July 17th, 2014, 04:20 PM | #1 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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valve clearance
So I finally got around to checking the valve clearance on the commuter and it looks like all of the intake valves are plenty clear, the exhausts are much tighter.
My feeler guages just wont slide a stacked pair of feelers worth a crap, the thin on top just folds and flops, the .008 gauge goes in pretty smoothly (minimal force) on all the exhaust valves, the .009 goes in pretty smoothly (some drag but not excessive) on three of the four. The 4th valve the .009 goes in, but it takes a pretty decent push. Bike as 11K on it and I put around 300 to 350 miles a week on her commuting. Do I want to take the whole damn top end off to change one shim? Would you? Would you run it another 4-5K and check it again? What say you?
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July 17th, 2014, 04:35 PM | #2 |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
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No idea of the SAE numbers you gave but i have a feeling all your valves are tight...out of spec...
edit: googled, .008 = .203 mm and .009 = .228 exhaust should be between .22-29 https://www.ninjette.org/forums/showthread.php?t=73240
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July 17th, 2014, 04:55 PM | #3 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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min spec is .0087 exhaust and .0059 intake so that are either in spec or very very close
like I said I can get a .009 in there on 3 with appropriate drag, the other take a bit of effort with .009 but it fits and slides when in place, .008 on that one valve feels like .009 on the other three. i am confident in the inspection, the question is do I want to pull the whole top end apart for the one shim that is at or very close to the minimum
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July 17th, 2014, 05:00 PM | #4 |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
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I'd replace them all and get them in spec. Really not much more work involved to finish the adjustment.
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HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
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July 17th, 2014, 06:18 PM | #5 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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Just checked them again since its all still apart, going a lot of diff things including swapping clutch cover and bunch of bs - it is definitely somewhere between .008 and .009 as the .009 exhibits the classic pop and slide and the .008 is really pretty free.
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July 17th, 2014, 07:06 PM | #6 |
Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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You're probably ok...
Stepped (go no-go) feeler gauges are well worth the $10 you'll spend for a"lifetime" tool. |
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July 17th, 2014, 08:09 PM | #7 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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yeah I have a pretty nice set of feelers but just recently found out about the stepped units. probably going to pick some up. think i may let this slide for another 5k or so. i will make up my mind by the time I get the rest of the bike back together. anyone else?
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July 17th, 2014, 08:33 PM | #8 |
Inline 4!!!
Name: Danny
Location: MA
Join Date: May 2014 Motorcycle(s): 2008 CBR600rr, 1987 KLR 250 Posts: A lot.
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Where can I buy the proper gauges?
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July 18th, 2014, 06:19 AM | #9 |
Fighting Texas Aggie '05
Name: Neil
Location: Hutto, TX
Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.
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^^ I found a couple sets on Amazon, going to pick one out myself
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Keep it rubber side down and enjoy the ride Get healthy - Get Fit - Change Your Life Click Here Or PM Me To Find More - Advocare |
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