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Old 11-01-18, 05:04 PM   #34
Dave-the-rave
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Join Date: May 2012
Location: London
Posts: 167
Default Re: 2005 SV650s Valve Clearance Question

Your valves will be fine as long as it's put back together right.

The 172 and 178 are factory shims it's not a problem. You can only buy shims in 005 as you have noticed. Seems you measured your gaps in Imperial which isn't helpful so I've converted them as best I can.

Front Cylinder

Intake - [.004] 0.102
[.0035] 0.089
Exhaust-[.007] 0.178
[.007] 0.178

Rear Cylinder

Intake- [.0025-.003] 0.069
[.0025-.003] 0.069
Exhaust [.007] 0.178
[.007] 0.178

So by my calculations all your valves are tight except one intake which is right at the edge. Now I'm not too happy about measuring a metric bike in imperial then converting to metric. Not with feeler gauges and such small values. Here's your options....

Trust the conversion will work ok, calculate which shims you need using the chart and get the rear cylinder buttoned up, before moving on to the front. OR

Assemble the rear cylinder, timed correctly and re measure both cylinder valves using metric feeler gauges.

If you go with the first option I cant tell you which new shims you need because I don't know what shims were in there. The chart on the second page of this thread shows you how to calculate. Basically all your valves are tight so you need to go down in shim sizes. That makes for a bigger gap. If in doubt let us know what shim size corresponds to each of the above measurements.

Don't be disheartened. You'll get there.
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