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FJR Motorcycle Forums
FAQs and Common Historical Info
Valve Checks vs. Adjustment Required Poll
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<blockquote data-quote="Fred W" data-source="post: 593558" data-attributes="member: 3828"><p>It's been quite a while since I started this poll, and I never followed up with any kind of statistics.</p><p></p><p>Here's the roll-up:</p><p></p><p>48 Total Valve Checks were reported (to date).</p><p></p><p>30 were 1st time checks and 18 were subsequent checks.</p><p></p><p>Only in 25% of all checks was there any adjustment required.</p><p></p><p>Of particular interest, this is true for both the 1st time (76% OK) and subsequent checks (72% OK) within the accuracy of the poll.</p><p></p><p>60% of people decided to pay to have their checks done.</p><p></p><p>Again, this was true of both 1st and subsequent checks (63% 1st timers vs 55% 2nd)</p><p></p><p>The most interesting statistic:</p><p></p><p>Of the checks done by dealers, adjustment was required <em>only 18%</em> of the time.</p><p></p><p>Conversely, of the checks done by owners, adjustment was determined to be required <em>37% of the time</em>.</p><p></p><p>Conclusions: Both numbers of required re-shims are low, but you might conclude that, either the owners doing their own checks are more fastidious about it (false negatives occurring at the dealers), or the owners don't know what they are doing and incorrectly re-shim when it's not really needed (false positives in their tests).</p></blockquote><p></p>
[QUOTE="Fred W, post: 593558, member: 3828"] It's been quite a while since I started this poll, and I never followed up with any kind of statistics. Here's the roll-up: 48 Total Valve Checks were reported (to date). 30 were 1st time checks and 18 were subsequent checks. Only in 25% of all checks was there any adjustment required. Of particular interest, this is true for both the 1st time (76% OK) and subsequent checks (72% OK) within the accuracy of the poll. 60% of people decided to pay to have their checks done. Again, this was true of both 1st and subsequent checks (63% 1st timers vs 55% 2nd) The most interesting statistic: Of the checks done by dealers, adjustment was required [I]only 18%[/I] of the time. Conversely, of the checks done by owners, adjustment was determined to be required [I]37% of the time[/I]. Conclusions: Both numbers of required re-shims are low, but you might conclude that, either the owners doing their own checks are more fastidious about it (false negatives occurring at the dealers), or the owners don't know what they are doing and incorrectly re-shim when it's not really needed (false positives in their tests). [/QUOTE]
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FJR Motorcycle Forums
FAQs and Common Historical Info
Valve Checks vs. Adjustment Required Poll
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