got the tunning issues sorted out, air filters are too restrictive for the current setups (id is 1.75, carb inlet is 2.5 which is a huge difference, so i'll get some of the proper size on order), and once the jetting is bang on im going to look into building a cvt cover for it, and fabricate some shields to seal up the air filter/carb area as well. Also I think i'm going to need to build a brace that bolts to the heads and runs to the frame for extra support, as the motor is fairly heavy and if i plan to beat on it and catch air i forsee broken motor mounts in my future lol.

anyway heres a vid from todays test n' tune run, picked up an HD helmet cam with handbar mounts, works not bad outside of the dirty case which led to a blurry picture lol:

YouTube - Polaris scrambler with an ultra 680 triple

 

another quick vid, rained out the entire time so the vid is foggy, then the battery's went dead lol, anyway:

YouTube - Fastest polaris scrambler

 

Your never going to find a safe place to open that machine up, but great job. Unlike a sled there is no flat frozen wide open lake to hit 100mph on in safety ,so be careful.

 

Oh yes there's lots of places to , I'm a farm kid and have a couple thousand arces to play on, also i plan on doing a bunch of river runnin as i few places where i work (ft. mac, alberta) and a few places where i have some family just north of edmonton ab, already got the hand warmers installed lol.

But you are right, the rough trails make riding this beast a handful, as the power comes on like a freight train and its very easy to get going to fast. That said i will be tracking down some heavy rate front springs and get the shocks freshened up (front seals are leaking). Also i think i will be down sizing on the rubber and tracking down some aluminum wheels to make everything a bit easier to handle, as the thing is a bugger to steer under WOT in 4wd lol.

 

So the new filters are here and on, picked up a new set of tires after finding out in the test runs that the tsl vampire's are way to rough at high speeds (went with ITP holeshots, 23x8 front and 22x11 rears), also wanted to cut the weight as the thing is a bit porky in the front lol. Picked up an autometer tach, going to wire it up as a 6cyc and see if it works as i've figure it should, also picked up a 10" electic fan as i've found the factory one just isn't cutting the mustard in the slow speeds when the voltage is running low, so it was either build a shroud and keep it or get a bigger fan, and the bigger fan was only 64 bucks. Also picked up a tether kill switch, hand warmers, and a bridge rectifier so i can run the power wire from the motor to the voltage regulator then to the rectifier which will convert the ac current to dc and as such be able to run the battery and all the accessories that i need to.



the new tires:





The tach:



the new fan:



I have more room to install it in front, and it should add a bit of extra protection too, i'll try it first to pull and see how well it works, theres quite a bit of restrictions to suck air in through the front, so it may be easier to blow air out the air, we'll see, its easy to swap around if i have to change it.


the new filters:




a look at how much room i have for my right foot


How the quad sits as of today:

 

I am really digging this thread.Keep up the good work.winter is coming in down here in southcarolina and I need a project like this!

 

The biggest pita is fabbing mounts and getting everything to clear, as long as you have a complet donor sled this is actually not that bad to do.

 

I hear ya.I used to build rock crawler buggies from the ground up and had to fab everything,but now im onto atvs because they are cheaper and alot easier to work on and build.I have an old warrior that needs some loven and I think I have a line on a hibusa engine so thats my winter project.keep it up,intrested to see how this does on the trails

 

I'm thinking it'll do well on the trails, i'm guessing it'll be a bit of a workout to ride as it's a bit heavier now, and the scramblers are more of a standup type of quad to ride too. anyway I have a bit of time off now, so I'll be able to finish the little things, and as long as it's not to cold in the garage I have to work in for the next few days I should be able to get the graphics I pickedup installed too, and maybe go for a few rips after I get it registered properly.

 

Quick little progress update on the machine, I recovered the seat with a new black factory cover, as the old red one was in pretty rough shape, new electric fan is installed, the electrics minus the lights are all wired in, was able to get a bridge rectifier wire in after the voltage regulator factory to the sled motor, (needed to convert the ac to dc, and everything works good, have enough current output to run everything), tach is hooked up, but i need to get a hold of autometer and see if the tach will work with the ac current as the coil's and motor ground to the frame/motor, and the accesory power is isolated off the battery, so a bit of tweaking there, put the rear rack back on as well, then i swapped out the front outer wheel bearings, changed the lube, swapped out the bent left front a-arm, then i mounted up 4 new paddles tires and aluminum rims: