Smooth Throttle Tips - Wrist Twisters
 
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post #1 of 22 Old 02-02-2011, 07:26 PM Thread Starter
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Smooth Throttle Tips

I used to ride a Yamaha Virago 750cc for 6 years and recently bought a 2007 Honda 919. My handle grips are much smaller and I don't seem to use the throttle as smoothly as I did on my Virago. The Honda bars have risers and I'm 6ft tall. Even though I don't grip the handle too hard, I still have trouble having a smooth ride.

Besides practicing, are there any other recommendations?

This is only my second motorcycle.

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post #2 of 22 Old 02-02-2011, 07:39 PM
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I rode a 84 Magna before this, and after 2 years I still have trouble. The TPS is touchy on tip in on this bike, I've found. One remedy is to adjust the cable as tight as you can without throttling the engine when you move the bars. I tightened mine, and it seems to help. Good luck! DB

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post #3 of 22 Old 02-02-2011, 07:49 PM
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Quote:
Originally Posted by Reds View Post
I used to ride a Yamaha Virago 750cc for 6 years and recently bought a 2007 Honda 919. My handle grips are much smaller and I don't seem to use the throttle as smoothly as I did on my Virago. The Honda bars have risers and I'm 6ft tall. Even though I don't grip the handle too hard, I still have trouble having a smooth ride.

Besides practicing, are there any other recommendations?

This is only my second motorcycle.
1
Just like the previous post said, get rid of the excess throttle cable slack.
919s are notorious for it from the factory, and it really makes a difference.

2
You will see three things about Power Commanders on this site about what you have described.
A
No difference
B
I don't have that problem and my bike is stock (sometimes with slipons)
C
A power commander with a different map solved my problem (sometimes and sometimes not resetting the TPS through the Power Commander with your home computer)

There is clearly variance from bike to bike.
Likely the actual TPS position.
Altitude could be a factor.
Riding pattern is also a factor.
Stop and go in 1st gear is the worst.
Personally, my situation was C.
Stock, mine was a nightmare crawling in 1st in traffic on hot days especially.
Now I can walk it down well below 1000 RPM, no clutch at all, and throttle up or down with nary a balk.
Unlike before when it was in bucking broncho mode and drove me nuts.
And the mush front springs make it worse if yours is a bucker by nature.

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post #4 of 22 Old 02-02-2011, 08:52 PM
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try riding with your index finger on the front brake perch. it really helps with throttle inputs

'04 Honda 919, Candy apple red met., 17/44t sprockets,f-16 windscreen,delkevic ss exhaust,Tharbars,givi engine bars, billet alum. led turns w/ running lights,red adj.levers from china, bar end mirrors,grip heaters,adj. foot peg brackets,adj. bar risers,dunlop Q2(that are better than your pp 2ct,lol)bike wired for gps and phone charger
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post #5 of 22 Old 02-02-2011, 09:20 PM
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I change out my grips within a week of getting a new Japanese bike - I find stock grips too skinny and choose a 'fatter' grip.

100% agree regarding throttle play - adjust it out (you do need a couple mm) and you'll find it a lot easier to ride.

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post #6 of 22 Old 02-02-2011, 10:11 PM
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yup that was the first thing i did was adjust the throttle free play out... made life MUCH easier.

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post #7 of 22 Old 02-03-2011, 04:19 AM
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A different approach...

+1 on taking out the the cable slack--best 1st move.

...Changed the sprocket ratio from OEM 16/43 to 17/45. The off-idle jumpiness is effectively eliminated, while retaining the stock final drive ratio for the most part (2.65 v 2.69 for stock). The bike's very smooooth now, without feeling like it's on Prozac...
Of course, you can change the sprocket ratio to whatever you want, from hooliganistic responsiveness (2.70 & up) to taller gearing for lower RPM and better mileage for distance commuting and touring (2.65 & lower), but that's a whole 'nother thread....

Never try and teach a pig to sing: it's a waste of time, and it annoys the pig.

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post #8 of 22 Old 02-03-2011, 08:54 AM
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+1 I had the same troubles w/ the 9r before. Surely the throttle response difference between an EFI'd inline 4 and a carb'd twin is considerable from the get go. Get some gel grips, adjust the slack, and ride, ride, ride! You will get used to it in no time.

Feather the clutch a little?

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post #9 of 22 Old 02-03-2011, 09:56 AM
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Using a crampbuster (or throttle rocker) made a big difference for me. It lets you use the palm of your hand to help stabilize the throttle better.

