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Snatch Throttle - Again


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#21 Stratman

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Posted 02 July 2009 - 11:26 am

Glad its all sorted now!
Two bikes, still only four cylinders!

#22 Nanook

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Posted 02 July 2009 - 03:18 pm

QUOTE(Nanook @ Tue 26th May 2009, 05:26 PM) <{POST_SNAPBACK}>
Lads,

I'm not really happy with the snatchy throttle at town speeds on my 08 900. I've had the airbox mod done but that didn't seem to make much difference. I'm now wondering if a Power Commander is the way forward. Any views? unsure.gif


On top of this my idle speed wouldn't drop below 2400rpm as I mentioned in another thread. My dealer has done a warranty job on the bike and found that the fast idle plunger was faulty. They ordered one from Yamaha and were told that it wasn't supplied as a separate part and that the whole throttle body assembly would need to be replace.......about 1000 fecking UK pounds lads. Glad it was covered under warranty. Anyway, it cured the idle rpm issue and, into the bargain, it has virtually got rid of the snatchy throttle. So I'm a happy bunny again. And, in my new job here http://www.cairngormmountain.co.uk/, I get to ride up and down the ski road twice a day excl.gif excl.gif Happy days are here again biggrin.gif biggrin.gif
Beware the whitevanman!

#23 AzzA

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Posted 02 July 2009 - 06:47 pm

Aussie9 and Nanook,

glad you're both happy with the fixes.

Aussie9,

it'd be great if you could give us a line or two about the cruise control when you're back from the big trip... I've been looking sideways at them for a while, I've got Melbourne to Perth planned for next year. Return!! So a good working cruise control would be very welcome, even if it is the best chunk of a thousand dollars.

Cheers,
AzzA

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#24 DevoTDM

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Posted 03 July 2009 - 06:52 am

Aussie 9,

Is it the mccruise cruise control you fitted? Did you fit it yourself? Any issues fitting it?

I'm interested as I live in Broken Hill and it's a long, straight ride to get anywhere. My wrist was the worse-for-wear after the ride from Horsham to Broken Hill. I've been using a throttle rest but I find it gets in the way on occassion.

#25 aussie9

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Posted 03 July 2009 - 11:19 am

Yes the cruise is an MCcruise. These systems are designed for specific models and as such are plug and play.
Brothers Frank and Tony Guymer (developers and manufacturers of MCcruise) both are long time riders.
Tony rides a TDM900 and all the development for this kit was done on his bike.
Truely plug and play, with a little bit of adjustment on the throttle cables as you fit the cable interface unit. 4 and a half hours from lifting the tank to going up the road to calibrate and road test.
I was just amazed at how easy it all went together and how well its works.
I have been able to adjust the sensitivity accurately enough so its works from 50kph upwards. No surging!
I think that in the fitting I spent more time reading the instructions than actually fitting components and tying in the wiring loom.
I have a Healtech speedo healer fitted (once again a great product that is just plug and play) and this made no difference to connecting in the speed sensor wire.
The only down side is the slight loss of storage space under the seat where the computer now resides.
I have previously used the Univsta cruise and throttle aid/rocker/palm rest or whatever you want to call 'em. Never again. After just 1 week I will fit one of these to every bike I ever own. Mind you, I think I'll have this TDM forever! rotflmmfao.gif

Check out their website http://www.motorcycl...se-control.com/

The demand for their product is pretty high at the moment so even us Aussies have to wait 7-10 days. The kits are built to order.
If you have ever wired up your own driving lights, or fitted heated grips or done your own shim adjustments then I believe you are capable of fitting one of these kits. The instructions are very comprehensive.
Nothing is left to chance.

The quality of the kit and the effectiveness of the end product justifies the price. 10/10 good.gif

Several riders have already said to me they would rather buy a cheap car type unit instead. One local FJR1300 owner did just that and regretted it. No matter what he did it was not able to cruise smoothly or safely. Four weeks later he splashed out on the MCcruise cursing the $500 (including labour) he wasted on the cheaper unit. nuff said.

Frank and Tony know their stuff. Any problems, phone them up. They value your business and will always talk to you.

Ian
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#26 alloypiston

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Posted 03 July 2009 - 06:14 pm

Aussie9,
Did you keep the TPS at 19-100 or did you revert back to 15/16-97,
Thanks,
AW


QUOTE(aussie9 @ Thu 2nd Jul 2009, 11:15 AM) <{POST_SNAPBACK}>
All my tuning issues have finally been resolved.
As reported earlier the TPS was replaced as it was giving unreliable readings. Everything was good for 10 days then even more problems arose.
Cold starts had one cylinder dropping out. Intermittently until it thoroughly warmed up, about 15 minutes. After 5 days of this bull***t behaviour it lost one cylinder totally. FARRRRROUT!!!!! mad.gif
The weekend came around and the new cruise control had arrived too. OK, replace the spark plugs and fit the cruise. Should be easy.
Removed the side panels and started the bike.

