160 more miles on the 910R.... only 2 complaints remains - MVAgusta.net
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post #1 of 36 (permalink) Old 09-02-2006, 02:41 PM Thread Starter
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160 more miles on the 910R.... only 2 complaints remain

i finally got the "good" roads around my area
hills, curves, fast and slow sweepers... roads i know well
almost 700 miles on the bike and i regularly saw 8,000 rpm
i love the bike more and more everytime i climb aboard.
i got several looks today.... i'll comment about those in the appropriate forum.

2 complaints remain..... 1 fairly trivial.... i slightly more significant

1. the grips are the SMALLEST in diameter of any bike i've ever ridden. i think that most 125cc bikes have bigger grips. The small grips causes me to tightly close my right hand to control the throttle (see #2), thereby numbing it fairly quickly. I will use my favorite trick..... tennis racket tape.... comes in 100 colors, 20 materials, 10 thicknesses, and is EASILY removed and replaced..... it'll helping with the numbing issue in more than 1 way.

2. the ABRUPTNESS of the throttle is really quite horrible. 2-3 times as bad as any BMW i've ridden (and BMWs are FAMOUS for the on/off nature of the throttle. i'll take about it at the service next week. after i get my exhaust (or buy a full Ti system) and get a PCIII... i hope that this can be DIALED OUT. you have to spend way too much effort carefully modulating the throttle than need be. i hope that this can be fixed soon... i don't like it

that's about it
the bike is amazing
i wish i'd had this thing 10 years ago



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Greg
Clearwater, FL USA

'07 Brutale 910R
'07 BMW K1200GT

live like you mean it...
but take your family and friends along for the "ride"

Last edited by spalding12; 09-02-2006 at 03:45 PM.
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post #2 of 36 (permalink) Old 09-02-2006, 03:40 PM
yea, throttle is SUPER sensitive on the 910 models. i gotta keep two fingers resting on the front brake lever just to steady my throttle input.
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post #3 of 36 (permalink) Old 09-02-2006, 03:46 PM Thread Starter
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Quote:
Originally Posted by Triple Seven
yea, throttle is SUPER sensitive on the 910 models. i gotta keep two fingers resting on the front brake lever just to steady my throttle input.
so you are saying that even with intensive PCIII "therapy" that it canNOT be dialed OUT?



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Greg
Clearwater, FL USA

'07 Brutale 910R
'07 BMW K1200GT

live like you mean it...
but take your family and friends along for the "ride"
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post #4 of 36 (permalink) Old 09-02-2006, 04:10 PM
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so you are saying that even with intensive PCIII "therapy" that it canNOT be dialed OUT?

no im not saying that, im sure it can be massaged, but i dont know for sure to be honest, as I havent installed one. let's hope. others can speak on this fix with experience.
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post #5 of 36 (permalink) Old 09-02-2006, 04:14 PM Thread Starter
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i just pm'd you, robert....
thanks again, my friend
thanks VERY much



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Greg
Clearwater, FL USA

'07 Brutale 910R
'07 BMW K1200GT

live like you mean it...
but take your family and friends along for the "ride"
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post #6 of 36 (permalink) Old 09-02-2006, 06:17 PM
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Greg - I agree with you about the small diameter of the grip. If you increase the diameter of the grip, won't you have to twist your hand much farther to achieve full throttle, though?
Please let us know how it works out for you -- after a 7 hour ride today, my hand is pretty sore, too.
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post #7 of 36 (permalink) Old 09-02-2006, 06:33 PM
 
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Correct me if I am wrong, but this bike still uses standard throttle and idle cables, right? You can just adjust the tension in the cables so that there is some slack before the gas comes on, this should help.
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post #8 of 36 (permalink) Old 09-02-2006, 06:36 PM
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Quote:
Originally Posted by Some Guy
Correct me if I am wrong, but this bike still uses standard throttle and idle cables, right? You can just adjust the tension in the cables so that there is some slack before the gas comes on, this should help.
I actually adjusted out the slack to aid in smoother transitions from on to off and vice versa.
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post #9 of 36 (permalink) Old 09-02-2006, 06:39 PM
 
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Also, this problem should be mechanical in nature, not something that can be repaired or adjusted by tinkering with the fuel injection. Tuning the mixture to burn at its most efficent level should not effect the power delivery, unless you intentionally over enriched the mixute, this would cause a flat spot and cause the bike to bog a bit before it caught up with itself. If adjusting the cables doesnt do it, it may be a good idea to look into a heavier set of springs for the throttle bodies, as this is what really controls how linear the throttle response is going to be.
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post #10 of 36 (permalink) Old 09-02-2006, 07:21 PM
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Quote:
Originally Posted by Some Guy
Also, this problem should be mechanical in nature, not something that can be repaired or adjusted by tinkering with the fuel injection. it may be a good idea to look into a heavier set of springs for the throttle bodies, as this is what really controls how linear the throttle response is going to be.
I was going to wait to reply:

Some Guy: Just wait untill you get the Brute. A common complaint is the heavy throttle pull. Remedy is to take off one of the return springs to smooth the throttle.

The other problem is the EPA (in the states) Many bikes are tested at small throttle openings. These bikes have to pass clean air testing and the bikes are really lean in this area. This contributes to the abrupt on/off throttle response.

My bike had the tendency to actually slow down when just opening the throttle slightly after entering a turn, then coming on with a bang. Dyno testing showed the bike going very lean at these slight throttle positions. The cure was to richen the area at very small throttle positions.

The bike of the year in the states (Yamaha FZ1) is now being criticised for this same abrupt on/off throttle response. Again, lean conditions are causing this.

The light flywheel of the Brutale also contributes to this snappy feeling to some degree, but fueling issues play a big part.

Let me toot my horn a little. Here is Anuccis response after having his Power Commander mapped.

http://mvagusta.net/forum/showthread.php?t=1854

John T
Certified Power Commander Tech.
Authorized Tuning Center/Dealer


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