CrampBuster - The Original Motorcycle Cruise Control

Madmotor
'06 919

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post #10 of 22 Old 02-03-2011, 10:00 AM
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i dunno what jumpieness you guys are talking about... cant be anyworse than my crf250x... so i guess i think its just fine.

btw a 15tooth front, and the stock rear makes for SO MUCH FUN!!!!

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post #11 of 22 Old 02-03-2011, 01:14 PM
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My first season on the bike it was hard to keep the throttle smooth. I think miles on the bike and me just getting used to it eliminated the problem. My brother-in-law has my old CBR and the last time I rode it, I couldn't believe how sluggish the carbs felt. You'll get used to it.

*EDIT* oh yeah, welcome to the forum. Lots of CA guys on here.

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post #12 of 22 Old 02-03-2011, 01:20 PM
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also i found the return pull cable, eliminate any slop in that cable as well makes it sooooo much better.

but yes.... time on the bike is the best thing.... your mind learns everything subconsciously.

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post #13 of 22 Old 02-03-2011, 03:20 PM Thread Starter
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thanks for the advice...all sounds good. Will definetely try adjusting the throttle first.

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post #14 of 22 Old 02-03-2011, 03:37 PM
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+1 on cramp buster combined with removing throttle cable slack. Smooth as can be without a PC.

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post #15 of 22 Old 02-03-2011, 04:57 PM
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did the cable adjustment, kids bought me a Power Commander and I found that you have to make a concerted effort to not let off the throttle to the same extant you're accustomed to from years of riding bikes with carbs.

That's my story and I'm sticking to it
Rich

P.S. Rumor has it that spring is coming

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post #16 of 22 Old 02-03-2011, 09:16 PM
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Quote:
Originally Posted by Rich Jura View Post
did the cable adjustment, kids bought me a Power Commander and I found that you have to make a concerted effort to not let off the throttle to the same extant you're accustomed to from years of riding bikes with carbs.

That's my story and I'm sticking to it
Rich

P.S. Rumor has it that spring is coming
theres riding seasons? ride here all year long in so cal... poor bastard

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post #17 of 22 Old 02-04-2011, 11:24 AM
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Quote:
Originally Posted by drewvir View Post
try riding with your index finger on the front brake perch. it really helps with throttle inputs
This.

I cover the front brake lever with index & middle finger. Adjusting the brake lever position for comfort is important (clutch lever, too). I like a straight line from shoulder to top-of-grip to top-of-lever, then adjust the lever in or out to allow full braking with two fingers without squishing the two fingers remaining on the grip.

I have MUCH better feel and control this way. A 5-finger throttle grip just doesn't work well.


ETA:
Removing throttle cable slack helps immensely!

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post #18 of 22 Old 02-04-2011, 12:21 PM
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Quote:
Originally Posted by TexasTraffic View Post
This.

I cover the front brake lever with index & middle finger. Adjusting the brake lever position for comfort is important (clutch lever, too). I like a straight line from shoulder to top-of-grip to top-of-lever, then adjust the lever in or out to allow full braking with two fingers without squishing the two fingers remaining on the grip.

I have MUCH better feel and control this way. A 5-finger throttle grip just doesn't work well.


ETA:
Removing throttle cable slack helps immensely!
i have found myself doing the same, i usually ride round town with index and middle covering the front brake, mainly for quick stopability in case of an emergency... but it does make it easier to do low throttle openings

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post #19 of 22 Old 02-04-2011, 12:35 PM
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Sorry I'm getting in late on this thread, but I found that adjusting the slack out of the throttle was my solution. That and seat time. I first thought the bike was like riding with an on/off switch for a throttle. All better now.

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post #20 of 22 Old 02-04-2011, 04:38 PM
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Quote:
Originally Posted by cmurphy84 View Post
Sorry I'm getting in late on this thread, but I found that adjusting the slack out of the throttle was my solution. That and seat time. I first thought the bike was like riding with an on/off switch for a throttle. All better now.
+1, I've had to adjust my cables twice now(bought the bike new), that and riding time made all the difference.

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post #21 of 22 Old 02-05-2011, 08:46 AM
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I think I'm gonna adjust the throttle cable tomorrow morning... It is 11.45pm now.... Thank you guys for the tips..

-RJ-

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post #22 of 22 Old 02-05-2011, 09:43 AM
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Quote:
Originally Posted by nd4spdbh View Post
i have found myself doing the same, i usually ride round town with index and middle covering the front brake, mainly for quick stopability in case of an emergency... but it does make it easier to do low throttle openings
Yes, I started covering the brake for that reason and discovered the added benefit of better throttle control.

One quickly learns the benefit of quicker reaction time when most of your seat time is in heavy traffic. Cover that front brake!

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