BINGO!!!
No1 high tension lead was arching (10mm out from coil) to the frame causing the miss-fire. This is a bloody new bike!
Well this one will be replaced under warranty for sure. I removed the coil and wound ample quantities of electrical insulation around the offending lead and refitted. No more miss-fire and the bike sounded smoother than it had ever before. Hooray, the problem was finally solved. This faulty coil may have been the cause of the problems right from the start.

The fitting of the electronic cruise control went as planned. Sorry guys, no pics, the camera was being recharged. The whole system is plug and play. I was road testing 4 hours later and the bike is running beautifully and the cruise is fantastic. They may be pricey, but to me it's worth every penny. tup.gif

The CO's are now set at 0 and +6. Everything now feels as it should. Easy starts, smooth and torquey from 1800rpm and first weekend out with the cruise control returned 23km/l traveling 2up, only using 100kmh though.
My loss of confidence has been restored and just in the nick of time. Mid July is 4500km in 5days to QLD's Sunshine coast and back.

I am really looking forward to this trip now! yeahbaby.gif


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#27 aussie9

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Posted 04 July 2009 - 04:16 am

Went back to 15-97 with the unfounded belief that it may help the bottom of the rev range..now its working I can't be bothered to try 19-100 just for the sake of it.
The faulty coil was probably the main cause all along, but the TPS was giving dud readings too. I just started looking in the wrong place.
Hind sight is wonderful.
Ian
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#28 Guest_Catteeclan_*

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Posted 04 July 2009 - 07:32 am

It does sound more and more like it's not a fuel/timing map issue but more like dodgy sparks and to higher mixture.

Must get some of that tape stuff.

#29 Guest_graeme_*

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Posted 04 July 2009 - 11:54 am

Hi all, have been following this thread with some interest, i am owner of new 09 as of 19th june. The airbox mod i did the day after riding home and it makes a huge difference. Although i do very little low speed riding i can see (feel) the 2500 hunt thing but its not too bad on mine. This is my first injected bike and i know i have to get used to a new feel but i certainly reckon the low speed hunt is just a matter of adjusting the injection via the onboard controls and in most cases i would think its by richening it a little. Modern machinery is set for very strict european standards so i can see that they would be running very lean. That all remains to be seen but i can see it all in whats been written in this thread including the (distractions) caused by other errant issues (who would think a new bike could have a faulty coil lead in this day and age?). My actual contribution is to point out what i think could also play a part in this multi faceted issue and that i am going to try and alter on my machine but which i am interested to raise with you all. Its the actual twist grip, by this i mean the light action it has and the looseness of it. I ride on roads that are a little bumpy (or have liitte bumps) in many places and the bump jar seems to translate to movement in the throttle that causes a little jerkiness. Is it just me that is having this happen? In any event i intend to maybe put a bit of grease in the housing to damp it a little and see how it feels. I agree that a power commander or similar is most likely a waste of money given the onboard adjustment which i would see as an adjustment to the target mixture across the whole injection map. I do think its probably set as low as possible to meet emission standards but that the actual map is well set by the people who designed the engine.
Thats all folks--
Graeme

QUOTE(Catteeclan @ Sat 4th Jul 2009, 05:32 PM) <{POST_SNAPBACK}>
It does sound more and more like it's not a fuel/timing map issue but more like dodgy sparks and to higher mixture.

Must get some of that tape stuff.



#30 Guest_Catteeclan_*

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Posted 06 July 2009 - 07:32 am

The power commander does work well as you can adjust the mixture at any rev. You'll find a few threads on here with people having a prof job done with excellent results. Mine is much better with one.
Trevini is one who has found that "leaner is better" via the dash adjustment. He's also fitted a new TPS so I wounder if this is still the case. Trev/?

Still gonna get some tape as it's a very common fault.

#31 Guest_trevini_*

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Posted 06 July 2009 - 04:09 pm

Mines running like a dream at the moment. Had a run round the Kent/Sussex coast on sat. Never missed a beat and even with some spirited riding on the way home and a very quick blast yesterday afternoon worked out at 65.9 mpg. bloody amazing!

I did have a pc on mine, along with the airbox mod and Remus cans, but I removed them and undid the airboxmod after some running issues (to rule them out as the cause). Finally tracked the problem down to faulty tps and had emissions set up using co meter. It's certainly not short on power, lifts the front easily off the throttle in first and fairly often on the upchange into 2nd, so I guess it's not too far out. No horrible hunting around 2800 rpm like it used to have.

On the subject of ht leads, I have a short length of rubber hose (fuel pipe) over the top of the lead where it runs close to the frame and have never had any arcing/tracking issues in the 30k miles I've put on it.

