Exhausts and Engine » Valve Clearance Checks 1250rs TDC?

2021 RS 1250 Valve Clearance check time.
just wondering if anyone has done their valve clearance checks on a 1250 without specialized tools? (83302327790 8mm TDC Tool )
Appears if i can find TDC reliably i should be able to check to see if the valve clearnce is within spec.

Let us know how you get on.

Tell us if clearances are ok or needed adjustment.

Has anyone ever had valve clearance adjusted?













From one who’s never checked.

I have never had the valves adjusted on my R1200RS. But I have spent a lot of money having a dealer check valve lash. I have decided not to check the valves anymore. My thught is that valve lash on the WC boxers is very stable as long as you don't bounce the engine off of the rev-limiter.

Thanks for the feedback, after a little more research finding TDC for each cylinder was easy enough using the 8mm slot on the alternator. I was able to measure all valve clearances which were all within limits.

Not sure how accurate the results are without the ability to check cam aligment and not having a cam chain tensioner tool in place. So I'm on the hunt for some tools and finding everywhere i call they are on backorder, with no known avaliablity date.

If anyone knows where these tools are avaliable please let me know.

83302327790 Alignment Pin
83302467268 Cam Jig for each side
83300444292 Chain Tensioner
83300444282 Tensioner Sleeve

Everything else with the 12k/20kms service checks went well as expected, was surprised at how worn the center electrode on the plugs were, never saw that on the 1200. if you have a 1250 its worth a quick look. The splines in the finial drive were dry and needed some moly grease.

What mileage are you at? I decided that seeing as how the engine spends most of its time at 3 to 5000 rpm and is treated carefully especially when cold that I would skip the check at 12000miles on my 1200 R/S and do it this winter when I expect to see 20,000 miles. Many reports seem to state that valve lash remains in spec indefinitely but I guess if your the guy calculating intervals then you need to take every conceivable customers style of riding and sympathy shown towards a cold engine and lower grades of fuel used etc etc.

I read with interest a post by a police bike mechanic who stated something like 80,000 miles and no adjustment required, not sure what a dealer would charge to just check at least an hour and then additional for adjustment?

On my 2016 1200rs I checked the valve clearance every 20k kms and eventually sold the bike around 85k kms. It was always within tolerance.
This 2021 1250 rs has 20k kms and test within limits but very close to being out of limits already on a couple readings. Both bikes were rode the same and both got the 91 fuel with no ethanol.

I went through the same thing went I went looking for these items, not available at BMW. I did manage to get the Cam Jig.

Through the BMWMOA forum, came across a member (BoxFlyer) who makes some of these these items. He has a video comparing his "DIY" tools vs the BMW tools - https://www.youtube.com/watch?v=JzzHMZuqCWQ

real good info in that video, thanks Unkgd.

https://www.emiauto.eu/en/

Update ... emiauto has tools in stock if your looking ... EUR

Why is there any need for any special tools at all to just check valve clearance? Surely its good enough to check the gap when the cam lobe is opposite to the follower as it has been on any engine that I have worked on since owning a BSA 250. If the gears were marked with tippex or nail varnish as to the teeth alignment and the chain cable tied to the sprocket it would go back in the same position. Yes, the fancy bits are needed on a cam being changed but just checking gaps should only need the gauges.

Absolutely agree. The key thing, as you said, is that the follower is not on the cam lobe.

How time flies .......

Has anyone ever had the valves adjusted?

Today I brought my 2015 bike home from it's first valve check.

No adjustment needed.

45,300 miles.

Zitat von Boxerboy55 im Beitrag #12

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Has anyone ever had the valves adjusted?

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I measured my valves @ 347 miles and all in spec . My friend's 2023 GS was measured @ 600 miles and all in spec . I own all the BMW tools required to service / check cam timing . However none are needed to check clearance and if in spec just ride on . However most 1250 engines are all slightly out of timing and this is where the tools come into play . My 2023 RS and Friend GS are both nearly due for their 12,000 mile check . Its nice having a base lone on both engines from new .