690 Enduro Forum

Technical => General Maintenance => Topic started by: Etam on July 11, 2015, 10:13:52 pm

Title: Fueling at low speed
Post by: Etam on July 11, 2015, 10:13:52 pm

Hi all,
Just bought a 2013 690R with 6000k's on it. I have not ridden one before  and it runs very lumpy (that chugga chugga effect is the only way I can describe it) at low sppeeds, hates pulling a higher gear just off the low throttle openning. Runs fine when the revs are up but cannot believe this is how it should be.
I have put a 16 tooth on the front to make the gearing a bit taller which has helped smooth things out a little but you always have to be in the right gear or its not happy.
Sound familiar to anyone?
Any help appreciated.
Regards
Ed

Title: Re: Fueling at low speed
Post by: brian68 on July 12, 2015, 08:34:57 pm

I would think that going yo a 16 front would make it worse as it has to rev even higher to get into the power.  my 14 doesn't make good power until 3500-4000.  try going down a tooth to a 14, then you will pull harder down low .  other things that will cause issues are dirty injector, running lean/rich. so try cleaning the injector, then look at a fuel controler, pcv or vortex. does it have a stock muffler?

Title: Re: Fueling at low speed
Post by: Etam on July 13, 2015, 05:20:49 am

The higher gearing is just for more tarmac riding and I am quite happy with the 16T. I think the problem must be injector related, it just those early throttle opennings, very snatchy, I'll have to find someone with a 690 to compare.thanks for your comments.

Title: Re: Fueling at low speed
Post by: mcrider on July 13, 2015, 11:21:10 am

My '13 runs great all stock with Wings exhaust.  Does not miss a beat.  What map selection are you using?

Title: Re: Fueling at low speed
Post by: Etam on July 13, 2015, 03:57:41 pm

I have not looked at the mapping, I read it was switchable on later models not sure if it is on the 2013.
Did you have to change anything when you put the Wings pipe on?

Title: Re: Fueling at low speed
Post by: mcrider on July 15, 2015, 11:28:38 am

Mapping is changeable on the '13.  Three settings: soft, advanced, standard, poor fuel. see manual.
All I did with the Wings was 15 min. idle-in. I did do de-smog at the same time.

Title: Re: Fueling at low speed
Post by: Etam on July 17, 2015, 02:30:11 am

Hi, found the problem, it was the mapping. The bike was set on 2, what a difference when I set it to 1, in a word rideability.
What setting do you use?

Title: Re: Fueling at low speed
Post by: truck11 on July 17, 2015, 09:26:50 am

I have mine set on crazy monkey setting (aka #2, advanced)   I want to be able to whack the throttle and get the front wheel up and over stuff when off road.  Also gives me better engine breaking.

Title: Re: Fueling at low speed
Post by: mcrider on July 17, 2015, 11:16:04 am

Don't like the monkey.  I set mine on standard, #3.

Title: Re: Fueling at low speed
Post by: rednipj on July 17, 2015, 02:04:53 pm

Sugar sand here in southwest Florida. Mine stays on #2, wild mode. The bike starts to go down and a little blip of the gas usually sets it right back up.

Title: Re: Fueling at low speed
Post by: SLAP75 on July 17, 2015, 07:17:59 pm

mine felt like a slug on the stock setting, very stoked after switching to the #2.  doubt i'll ever switch it back.