upshifting with out clutch?
Posted April 16, 2006 - 07:15 AM
Posted April 16, 2006 - 10:38 AM
Posted April 16, 2006 - 04:20 PM
Posted April 16, 2006 - 04:22 PM
my 2c ...
Posted April 16, 2006 - 08:05 PM
Posted April 17, 2006 - 09:11 PM
You can shift them with out damage as long as theres not a load on it and your jumping up and down on the shifter.
when up shifting it just slides into gear with out the clutch. when down shifting, the motor and your back brake our usally trying to stop the beast, so there is load on the tranny. In those circumstances you need to clutch, or give the throttle a quick turn to unload the tranny, and give her a soft push down.
As long as your easy on the shift fork, you dont need the clutch, you will feel it in your foot.
Posted April 18, 2006 - 12:32 AM
You can shift them with out damage as long as theres not a load on it and your jumping up and down on the shifter.) Don't know about that ? Just did a 3 hour enduro 1 wr450f. 04 5th gear blown (mine ) 1 yzf 450. 04 5th gear blown. 1 yzf 250 gearbox seized. Three gearboxes in one race all yamaha.Hmmm.
Posted April 18, 2006 - 05:17 AM
Probably the most unreliable box out there at the moment! Truth be known!
A slipper clutch is a good way to go!
Those who don't use it are running on borrowed time! particularly with the Yamaha boxes! Speaking from experience! These boxes are basically crash boxes the dog gears slam in together. If they are under load it puts a lot of stress on a rather small area. The result is chipping the dogs away! weakest one first! The problem is the boxes haven't changed much but they are expected to do greater work! Look at the power output of the motors today! Still the box has parts in it that'll fit into early model 250 2strokes
Really' you want your bike to last the trail and not just win the drag race and blow up!
Believe me it is much more enjoyable to ride the bike and use the clutch then to sit there looking at the internals of your gearbox wondering where it all went wrong!
Posted April 18, 2006 - 08:23 AM
Posted April 18, 2006 - 10:42 AM
Posted April 18, 2006 - 12:21 PM
Posted April 18, 2006 - 12:56 PM
The less you use the clutch the less heat it generates and the less wear you get on the plates. Of course if you ride around stomping on the gearshift you'll eventually break something, but it doesn't take long to get smooth upshifting without the clutch.
For the record I did break the outer clutch basket on my WR, but I think they're a bit weak and do notch easily, so it may not have been related to clutch-less shifting.
Shifting in the air during a wheelie is best without the clutch.
Someone asked why engine braking is bad racing. I'd say it's due to rear wheel hop and it's easier to stall the engine since you lose rear brake feel.