Power valve issue
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@thechompster it’s possible the the teeth on the cogs may have snapped it worth taking a look
@declan cogs are fine as just changed the chain so checked them both.
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Forced the valve open while engine running and goes like stink top end. Have noticed since I done that and tuned the ignition off and on and start engine it starts to move as it should for a few revs then stops moving again. I'm taking a guess it's the solenoid?
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Forced the valve open while engine running and goes like stink top end. Have noticed since I done that and tuned the ignition off and on and start engine it starts to move as it should for a few revs then stops moving again. I'm taking a guess it's the solenoid?
@thechompster It's a motor on these. So could be the brushes.
Are you sure the valve isn't just gunked up.
Would be worth dismantling the assembly and cleaning it thoroughly.
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@thechompster It's a motor on these. So could be the brushes.
Are you sure the valve isn't just gunked up.
Would be worth dismantling the assembly and cleaning it thoroughly.
@calum it could possibly be gunked up but would it not move when you turn the ignition on?
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@thechompster It's a motor on these. So could be the brushes.
Are you sure the valve isn't just gunked up.
Would be worth dismantling the assembly and cleaning it thoroughly.
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@calum do you have a link for how to remove power valve at all?
@thechompster No, just take the two powervalve end caps off. The offside powervalve housing has a bolt to keep the two pieces together, make sure you don't lose the locating dowels as they're prone to falling out. You'll want to lubricate it with WD40.
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@thechompster No, just take the two powervalve end caps off. The offside powervalve housing has a bolt to keep the two pieces together, make sure you don't lose the locating dowels as they're prone to falling out. You'll want to lubricate it with WD40.
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@calum ok thanks for the help. With give it a go.
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Took the exhaust off. A bit dirty in there but rotates easy enough. Goes through the cleaning process nice and easy so all I can do now is change the servo and hope it sorts it.
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Odd that it'll do the cleaning cycle fine but not run right.
I'd be more inclined to say faulty CDI more than anything. I guess these bikes are just starting to show their age.
@calum yeah I guess they are.apart from that it runs lovely. Will change the servo. If that doesn't do it just the cdi left I guess.
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A friend had a faulty servo, sometime during a ride where the PV was open, it would leave it open. Other times just seem erratic. I believe the gears in the servo was toast.
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A friend had a faulty servo, sometime during a ride where the PV was open, it would leave it open. Other times just seem erratic. I believe the gears in the servo was toast.
@jens-eskildsen ok thanks mate. Very helpfull
Will try another servo then and see what happens. -
@jens-eskildsen ok thanks mate. Very helpfull
Will try another servo then and see what happens.@thechompster just out of interest, what spark plug are you running??
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@thechompster just out of interest, what spark plug are you running??
@mitch_350z iridium spark plug
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@mitch_350z iridium spark plug
@thechompster does it have the resistor in it the 'r' in the spark plug type as this can cause issues with the operation of the valve
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@thechompster does it have the resistor in it the 'r' in the spark plug type as this can cause issues with the operation of the valve
@mitch_350z the one below. Br9eix.
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Me too, br9eix
