M750 Scrambler Project

[amcjen]

Good stuff! Looks right at home on that trail.

[koko64]

Good stuff! Looks right at home on that trail.

Cheers.

[greenmonster]

15/41 is standard gearing for 750, I usually buy 750 chain/sprockets package for my 900.

[Speeddog]

You've got too heavy a bike with too little grip to do these sorts of lean angles on dirt, but they're illustrative of body position.

Having a bit less success with the corner entry photos, bike and rider position looks odd and generally not photographed much....

Mid corner, right elbow bent a lot, body near upright, inside leg up and forward

left corner mid sumo YZ-supermoto-extreme-lean by speeddog8308300, on Flickr

If you Google 'roger decoster' images, he's nearly always in proper body position, and many of the pics are from the short-travel era, so more appropriate to riding a scrambler.

[koko64]

A Belgian Mick Doohan of MX.  Thanks. The opposite elbow is bent down for corners. I only do that in a chicane at Broadford track (the esses). So thats normal on dirt? Ok.

It's like I've boxed all my life and taken up wrestling.

[koko64]

Just weighed and compared components. Changing the pipes and battery, removing a disc, brake line junction and caliper, running pods, lighter mirrors, fairing and brackets and removing the seat cowl has dropped about 14kg. The Barkbusters, risers and alloy bar swap put back a kilo, so about 13kg net which is a 28 pound weight loss, half from right under the tank and 3 kilos off the front end. Not bad and noticable.
Have to say I'm glad I chose a 750 for this task as my modified M900 feels brutal on dirt roads and in the wet both power delivery and suspension wise. Wise guidance here prevailed. Cheers.

[Howie]

Nice.  Bet the bike is real nimble.

[koko64]

Yeah, steers beautifully and in a predictable, linear fashion. Arcs quite smoothly through the apex of a corner with little effort.
It's a joy to ride. I can't get over how sweet the motor is.

[Howie]

Have you rode with a passenger yet? 

[koko64]

Yes. The GLW has been on the back a few times now and it has been great. Between the upright riding position. lower pegs and custom seat the ergos have suited us. I have only ridden two up on paved roads so far. The suspension feels good two up on paved roads, but needs work for the trails.

[koko64]

IMG_1344 by Tony Kokonis, on Flickr

Since the SS guard didn't fit the tyre, this was the protection I settled for.

[ducpainter]

That'll work.

Do they come off easily to check for dirt that's made it's way in?

[koko64]

Yes, just Velcro on and off to wash them and check underneath.
Being soft neoprene they kind of squish up and down with the fork like a gaiter but are in contact with the forks like a skin.

[Howie]

I have no recollection of the jetting on my 750, but do remember using Dynojet needles with Factory Pro needle jets..  I also recall going richer on the pilots to make up for the seized idle mixture screws, going back to stock after finding used bodies with functioning idle screws.  If my memory is correct our carbs were set leaner than yours.  Cold running was ridiculous. Never got around to trying stock springs.

Oh, the main jets,needle and clip position was whatever Dynojet recommended for stage II.

[koko64]