Carving Out For a Ruckus

[sanjuro]

I think yours might be a Malossi or CHP variator, but probably the Malossi.

BTW, the Malossi variator for the Super Dio ZX is 89mm from edge to edge. Also, the fixed sheeve on the front pulley assembly is 114mm from edge to edge using the Super Dio ZX part.

[Wheelman-111]

Greetings:

I had a Malossi on Flash II briefly. 89mm sounds right as it was a hair smaller than the Polini. This Aftermarket Ruck vario is Huge but I did not see a brand etched anywhere on it. I imagine Malossi would have engraved the proud brand as they did on the Aero version.

The rectangle I carved out of the starter housing saved a Kilo of weight!

[drizzle]

the ruckus variator upgrade was the best 30 bucks i've ever spent. from struggling to get to 35, to cruising with style at around 40, i'm stoked. and this was just from a 5 minute cruise around the block! i'll see what i'll pull off tomorrow with some warmer clothes and more time...

[evilone]

the ruckus variator upgrade was the best 30 bucks i've ever spent. from struggling to get to 35, to cruising with style at around 40, i'm stoked. and this was just from a 5 minute cruise around the block! i'll see what i'll pull off tomorrow with some warmer clothes and more time...

Stock or aftermarket ruck vari?

[drizzle]

stock ruckus variator.

[Wheelman-111]

Greetings:

Show some pics the next time you have the cover off? Please measure and post the vario diameter too.

How'd it perform on the subsequent test rides?

[evilone]

Stock ruck looks like 92mm. I don't have my calipers handy right now, 92mm is real close.

[drizzle]

Greetings:

Show some pics the next time you have the cover off? Please measure and post the vario diameter too.

How'd it perform on the subsequent test rides?

well i couldnt do any gnarly wheelies anymore as i could with the stock variator. but besides that it was pretty much normal (stock) acceleration, but instead of wimping out around 30 and slowly climbing to 35, it continued to accelerate strong to the F on my fuel gage.

[Wheelman-111]

Greetings:

Wow! 5 MPH for $30 is a useful and cheap mod! The difference can be like flowing with traffic vs being a traffic cone.

Curious that it adversely affected take-off. Does it need a shim or just lighther rollers?

[drizzle]

only reason i was doing wheelies in the first place is because i swapped my 82 jet to 85. putting the ruckus variator in brought my acceleration back to "stock", you could say. 9g rollers, no shims or anything... just shaved the case and stuck it in like any other variator.

although lighter rollers would probably be useful. RPMs are low the entire time up until 35 or so.

[aerorob]

my new philosophy on roller tuning is you want them to be as light as possible while still being able to acheive your "top speed" keeping the rpms as high as possible while still acheiving a pretty high gear.
but that is just my strategy because i have a couple long hills where i am expected to go around 40mph to keep up with cars.

[Wheelman-111]

Greetings:

As you probably know, Ruckii use substantially wider belts, along with a longer Boss that separates the pulleys farther. There may be something about the dimensions of the stock Ruck variator that prevent the SE/05 belt from riding down as low toward center when you use the stock SE pulley boss. That would explain more sluggish take-off.

You can find 12 and 14mm I.D. washers in several thicknesses at places like Sutherland's and Home Depot. I filed one down to 1.05mm when I used a Polini 16.25 belt. Put it between the ramp plate and the boss, and it separates the fixed pulley that much more from the movable drive face. Be sure not to go too thick, or there'll be slippage until the variator starts to move out. Also beware the possibility of leaving too little spline engagement with the fixed pulley, which can cause them to strip and pretty much mung your crankshaft.