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Discussion Starter · #1 ·
hi , 2007gs, 47 k , last valve adjustment??, so today, following correct guidelines, set tdc , left bank spot on 15 in , 30 ex , right bank tight no gauges in , not even 15 in ex ???, looking for advice, should l reset , or is there a problem,thank you for your time anyone…
 

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Did you check/set TDC on compression or exhaust stroke?

After you checked the left side did you move to the right side without turning the motor over to find right side TDC on the compression stroke?
 

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Discussion Starter · #4 ·
Have read Haynes bible , must be done on compression stroke, 👍, so if my left bank is correct, why would right be so poorly adjusted, any ideas or just poor workmanship before, we have chatted before and thank again, 🤙😎
 

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Discussion Starter · #6 ·
Thank you , lm learning fast , hope the battle grounds are still well looked after , as you do for us novice owners of bmw boxers , always read your advice and replies you post , well done .
 

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Have read Haynes bible , must be done on compression stroke, 👍, so if my left bank is correct, why would right be so poorly adjusted, any ideas or just poor workmanship before, we have chatted before and thank again, 🤙😎
We don't know if the right side is out of adjustment. If the right side wasn't checked on the compression stroke it will appear out of adjustment when it may not be.
 

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Going to do a run though turning engine over slowly, have got , pin to place in back of engine do they help , using calibrated rod ..
I not certain what you are talking about with pins and calibration rods.

When I check the valves

1. Rear wheel off the ground
2. Put bike in 6th gear
3. Remove both primary sparkplugs R/L side
4. Remove left valve cover
5. Insert clean wooden chop stick into left spark plug hole and roll the rear wheel forward until TDC on the compression stroke is found. On the compression stroke the rockers should have a little movement if moved by hand. If there is no movement, you may be on the wrong stroke. Rotate the motor 180 degrees and check again.
6. Check/set intake/exhaust valves left side
7. Move to right side and repeat steps 4 thru 6
 

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Discussion Starter · #10 ·
Followed your advice, all done , sight inlet one , one exhaust, rock n roll , reassembling to do quick right then going to do throttle body syn with my mano , l use atf fluid , anything better l could use ??, cheers thank you again,ride safe 🤙😎
 

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After checking the TB sync on the first 4 or 5 of my GS's with no adjustment needed, I don't even bother doing it anymore.

Only way I'd check it now is if the bike was running really off idle.
 

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Confirming only the primary spark plugs have to be removed for the valve adjust?

Thx
In a word yes. The only reasons to remove the primary plugs is to find TDC and without them in you are not fighting the engines compression when trying to find TDC.
 
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