No idle = More engine braking

**texmo** · 15th July 2007, 16:00

Reducing the lag between off brakes and on gas. The moment you release the brake there will be a lag as you orient yourself to the speed you have. Focusing on that lag can shorten it.

The above quote was taken from Keith Codes web site.4. One of the things he stresses is to get on the gas as quickly as possible.
Shaun wound the idle up on my bike as he explained its very hard to get on the gas due to mental blocks and winding up the idel helps you get over this. When he went to japan to race they did the same on his bike to begin with.
So weather or not it increases your engine braking by winding down your idle its probbalby more ideal to wind your idle up.
If you read the fourms he also talks in there some where about not to bother with engine braking as your rear brake works better.

**ZeroIndex** · 15th July 2007, 18:29

Originally Posted by texmo

Reducing the lag between off brakes and on gas. The moment you release the brake there will be a lag as you orient yourself to the speed you have. Focusing on that lag can shorten it.

The above quote was taken from Keith Codes web site.4. One of the things he stresses is to get on the gas as quickly as possible.
Shaun wound the idle up on my bike as he explained its very hard to get on the gas due to mental blocks and winding up the idel helps you get over this. When he went to japan to race they did the same on his bike to begin with.
So weather or not it increases your engine braking by winding down your idle its probbalby more ideal to wind your idle up.
If you read the fourms he also talks in there some where about not to bother with engine braking as your rear brake works better.

+1

good stuff

**Spyke** · 15th July 2007, 18:41

looks like i'll be trying a few different ways of setting it up when i start racing again (try all the other ways to see the effects), thanks for the knowledge guys

**GSVR** · 15th July 2007, 18:51

I think most here assumed you were talking about roadracing. Now after looking at your bike (Looking for a dirtbike project) I'm wondering if you may have been asking this question in relation to dirtbike riding.

**Spyke** · 15th July 2007, 19:04

no i was asking in the direction of road racing, i did have a ct125 that i was racing at the bucket meets (didn't have a problem of the engine locking it up). but now im looking at getting a dirtbike for a cheap project so i can get some experience at the mechanical side and to learn how to do wheelies!.

**moT** · 15th July 2007, 23:00

i just have my idle at the factory reccomended rpm this is fine for me.. but if you feel you can race faster with idle on 6000rpm or 0rpm then go for it

**TygerTung** · 16th July 2007, 01:38

In keith codes book a twist of thr wrist, it recomended that you didn't actually use the engine for braking, as it is unpredictable.

If you're braking hard the back wheel isn't really touching the ground anyway as long as you have reasonable front brakes, so I wouldn't do it

**sAsLEX** · 16th July 2007, 01:44

Originally Posted by TygerTung

In keith codes book a twist of thr wrist, it recomended that you didn't actually use the engine for braking, as it is unpredictable.

If you're braking hard the back wheel isn't really touching the ground anyway as long as you have reasonable front brakes, so I wouldn't do it

Some of the newer engine management systems have changed this by having some of the butterflies remain open on a closed throttle to try modulate the engine braking effect.

**scumdog** · 16th July 2007, 02:05

Originally Posted by texmo

If you read the fourms he also talks in there some where about not to bother with engine braking as your rear brake works better.

There was a thread running about ten days or more back about the guy who had posted he had a faulty rear brake but was it needed anyway?.

A heap seemed to think a rear brake was just a decoration rather than something useful, maybe they should take note of THIS thread eh?.

**texmo** · 16th July 2007, 20:54

Originally Posted by scumdog

There was a thread running about ten days or more back about the guy who had posted he had a faulty rear brake but was it needed anyway?.

A heap seemed to think a rear brake was just a decoration rather than something useful, maybe they should take note of THIS thread eh?.

Maby, Pushing down on the rear brake just before you brake hard on the front can help stablize the bike. But it all depends like everything on the riders style. Wehn you are braking really hard you rear wheel shouldnt be on the ground any who.

**codgyoleracer** · 17th July 2007, 12:35

Adjusting the idel will depend on your riding style, type of track you are riding at and the track conditions. There can be some advantages in road racing with a higher idle speed if grip at the rear wheel is reduced. Lowering idle speed will brake the rear wheel longer into the corner - but I dont know if you could tell the differenc ebetween 1200 - 900 rpm (300rpm diff). If you set it at zero & balls up your down changing , get stuck betwen shifts or wahtever , there is a chance that the engine will stall during corner entry. This will be a pain when you let the cutch out again & stab it back into gear (especially if grip levels are low).
Typically you would increase the idle speed a little for road race use to suit your application / machine / conditons.

**DEATH_INC.** · 20th July 2007, 07:03

I reckon it'd be a bitch....stalling all the time and the huge hesitation going from off to on throttle would unsettle the bike soooo much....
I run at least 3000rpm idle....and as for the rear brake being a decoration, I can hardly ride without it.....

**sAsLEX** · 20th July 2007, 07:08

Originally Posted by DEATH_INC.

I run at least 3000rpm idle....and as for the rear brake being a decoration, I can hardly ride without it.....

Do use it when on the back wheel much?

**Drew** · 20th July 2007, 07:08

The amount of gas the bike is getting at idle, is so low, that I dont think it would make any positive difference.

Test it, ride along at a hundred k's, and back the throttle off by fuck all, and see how much it slows down, that's the amount of help it would give.

What Death said about the hesitation would surely be a mongrell too.

If it's a fuel injected bike you try it on, it could very well cause some problems since they regulate thier own idle now'a'days anyway.