Valve Clearance on Honda em7000is

Question

I have 40 hours and 3 years on my em7000is gen. Decided to finally service it. Got questions about valve clearance. The Service manual says to "line up the horizontal line on the rotor with the rib on the fan cover"..........done. This is supposed to be TDC. Now there is supposed to be some clearance between the rocker arm and the valve. I had NONE!

Manual specifies .15 and .20 mm for IN and EX. I do not know which valve is which so I decided to set both to .18mm. In order to get .18 mm I had to turn the rocker arm pivot for each valve about 2-3 full revolutions!!!!

I have not started the gen yet. Am charging battery as I write this. Am curious to know if having to make such a radical adjustment is expected / unusual / typical.....or have I done something wrong? I am not a real mechanic....just sort of a general handyman.

Thanks for any advice

nevadanick · Answer

Try again and turn the crank another turn. The crank turns two two revolutions to the cams single revolution.

mchero · Answer

You need to identify the valves and adjust accordingly.

nevadanick · Answer

Also from experiance if they needed adjusted that much they would need to be replaced. Other than a couple motorcyles that Honda builds, the valves rarely need adjustment.

mchero · Answer

nevadanick wrote:Also from experiance if they needed adjusted that much they would need to be replaced. Other than a couple motorcyles that Honda builds, the valves rarely need adjustment.X2

grandpaswagon · Answer

X3 - I have 25 year old Hondas that have NEVER had valves adjusted. 40 hours use? Forget it. Use good oil and gas (no ethanol if possible) and let it run.

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Valve Clearance on Honda em7000is

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