Question about 2008 Moto Guzzi V7 Special

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Valve maintenance What is the valve arrangement and maintenance interval

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Valves are actuated only recently at Moto Guzzi by an overhead camshaft. Shim under bucket design precludes consumer adjustment due to shim kits price/availability. But it can be done! Not sure what the interval is, usually needs it between 12k miles, and 20k miles. If you hear noticeable tapping that doesn't quiet after warmup, it is time to check clearances. Good Luck, and nice bike, by the way. TT

Posted on Feb 11, 2009

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My GPX used to run fine, now it back fires every now and then in little intervals usually at low speeds in bout second gear, no real patterns though! I have replaced the plugs and cleaned the air filter!...

Do a compression test, if one cylinder is low on compression you could have tight valve clearence, a bent valve or a burnt out valve any one of these will cause your motor to back fire now & then at low rev's

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Motor seems noisy at 15K miles. Should the valves be adjusted? What are the intervals between valve adjustments on this model?

Yes valve adjustment is a requirement. You need a good repair manual, unfortunately I do not have one for your model, but your local Triumph Dealership should be able to answer your question about the intervals. I thought it was only done when required, but I am not an expert on Triumphs.

Jan 17, 2010 | 2000 Triumph Sprint ST

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Need to know how the circular spring loaded gear goes where the lower part of the power valve is on the clutch side case?

Although your description isn't exactly the greatest, I assume you are referring to the power valve actuator. It fits into the side cover into a bearing near the waterpump. The gear on the oppposite end engages the end of the crankshaft when assembled. The actuator linkage engages into the slot near the middle of the gear assembly. Very difficult to explain but it takes just a few seconds to slip it into place. Nothing retains it during assembly, so be careful not to drop it.

Perhaps a visit to a site with an exploded view would help you - like Yamaha of Troys parts finder. It will provide you with an exploded view but possibly not the entire arrangement - this is what the manual is for.

A manual would show this arrangement. Google search "online manual YZ250"

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Ticking sound in engine

Have the valves adjusted at the proper interval. Sounds lilke a loose valve, nothing too serious. Just needs to be adjusted soon.

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1st valve adjust at 1000 miles, then every 15k is good...Good Luck to you friend....tim

Apr 27, 2009 | 2006 Yamaha Roadliner Midnight

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My valves are chattering when i start my bike


If you have recently serviced the bike, make sure that you have used the correct grade of motor oil.

Alternately, it is necessary to adjust the valve clearances at regular service intervals


Mar 15, 2009 | 2006 Yamaha YZF-R6

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