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The trike now will do better than 50 MPH at about 7400 RPM.  I bought new trailer wheels, (10X6)
new tires (65), and two adapters from Adapter Kings to convert from 110mm to 4" to support the
new wheels.  I changed the M11 bolts on the hub to 7/16" and used 1.5" grade 5 bolts and steel
hex nuts to cinch the adapter and tightened to 100 ft pounds.  Bought 12X1.5 lug nuts to bolt the
new wheels to the adapter studs.  The only thing remaining is to adapt the rear fenders to fit over
the new wheels/tires.  Still working on that problem.

Based on another reply to this original posting, I purchased ST205/65-10 tires. Further research
indicated that size is not recommended for 8 inch wheel width.  If I had purchased ST225/65-10 or 
ST235/65-10 tires, I could have used the existing wheels, instead of the process above.  The wheels
and adapter set up is able to handle 1100+ pounds per wheel and speeds well over 80 MPH.  If the
stock wheels can handle 50+ MPH safely, the tires would be the only required change when using
the larger 225/235 mentioned above.  I went to Goodyear to mount the new tires to the new wheels,
and they did it for no charge!  I tipped the service guy. 

This site was helpful in determining the suitability of the tires: mostwheels.com/rimwidth.html ...
The included information stated the ideal size wheel for a given tire/wheel size is the middle of the
range of acceptable sizes.

That is all for now. These updates allow me to not have to be at full throttle to reach 45 MPH. Now
I have to back off the throttle to keep from speeding!


Ken

Here is an update. The trike has been bumped to 99 (100)cc and a new carburetor was installed because the power curve would never settle down. I had to put the original barrel into the variator so the belt would stop flying off and being destroyed! The trike will now reach 50 MPH, provided no heavy wind resistance. The weights are 10g, which seems to given the optimum torque, while no longer
flying the belt to destruction. Since buying this unit, we moved closer to Alabama and bought a dune buggy. No need for this Q6 beast anymore. Contact me if you would be interested in buying this souped up monster. Over $2500 invested, but will part with for $1500 or good offer. It has been
serviced by reputable mechanic in the Pace Florida area. He increased the displacement and installed a high quality carburetor as well.

This unit also has a rear storage compartment that can fit two full size helmets.

Contact me if interested.

Here is a follow up...

I now have a Dr Pulley variator, After market clutch set/bell with 1500 RPM torque spring and adjustable clutch springs.
I currently have three 6 gram rollers, expecting Dr. Pulley sliders (4 gm).  Added performance air filter and performance
exhaust.  I also have a #45 idle and #95 main jet.  With this set up I have had it up to 40+ and 92-9600 RPM.  The
additional grams for the sliders should bring it down to optimum torque RPM.  I had to add a pipe to compensate for the
differences with the trike for the performance exhaust.  Parts for Scooters was able to get all of these components to
me very quickly.

Results so far with engine still during break in period...  I have even had my wife on the trike with me, with minimal loss
of performance.  This little powerhouse gets looks as it travels along the roads of Destin.  

Still need to set the idle and mixture to optimum, but very pleased with results so far.


Ken

 

I already replied to your PM.

I am waiting for a tool that immobilizes the variator for loosening and tightening.
Once that finally arrives, I will be taking a look. The specifications say the best
torque is at 6800 RPM, but that cannot be achieved with the stock weights. In fact,
I found the RPM to max at 6080 with changes I have made so far, but that drops through
the gearing to in the 4000 to 5000 range. I have had it as high as 7200 down hill, so
the engine just needs the variator to allow it to spin more easily to get to maximum torque.

If the JR08 is a #80 as assumed, the trike was starved for fuel using that jet, which is why I changed to a #85.  It seems that if the jet was too big it would bog down with the excessive fuel.  I also ran it for about 40 km yesterday at various speeds from 25 up to 35 plus after changing the spark
plug to an iridium, and the plug electrode is brown, which should indicate the air/fuel mixture is good across the spectrum.  The needle has only a single notch, so is not adjustable except with washers and longer screw to hold it in.  Perhaps the jet is compensating for that?

As for the weights, the trike takes some time to get up to speed, so it is likely the variator is getting to the top too soon, as you suggest.
There is no information on the weights without taking the variator apart, unfortunately.  

That is what I would do as well, but you have not seen the crazy drivers down here.  
I would like to live long enough to get through the break in period.

Ken