Hobbit wizard kit top speed expectations?

Hi guys just installed the 70cc wizard kit. Wondering if anyone's tried it on their Hobbit too? And the results they got?

Running a standard carb 90 jet, proma circuit and notched variator. I'm still breaking it in, so I haven't tried it at WOT for too long.

Re: Hobbit wizard kit top speed expectations?

Depends on how well you tune the vari and rear pulley and if you spaced the cyl to clear the ex at BDC, and pipe and carb and reeds.

They’re 45mph cyl if you do most things wrong. 55 jugs if you do most things right. 65 if you do everything right with v reeds. 70mph if you deck and add aux ports and run a 24 with race gears with a tjt and modified rear pulley or Camino (edited)

Re: Hobbit wizard kit top speed expectations?

Oh, you’ll probably get to 45ish with that setup. Maybe 50 but I doubt it

Re: Hobbit wizard kit top speed expectations?

> JBOT Admin Wrote:

> -------------------------------------------------------

> Depends on how well you tune the vari and rear pulley and if you spaced

> the cyl to clear the ex at BDC, and pipe and carb and reeds.

>

> They’re 45mph cyl if you do most things wrong. 55 jugs if you do most

> things right. 65 if you do everything right with v reeds. 70mph if you

> deck and add aux ports and run a 24 with race gears with a tjt and

> modified rear pulley or Camino

That's great thanks, I've spaced the cylinder so it piston fully clears all the ports. I've yet to deck the cylinder as I wanted to see what the compression was like before doing so. Think about 1mm taken off would see it rip. But, having only broken it in for about 8 heat cycles and about 2 miles of varied riding I'm reluctant to really open it to WOT for a prolonged period of time so it's hard to gauge its potential. Definitely fires rights into the pipes power band and hits the pipe mid range, typical with that proma! Nice low end is quite snappy too. Did you find it took a while to reach top speed once opened up after it had hit it's peak power band with this cylinder? From how it rides already I envisage it to hit the pipe up to about 35, then Accel slowly gradually up to the 45 mark.

Re: Hobbit wizard kit top speed expectations?

Fuck break in myths

Run it wot just make sure you’re on the rich side

Re: Hobbit wizard kit top speed expectations?

yea i did that. i think it still has spacing issues?

anyway it was high 40s. it was fun as hell, i loved it but yea you're not gonna get much over 50, if any.

Re: Hobbit wizard kit top speed expectations

Tweaker trash /

Soft breaks are for the rider not the engine. A properly built engine is already at specs no need to “break it in”.

The bike factories put the new bikes on the dyno and hole shot thrue all the gears to test them.

Re: Hobbit wizard kit top speed expectations?

Awesome cheers fellas! Yea I definitely think the engine is pretty solid, I rebuilt everything, apart from the crank it's self. Hopefully she will withstand a blast, so I can get to see the top speed. Really excited. But it's not stopped snowing here for the last week haha

Re: Hobbit wizard kit top speed expectations?

Just for an update, opened it up today. As predicted still great mid range. it does four stroke a little at 1/4 throttle but it has a little richer than normal jet, but this goes once I open it full throttle so happy with that. It gets quickly up to 30-34mph, then a fairly steady climb to 38-40 mph. I haven't actually had enough road long enough to see the max speed. But no doubt it will get to the predicted 45mph. It's incredibly fun to ride. Hopefully the fragile piston won't blow up on me anytime soon hehe.

Re: Hobbit wizard kit top speed expectations?

Tweaker trash /

> Luke W Wrote:

> -------------------------------------------------------

> Just for an update, opened it up today. As predicted still great mid

> range. it does four stroke a little at 1/4 throttle but it has a little

> richer than normal jet, but this goes once I open it full throttle so

> happy with that. It gets quickly up to 30-34mph, then a fairly steady

> climb to 38-40 mph. I haven't actually had enough road long enough to

> see the max speed. But no doubt it will get to the predicted 45mph. It's

> incredibly fun to ride. Hopefully the fragile piston won't blow up on me

> anytime soon hehe.

Just make sure those bearings are wet

Re: Hobbit wizard kit top speed expectations?

> Tweaker trash Wrote:

> -------------------------------------------------------

> > Luke W Wrote:

>

> > -------------------------------------------------------

>

> > Just for an update, opened it up today. As predicted still great mid

>

> > range. it does four stroke a little at 1/4 throttle but it has a

> little

>

> > richer than normal jet, but this goes once I open it full throttle so

>

> > happy with that. It gets quickly up to 30-34mph, then a fairly steady

>

> > climb to 38-40 mph. I haven't actually had enough road long enough to

>

> > see the max speed. But no doubt it will get to the predicted 45mph.

> It's

>

> > incredibly fun to ride. Hopefully the fragile piston won't blow up on

> me

>

> > anytime soon hehe.

>

> Just make sure those bearings are wet

Wet? The crank bearings are NOS replaced about 100 miles ago .

Re: Hobbit wizard kit top speed expectations?

> Wet? The crank bearings are NOS replaced about 100 miles ago .

So you split the case but didn't put in a new crank with all your other upgrades? they're only 99 dollars.

Re: Hobbit wizard kit top speed expectations?

Yeah wizard kit pistons can blow up, they went too far trying to lighten. But your setup seems pretty forgiving.

If you’re running the stock crank you really should mod the rear pulley for more travel to take pressure of the weak crank

Re: Hobbit wizard kit top speed expectations?

> Chris . Wrote:

> -------------------------------------------------------

> > Wet? The crank bearings are NOS replaced about 100 miles ago .

>

> So you split the case but didn't put in a new crank with all your other

> upgrades? they're only 99 dollars.

Yup, to be honest I was just going to keep the thing pretty stock until my lovely wife bought me a kit for Christmas haha. If it breaks It won't take long to put a new one it.

Re: Hobbit wizard kit top speed expectations?

> JBOT Admin Wrote:

> -------------------------------------------------------

> Yeah wizard kit pistons can blow up, they went too far trying to

> lighten. But your setup seems pretty forgiving.

>

> If you’re running the stock crank you really should mod the rear pulley

> for more travel to take pressure of the weak crank

Yea mate it definitely looks that way, the local shop sells 46mm pistons for about £17 they're nothing special, but ideal replacements for short term fixes. That sounds like a brilliant idea. I had the rear pulley apart not long ago, what do you recommend grinding the little nipples down to allow it (belt) to sit deeper?

Re: Hobbit wizard kit top speed expectations?

I think as long as your belt tension is adjusted properly you'll be fine, people get into travel problems when the belt is too tight or they go to an aftermarket vario

Re: Hobbit wizard kit top speed expectations?

It gives you better low end G bizzle

Yeah I pop 3 out and weld the two plates together, then the other 3 I grind them down, then weld , then grind or turn on a lathe til flat. It does help shifting overall

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