption. I have to start riding that bike more and will report back.

From what you've said it sounds like you want new piston rings in the old girl and valve guide seals.
Steve Ford is offline  
post #19 of 22 (permalink) Old 04-22-2017, 06:15 AM
Formula Extreme
Main Motorcycle: Tiger Sport
Senior Member
 
Paul49's Avatar
 
Join Date: Oct 2009
Location: Peak district
Posts: 550
Other Motorcycle: Tiger 800 XRx
Extra Motorcycle: Ariel Huntmaster
Quote:
Originally Posted by Tiger-G View Post
Hi All,
I've been getting poor MPG lately from my 2006 955i and I've had a rich fuel / oil smell from the exhaust for years. The bike uses oil as well.

I got round to doing a compression test today, on what is a cheap and cheerful tester that I don't expect to be 100% accurate. The results were quite similar for both a cold and hot engine test:

For pistons 1 - 2- 3.
Cold engine: 105 - 110 - 100 (pretty poor IMO)
Cold engine with engine oil added to cylinders: 140 - 140 - 140.
Hot engine: 110 - 110 - 110.
Hot engine with engine oil added to cylinders: 140 - 140 - 140.
Looking at a good few videos online for Triumph engine compression tests, they are all above 150psi on a cold engine, so I guess my piston rings are worn. The increase in PSI with the addition of engine oil to the cylinders pretty much backs that up.
This all sounds like a very rich fuel mixture washing the oil off the bores, wearing out both the bores & pistons/rings.
When were the injectors last set up/balanced?

Those 955i's were brilliant on fuel, I had a ST955i, avg 56mpg ridden hard two up with full luggage. Ok we have man sized gallons & the ST's are a tad more aerodynamic but you should still get around 45.
Paul49 is offline  
post #20 of 22 (permalink) Old 04-26-2017, 03:57 PM Thread Starter
World SuperBike
Main Motorcycle: 2006 Tiger '955
Senior Member
 
Join Date: Feb 2006
Location: Hartlepool. U.K.
Posts: 1,949
Had the injectors professionally tested a few years ago, and the guy said they were perfect. Set the throttle bodies last year too.

I've just reverted back to the original map from the TOR one, as I wanted to see if that made a difference. As soon as I started the bike with the new map the exhaust fumes smelled as they should. The more miles I put on it, the more start-ups, the worse the exhaust fumes are ?? Wonder if I've got a IACV problem ??

Will report back on MPG after a few fill ups.

Safe riding.
Regards,
Graeme.
Tiger-G is online now  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

Register Now



In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Compression test Kiwi al Classic, Vintage & Veteran 12 05-17-2015 02:10 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome