Another "Franken-Project" from yours truly...
Thru the time of ownership and all the mods I have done on the Vaq I had the desire to tackle another project, and this kinda goes waaaay back to the beginning.
Back in 2011 when the stock rr tire wore out I replaced it with a larger and also "taller" rr tire, a 180/70. I liked how that tire altered the gear ratio and the lowered engine rpm out on the hiway. Only drawback was that since the skoot was at the beginning of it's development power-wise the taller tire somewhat reduced the acceleration. Add onto that was the 7200 ml lifespan and after that tire wore out it was a search for a higher mileage tire.
The Commander 2's have given me good life, but from new to worn out the circumference of the tire changes so much that the affect is noticeable. Too much shifting in town and elevated engine rpm, specially on the hiway. I could notice the change as soon as the tire had 6000 mls, and now at 7000 with the start of a flat spot it's getting more noticeable. And irritating.
With the recent intake mods and new mapping the power and quality of power has improved noticeably and the desire to "fix" this gearing situation came to fruition. For many months I had been researching altering pulley sizes, first to a larger front pulley. That was deemed not possible to insufficient clearance around the front pulley, so a smaller rr pulley was my goal. All the 1700's use the same size, and other Kawi's had pulley sizes not within my goal of tooth count of 2-4teeth smaller.
First order was to figure out the belt situation. Did Kawi and Yami use the same style belt? Yes they did. I was gonna need a shorter belt to work with the smaller rr pulley, was that available? Yes. It was a belt listed for Harleys and with further research I found most skoots use belts with the same pitch. This was a good thing for sure and could of been a deal breaker.
I expanded my search to include other brands and found Yamaha's use a 70 tooth rr pulley, 2 teeth smaller. Since I did not want the skoot down I found a used Kawi rr pulley/pulley hub on eBay and bought it, that way I could whittle on the hub as needed without sacrificing mine. I eventually found a Yamaha pulley/hub assembly that had been taken off a new skoot that got some custom wheels. It had absolutely no wear, was basically brand new. So with a new shorter belt, a new stock front pulley, a smaller rr pulley and a spare Kawi pulley hub the fun was about to begin...
"TRUE HAPPINESS IS IN THE HEART,NOT IN THE OUTSIDE FIXES!!"
WITH OVER 42 YEARS AS A MOTORCYCLE TECHNICIAN/HI-PO SHOP OWNER I AM A PURVEYOR OF FACT NOT FICTION!
"WE LIVE OUR LIVES IN CHAINS NEVER KNOWING WE HAD THE KEY"
Last edited by RACNRAY; 11-01-2014 at 07:50 AM.