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Here is an interesting discussion regarding why more motorcycle engine designs don't use hydraulic valve adjusters: https://www.motorcycle.com/ask-mo-an...e-lifters.html
Richard - Current bikes: 2016 BMW R1200RS, 2018 16.6 kWh Zero S, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.
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Toyota has had solid lifters on all engines with which I am familiar. Especially the Prius NHW20 and 2000-ish 3.0L V6. Both specified 60,000 mile check intervals. At 60,000 miles on the Prius the dealer’s service writer wanted to do $1000 of useless door hinge greasing, engine oil power flush, transmission power flush, and coolant power flush. But insisted the valves never needed attention. Wasn’t in his iPad app.
My Ford 2.7L EcoBoost has solid lifters and no specified check interval.
My Yamaha FJR was checked at 45,000 miles (spec interval is 26,600) and found solidly in the middle of adjustment range. At 81,000 miles I’m hardly giving it a thought.
2016 Yamaha FJR1300A; 2016 Beta 430RS; 2007 BMW F800S; 2009 Husaberg FE450; 2016 Subaru Outback; 2018 F150; 2013 Tesla Model S 85; 1983 Porsche 928S; 9 cats
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Originally Posted by
N4HHE
Toyota has had solid lifters on all engines with which I am familiar. Especially the Prius NHW20 and 2000-ish 3.0L V6. Both specified 60,000 mile check intervals. At 60,000 miles on the Prius the dealer’s service writer wanted to do $1000 of useless door hinge greasing, engine oil power flush, transmission power flush, and coolant power flush. But insisted the valves never needed attention. Wasn’t in his iPad app.
My Ford 2.7L EcoBoost has solid lifters and no specified check interval.
My Yamaha FJR was checked at 45,000 miles (spec interval is 26,600) and found solidly in the middle of adjustment range. At 81,000 miles I’m hardly giving it a thought.
I checked the valve lash on my 2002 Yamaha FZ1 at 24K miles and found them all to be in spec. so I have no plans to look at them again. Plus, there is no way I would try to change the shims on the really tiny 5th intake valves. I could barely manage to get a feeler gauge into the valve area to check the lash.
Clearly, some vehicle manufacturers try to go out of their way to toss a little unnecessary after-sales profit to their dealer's service department. About five years ago Zero changed the design of their electric motors to make them more resistant to overheating, which they say has an "internal permanent magnet" design. Ever since then they have wanted their customers to bring their bikes back to their dealer every 8K miles to have the motor "commissioned", for which the dealer charges an hour of labor. Many Zero owners have ridden tens of thousands of miles without having their motors "commissioned" and their bikes still seem to keep rolling along.
Richard - Current bikes: 2016 BMW R1200RS, 2018 16.6 kWh Zero S, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.
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Originally Posted by
Richard230
I checked the valve lash on my 2002 Yamaha FZ1 at 24K miles and found them all to be in spec. so I have no plans to look at them again. Plus, there is no way I would try to change the shims on the really tiny 5th intake valves. I could barely manage to get a feeler gauge into the valve area to check the lash.
Dealer quoted $700 labor to check my FJR valves, plus extra if adjustment was needed. Independent checked for $300.
Coolant doesn’t have to be drained but does have to be lowered because a hose enters from above and through the the valve cover.
2016 Yamaha FJR1300A; 2016 Beta 430RS; 2007 BMW F800S; 2009 Husaberg FE450; 2016 Subaru Outback; 2018 F150; 2013 Tesla Model S 85; 1983 Porsche 928S; 9 cats
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F800Riders.org Supporter
"commissioned" ??? What does that mean in this context??
What do they do for an hour? ...
Blue 2009 F650GS - H-B crash bars, TT luggage rack, Pelican top case, BMW Vario Panniers & bash plate, 20mm handlebar risers, LED voltmeter, Sargent seat, MudSling, a few other trinkets ... I may be just about at the end of the farkle train
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Originally Posted by
jrwooden
"commissioned" ??? What does that mean in this context??
What do they do for an hour? ...
That is Zero's secret mystery description for checking the adjustment between the motor's controller and the sensors that control the pulses of the electric magnets that cause the output shaft to rotate on the brushless motor. This is done by placing the bike on a stand, hooking the controller to Zero's computer via the internet and spinning the motor while Zero's program checks for any deviation from the factory settings. If the adjustment is off it will impact both the efficiency and performance of the motor and the controller will be reset by Zero's inspection program. Sort of like checking the valve lash on a F800 engine. It might need adjustment some day, but almost never does. Meanwhile the franchised dealer's shop get a little extra business in the back room to keep them going and to compensate them for not having any valve clearances to check.
Richard - Current bikes: 2016 BMW R1200RS, 2018 16.6 kWh Zero S, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.
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