#32 Orsoncarts

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Posted 06 July 2009 - 08:50 pm

Hi Guy's, My first proper post......Had my new 900 about amonth now, done the first 600, fitted a pair of Beowulfs, so loud I had to leave the baffles in.!!!!!!and it still scares dogs!!!
Had the first service done at Poole Yamaha and the airbox mod , thing is the bike is better but still snatchy at 2500-3000, sort of ruins an ace bike really, now I'm no mechanic at all.........so how do I take the the slack out of the throttle, cos I'm hoping this may help .........Don't want to appear thick, but as I said I am no mechanic......And is it a case of trial and error with setting the CO2 thingies or is there a sort of general setup you guys use when your running cans.........Any help would be great..
Brilliant Site by the way... good.gif


#33 Toraneko

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Posted 07 July 2009 - 12:12 pm

QUOTE(aussie9 @ Thu 2nd Jul 2009, 08:15 PM) <{POST_SNAPBACK}>
BINGO!!!
No1 high tension lead was arching (10mm out from coil) to the frame causing the miss-fire. This is a bloody new bike!
Well this one will be replaced under warranty for sure. I removed the coil and wound ample quantities of electrical insulation around the offending lead and refitted. No more miss-fire and the bike sounded smoother than it had ever before. Hooray, the problem was finally solved. This faulty coil may have been the cause of the problems right from the start.


I've noticed recently that the leads from the coils on 9'ers are positioned in such a way that they get crushed between the plastic side covers & the metal frame.
See piccies below. Not sure if MK1 & 2's are similar or not ?
Seems a pretty ridiculous design flaw for Yamaha to make so me thinks it may be a way of helping boost service & parts revenue ? rolleyes.gif
Here's a little preventative mod to HOPEFULLY stop ignition coil leads arcing, shorting out & causing further problems.


All you need to do is get some high density self adhesive foam rubber. ( I got mine from "The Purple Pig" where all nice rubber goods are sold laugh.gif )
Stick it to the frame on both sides like below.






Did I mention you should mark either side of each coil lead on both side covers before you take them off ?

Then carefully file out ( scallop ) between the marks to give a couple of mm more space for the leads.



Now they're spaced away from the frame & shouldn't get pinched anymore.

Hope that's useful gents.











cheers, Shane from Tassie

Airbox Mod ( JBX ), Krauser K-wing mount & Top Box, TDM Shield a.k.a TigerScreen Mk 2, HyperPro progressive rate fork springs, BeoWulf - Warrior exhausts,
Stebel Compact Nautilus Air-Horn with Eastern Beaver relay kit, Eastern Beaver PC-8 switched fusebox, Powerlet BMW style power socket
plus controller & heated gloves for the missus. Oxford v7 Heated Grips, V-Strom 650 HandGuards, Fenda extenda.

#34 aussie9

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Posted 07 July 2009 - 01:14 pm

Thanks Shane, great tip.
My HT leads have not been squeezed and have no marks showing, but I'll be adding extra insulation anyway. good.gif
Ian
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#35 SteveAussieTDM900

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Posted 08 July 2009 - 04:05 am

What is a TPS????

- other than a report that needs a new cover sheet, I mean.

Throttle Position Sensor?

Edited by SteveAussieTDM900, 08 July 2009 - 04:13 am.

Witty comment, or possibly a quote.

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#36 Guest_Catteeclan_*

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Posted 08 July 2009 - 07:09 am

QUOTE(SteveAussieTDM900 @ Wed 8th Jul 2009, 05:05 AM) <{POST_SNAPBACK}>
What is a TPS????

- other than a report that needs a new cover sheet, I mean.

Throttle Position Sensor?


That's it. You can check it out on the bike via "diag". Mine was set at 16 and climbed smoothly as I increased the throttle to 97.

#37 AzzA

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Posted 09 July 2009 - 08:33 am

QUOTE(TDMtoraneko @ Tue 7th Jul 2009, 10:12 PM) <{POST_SNAPBACK}>
...
Did I mention you should mark either side of each coil lead on both side covers before you take them off ?

Then carefully file out ( scallop ) between the marks to give a couple of mm more space for the leads.



Now they're spaced away from the frame & shouldn't get pinched anymore.

Hope that's useful gents.



Shane,

I haven't had the need to take my side covers off yet but, would placing extra spacers (of about 5mm) on the black rubber buttons (in the picture) give enough stand-off without the need for surgery? I'm guessing there'd be enough flex in the plastic panels to cope.

Cheers,
AzzA

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#38 Toraneko

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Posted 09 July 2009 - 11:07 am

QUOTE(AzzA @ Thu 9th Jul 2009, 06:33 PM) <{POST_SNAPBACK}>
Shane,

I haven't had the need to take my side covers off yet but, would placing extra spacers (of about 5mm) on the black rubber buttons (in the picture) give enough stand-off without the need for surgery? I'm guessing there'd be enough flex in the plastic panels to cope.

Cheers,
AzzA


Not a bad thought. I'd reckon a 3mm spacer would be enough. I'd still put the rubber ( or similar ) behind the coil leads as well though. smile.gif



cheers, Shane from Tassie

Airbox Mod ( JBX ), Krauser K-wing mount & Top Box, TDM Shield a.k.a TigerScreen Mk 2, HyperPro progressive rate fork springs, BeoWulf - Warrior exhausts,
Stebel Compact Nautilus Air-Horn with Eastern Beaver relay kit, Eastern Beaver PC-8 switched fusebox, Powerlet BMW style power socket
plus controller & heated gloves for the missus. Oxford v7 Heated Grips, V-Strom 650 HandGuards, Fenda extenda.


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