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Thread: Valve Adjustment How-To?

  1. #1
    apriliaforum expert antarius's Avatar
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    Valve Adjustment How-To?

    Am I just blind or is there a Valve Adjustment How-To somewhere for these motors? I've done them on my (now sold) V4, so I don't suspect it'll be all that difficult on this motor but I need the How-To to properly show me the method for setting the timing after I pull the camshafts off, or avoid having to reset it in the first place. I have the service manuals and engine manual and I swear I can't find their valve adjustment procedure in there, or required tools, either.

    Help? Thanks!
    Current: '07 Aprilia Tuono Factory, '07 BMW R1200GS
    Past: '14 Aprilia Tuono V4, '17 KTM RC390, '07 KTM Superduke 990, '07 Husqvarna SM610

  2. #2
    apriliaforum newb
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    Hi

    I think this video can help you:
    https://youtu.be/yc2rog63YFU

    Not the “official” method but looks useable.

    Regards



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  3. #3
    apriliaforum expert Kennibear's Avatar
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    Still like this method as zip tying the chain and sprockets is quick and easy. The rear can probably be done the same if you put witness marks on both balancer gears.
    Like this info because there really is no Aprilia service in the Puget Sound area. I haven't tried Optimum Motosports yet.

    KB

    Sent from my E6833 using Tapatalk

  4. #4
    apriliaforum expert antarius's Avatar
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    Thanks for the info so far.

    I see a camshaft template tool on AF1, I assume this is used to put the camshafts in the same orientation as when you removed them to keep timing? I have yet to see any video or pictures of the rear balancer or how it's aligned, and the engine manual I have I either cant find the valve adjustment page or it doesn't exist.
    Current: '07 Aprilia Tuono Factory, '07 BMW R1200GS
    Past: '14 Aprilia Tuono V4, '17 KTM RC390, '07 KTM Superduke 990, '07 Husqvarna SM610

  5. #5
    apriliaforum expert Kennibear's Avatar
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    If you clean the gears with solvent and paint witness marks on them it should not pose a problem.

    KB

    Sent from my E6833 using Tapatalk

  6. #6
    apriliaforum expert antarius's Avatar
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    So basically what I'm gathering is it's pretty much like any other shim under bucket overhead camshaft valve adjustment? Basically, make sure the damn chain doesn't fall off the sprockets, make sure you put the camshafts back in place exactly as they were when you removed them, and adjust as necessary?

    What's all the fuss about the balancing gear thingy?
    Current: '07 Aprilia Tuono Factory, '07 BMW R1200GS
    Past: '14 Aprilia Tuono V4, '17 KTM RC390, '07 KTM Superduke 990, '07 Husqvarna SM610

  7. #7
    apriliaforum expert jess67's Avatar
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    Mark across the chain, cam gear and cam before disassembly. Do one head at a time, complete before moving to the other one. Some rags down the chain galleys to stop parts falling into the bottom end. The balance shaft has a keyed shaft so you cant get it wrong. V2 Rotax rarely need to be adjusted, they are bullet proof from the factory(but you must check them).

  8. #8
    apriliaforum expert antarius's Avatar
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    Got it. Thanks guys. How do you take the balancer off? Just loosen that large nut and then the subsequent gear which is attached to the intake camgear?
    Last edited by antarius; 06-14-2019 at 04:14 AM.
    Current: '07 Aprilia Tuono Factory, '07 BMW R1200GS
    Past: '14 Aprilia Tuono V4, '17 KTM RC390, '07 KTM Superduke 990, '07 Husqvarna SM610

  9. #9
    apriliaforum expert Kennibear's Avatar
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    If I saw the video correctly the balancer is a part of the can top block and should just come up and off with it.
    I could be wrong though....
    KB

    Sent from my E6833 using Tapatalk

  10. #10
    apriliaforum newb
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    I just checked my valves according to that video, and found them all in spec at 26K. Jess67 said they rarely need adjustment, which is what I have found, echoed by my local dealer. This is check number two with no need to adjust.

  11. #11
    apriliaforum expert FZ1JOE's Avatar
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    70 plus thousand miles my bike never needed the valves adjusted . I miss my Tuono

  12. #12
    apriliaforum expert antarius's Avatar
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    Lol right? At 70k miles on a V4 you'd have put in NEW valves. Haha
    Current: '07 Aprilia Tuono Factory, '07 BMW R1200GS
    Past: '14 Aprilia Tuono V4, '17 KTM RC390, '07 KTM Superduke 990, '07 Husqvarna SM610

  13. #13
    apriliaforum expert TeddyG's Avatar
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    See Amauris threads on his method- very clear info- I believe he has a camshaft template for sale as well. There's also good info on the Haynes Gen 1 manual. When I did mine the timing chain slipped off the crank and threw off the timing, so use caution. If you use the crank locking bolt you'll feel it slightly seat into the holes on the crank at TDC, and the engine will not rotate. At 19k mine needed the valves adjusted but the bike has been tracked by previous owners-
    Last edited by TeddyG; 06-15-2019 at 08:56 AM.

  14. #14
    apriliaforum expert antarius's Avatar
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    I can't seem to find amuaris thread.....
    Current: '07 Aprilia Tuono Factory, '07 BMW R1200GS
    Past: '14 Aprilia Tuono V4, '17 KTM RC390, '07 KTM Superduke 990, '07 Husqvarna SM610

  15. #15
    just another Aprilia fanatic amauri's Avatar
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    V990 valve adj proceedure:

    -start and complete the adj on one cyl at a time
    -after locking crank @TDC with locking pin tool, paint a line across both cam sprockets
    -no need to remove front cam sprockets, leave them bolted to both cams
    -must remove rear cam sprockets but no need to remove 22mm nut on rear balancer shaft
    -do remove the hydraulic tensioners
    -no need to zip tie or worry about cam chain dropping from sprockets, just re-assemble using your painted line on the sprockets
    Last edited by amauri; 06-15-2019 at 10:33 AM.
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