Early fueling issues etc - 2018 KTM 790 Duke Forum
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post #1 of 128 (permalink) Old 08-20-2018, 07:44 AM Thread Starter
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Early fueling issues etc

Finding the throttle incredibly snatchy

Mirrors move out of position when travelling above 60mph

Travelling at any speed below 35mph is horrible as the bike surges up and down the rev range

Anyone else finding their bike the same?
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post #2 of 128 (permalink) Old 08-20-2018, 06:36 PM
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Fitting a Boosterplug https://www.boosterplug.com/shop/frontpage.html

fixed most of my surging at low revs problems as well as smoothing out the throttle response.

Try tightening the screws at the ball joint on the mirrors.

Have fun
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post #3 of 128 (permalink) Old 08-20-2018, 06:37 PM
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Hey Depster, sorry to hear about the issues.

Are you running stock mirrors on the stalks?

I haven’t had the issues you mention, other than it’s being slightly snatchy down low, but only really in sport/track mode.

Some have had success with a booster plug and other have said it seems to be more prevalent before the first service.

https://www.boosterplug.com/shop/boo...-790-747p.html

Apparently there’s firmware 0.20 on the way which is supposed to help too.

Observation is the greatest source of wisdom.
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post #4 of 128 (permalink) Old 08-21-2018, 03:13 PM
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yep standard mirrors are not very good optional bar ends are great but expensive
snatching
what riding mode are you using?
stick to street, booster plug helps a bit
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post #5 of 128 (permalink) Old 08-22-2018, 05:20 AM Thread Starter
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Quote:
Originally Posted by owl View Post
Hey Depster, sorry to hear about the issues.

Are you running stock mirrors on the stalks?

I havenít had the issues you mention, other than itís being slightly snatchy down low, but only really in sport/track mode.

Some have had success with a booster plug and other have said it seems to be more prevalent before the first service.

https://www.boosterplug.com/shop/boo...-790-747p.html

Apparently thereís firmware 0.20 on the way which is supposed to help too.
Is the booster plug available in the UK?

Stock mirrors seem really loose at the mirror head and move far too easily.

Have only used Street mode so far.
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post #6 of 128 (permalink) Old 08-22-2018, 07:44 AM
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My left mirror turns inwards with the wind when I hit 200kmh, although I am not actually worrying much about them at 200 clicks. 🙃
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post #7 of 128 (permalink) Old 08-22-2018, 09:12 AM Thread Starter
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How easy are the boosterplugs to fit?
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post #8 of 128 (permalink) Old 08-22-2018, 09:35 AM
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I haven't needed a booster plug, but believe @anotheronetoday is UK based and has purchased and fitted one so should hopefully be able to assist on where to buy.

From what I've read about them it's a fairly quick painless install.

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post #9 of 128 (permalink) Old 08-22-2018, 05:55 PM
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Im pretty sure the Boosterplug is a Dutch product.

You can buy one here https://www.boosterplug.com/shop/boo...-790-747p.html

fitting the Boosterplug takes 5 minutes. Undo the two screws holding the front seat on and there is the air sensor, unplug the air sensor and plug in the Boosterplug, dump the boosterplug sensor in the space under the back seat, replace the front seat, job done.

Takes about 5 mins, you wont even have time to crack a beer!

I actually just bought another to fit to the 390 Duke i just got for the missus
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post #10 of 128 (permalink) Old 08-23-2018, 03:35 AM
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hi
to fit neatly takes a bit longer than this I would allow 30-45mins
Remove front seat and to mount booster plug and probe remove petrol tank plastic outer cover
very easy to access the required connector located on top of airbox at the back of petrol tank
I wanted to mount temp probe at headlight location to avoid engine heat
I mounted booster plug onto inner petrol tank below the welded seam fitted very well and completely hidden once the petrol tank plastic outer cover is replaced
I still found the temperature probe lead to be a little short and mounted it to the back edge of the LHS for leg

hope this helps

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