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Old 05-19-2013, 06:45 AM   #1
rossguzzi OP
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Location: Bottom left hand side of OZ
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06 -08 How I fixed my fueling.

I have a 06 and want to fix the fueling (snatchy Throttle) issue. I have read enough of the TuneEcu thread to hurt my brain !

I thought there was room for a thread where owners that have fixed the issue could tell how it was done and how happy they are with the results.

So I hope this helps others and myself to sort their bike.

Please state what year bike, Country (some countries dont have all the smog junk) and anything else you think may be helpfull.

Cheers.
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Old 05-20-2013, 08:22 AM   #2
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Well, I thought it was a good idea
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Old 05-21-2013, 09:00 AM   #3
kaptinkaos
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Hey man, I'm going through the process of trying to defeat the snatchiness too, lol! It's not really noticeable on the highway or around town, but it's a wrist killer on single track or in tight mud spots.

2013 990 Baja - Canada (smogged up)
FMF pipes
Did a canisterectomy

Broke it in to 1000kms, didn't help.

Put on a G2 throttle cam (400) and it did help, a little. Still not gone though.

I'm going to try the powertripps maps with TuneECU as soon as my cable arrives. Hopefully more success.

Other plans include removal of SAS. Not planning to change air filter.
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Old 05-21-2013, 09:28 AM   #4
DSM8
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It should be noted the EFI systems change between the model years on the 990.

1st gen are the 06-09
2nd Gen are 2010 on

The solution for the first gen might be different from the one for the second gen.

Just my .02
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Old 05-21-2013, 09:39 AM   #5
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FWIW the canisterectomy and SAS removal are fixes for specific problems that mainly effect carbed bikes and were never an performance enhancing mod and don't have anything to do with the FI. There are things you can do to minimize these issues and depending on whether the bike an early FI 07/08 or later 09-13 the results will vary as the bikes are not the same.
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Old 05-21-2013, 10:05 AM   #6
tacosupreme
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I've got a US model 2012 and the powertripp map solved it for me. The bike is all stock except for FMF cans. It also returned very nice mileage to boot, (US 42 mpg).
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Old 05-21-2013, 10:20 AM   #7
z-man99
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'08 990s with Akro's, no canisterectomy, was a tuning mess when I bought it. Snatchy throttle, major hang-up at about 4500, bad gas mileage. I didn't fix that stuff, but this guy did: http://2wheeldynoworks.wordpress.com/about/

Mileage is now 43ish when I take it easy. Jerky throttle is completely cured. Occasionally I still detect a minor hesitation in the mid range but I probably wouldn't even notice it if I didn't think about it. My favorite mod so far.
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Old 05-21-2013, 10:28 AM   #8
Dagwood_55
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A little here, a little there. Not gonna be one fix for all.

Just a combination of a lot of little things, depending on the bike, that will sum total up to a decent fix that you'll be happy with.
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Old 05-21-2013, 12:07 PM   #9
pman13
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I bought a used 07 with 10k miles on the clock. It was snatchy as hell, but the previous owner had the Arko map. Here is what made it sing:
-Stock Map
-Removed Butterflies
-G2 Throttle Tube (I think the 400 cam)

I haven't taken it into slow off-road yet, but everywhere else is happy as a clam.
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Old 05-21-2013, 02:49 PM   #10
Two Moto Kiwis
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Tune ECU will solve 99 % of it coupled with disabled the o2 sensors and the addition of a the 400 cam.

Get the Tune ECU dongle and go for it.
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Old 05-21-2013, 05:28 PM   #11
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Quote:
Originally Posted by Two Moto Kiwis View Post
Tune ECU will solve 99 % of it coupled with disabled the o2 sensors and the addition of a the 400 cam.

Get the Tune ECU dongle and go for it.
don't get that O2 detail... my 08 model runs like crap with O2's off, turn them on and its almost perfect.
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Old 05-21-2013, 05:42 PM   #12
Two Moto Kiwis
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Quote:
Originally Posted by Gustavo.Ramos View Post
don't get that O2 detail... my 08 model runs like crap with O2's off, turn them on and its almost perfect.
Hmmm, thats an interesting one, when we disabled the o2s on my (2010) 990 SMR it made such a nice difference it as night and day.

I then took out the second flies which made it worse so put them back in.

I think DSM8's post is valid here by the sounds of it.

What year is your bike Gustavo.Ramos ?
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Old 05-22-2013, 01:59 AM   #13
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Quote:
Originally Posted by DSM8 View Post
It should be noted the EFI systems change between the model years on the 990.

1st gen are the 06-09
2nd Gen are 2010 on

The solution for the first gen might be different from the one for the second gen.

Just my .02
1st gen is 06-08 in the US.

Quote:
Originally Posted by Gustavo.Ramos View Post
don't get that O2 detail... my 08 model runs like crap with O2's off, turn them on and its almost perfect.
I turned my o2 sensors off and it runs great. I did work on the mapping quite a bit. Unless you have access to a dyno with a professional, tuning the map with the 02 sensors on is impossible at certain rpms.

So many variables....
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Old 05-22-2013, 04:41 AM   #14
ElRod
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Quote:
Originally Posted by z-man99 View Post
'08 990s with akro's, no canisterectomy, was a tuning mess when i bought it. Snatchy throttle, major hang-up at about 4500, bad gas mileage. I didn't fix that stuff, but this guy did: http://2wheeldynoworks.wordpress.com/about/

mileage is now 43ish when i take it easy. Jerky throttle is completely cured. Occasionally i still detect a minor hesitation in the mid range but i probably wouldn't even notice it if i didn't think about it. My favorite mod so far.
+1
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Old 05-22-2013, 05:14 AM   #15
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Snatchy Throttle

I have an 07 with Arkos brought second hand with inserts out. Was quite snatchy, the first thing I found was putting the Arkos inserts back in and not doing 15 minute idle thing helped.

The big thing though is that I just adjusted my valves, the inlets were tight and one exhaust. I adjusted the inlets to be a little bit loose somewhere between 0.15 and 0.175. Exhausts are in spec.

This made the engine smoother overall and really helped the snatchy throttle it Israel almost not noticeable. It really makes a big difference.
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