Thursday, August 23, 2007


Yesterday I inspected the shim and countershaft sprocket I installed on my 450X. As you can see even though the recommended shim was added and did provide enough tolerance to allow the smaller circumference of the sprocket to keep from hitting the case, it still splayed a small grove into the case , creating a bur and  a couple sharp shaving not seen. I needed to know if the worst was over or if it was still cutting in. So I first de-burred the area with a Drumel tool, (such handy tool for tight jobs) and then painted it with a black Sharpy to see any changes after the test. After the test with the shim installed no change had occurred (great), but when the shim was removed  and turned by hand, it revealed that more metal  came off unless the shim was used although two shims would have prevented the small burr.
   I also installed a new rear  larger sprocket to further bring the gearing down. Although lower gearing sacrifices speed (not needed off road), it provides  much better  low speed controllability especially when climbing or negotiating complicated trails when it is easy to stall the engine, which lower gearing eliminates better then a larger flywheel.  The hydraulic ATV stand I used looks like many that retail for as much as $400 but it is actually a Chinese copy I bought on sale for $39 and works excellent as some of these type products are not complicated machine's and work well when cheaply copied by China, however their attempt copying complicated cars and motorcycles so far  has resulted in huge reliability and craftsmanship issues.

   I also worked on my Z400 ATV quad installing a "twist throttle" replacing the "thumb throttle" which was giving me trigger thumb after riding more then 30 minutes. The Streamline twist throttle works great and is easy to use and very familiar as I didn't experience any of the problems some have claimed except for one. Some riders complained that the twist throttle conversion made their quad seem less responsive. This of course due to the fact that the thumb throttle is leveraged very high and fast going from close to wide open in a movement of only 1 inch and why you get the illusion that you have more and quicker response while only placing a larger load on the thumb joint. The twist throttle requires about 1.5 inches but is much easier to control and infinitely easier on the hands as the entire wrist joint is being used in a more natural movement.
   I also installed a Dynojet Jet kit and a cooler heat range iridium spark plug. The kit works well but will require a bit more adjusting (whatjet kit doesn't) as the initial install setting are default and additional jets are supplied to refine for local riding conditions. The cooler iridium plug really made a difference, requiring the radiator fan to kick on just one time today in this hot weather, however winter may require me to revert back.

That all for now and I leave you with this holy scripture:

1 Corinthians 8

If one loves God truly with affectionate reverence, prompt obedience, and grateful recognition of His blessing, he is known by God recognized as worthy of His intimacy and love, and he is owned by Him. Although there are many false so-called gods, whether in heaven or on earth, as indeed there are many of them, both of gods and of lords and masters, yet for us there is only one God, the Father, Who is the Source of all things and for Whom we have life, and one Lord, Jesus Christ, through and by Whom are all things and through and by Whom we ourselves exist.