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3rd August 2016, 12:24 PM
#1
RB30 GQ limiter
Hey guys, suddenly my gq seems to be hitting a limit around 4500rpm. Pretty sure it used to be higher than this. Anyone know what the stock limit is?
I'm guess the springs on the rotor button have worn and that's why it's coming down. Rotor button is only 2 years old. Anyone know if I can get replacement springs or fix these ones?
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3rd August 2016 12:24 PM
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3rd August 2016, 01:07 PM
#2
Patrol God
Are you able to borrow another rotor button to rule that out?
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3rd August 2016, 01:46 PM
#3
Nah, but I can probably remove the springs and find out. Definitely feels like limiter, pulls hard until then.
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3rd August 2016, 04:39 PM
#4
Patrol God
Could it be starving of fuel
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3rd August 2016, 05:18 PM
#5
Honestly, I don't think so. Filter is new, secondary's are working etc. It does it in every gear, including neutral, which makes me think limiter. If it was starving of fuel, I'd think it'd be more noticeable with more load/higher gears.
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3rd August 2016, 05:27 PM
#6
Patrol God
I had a quick eBay look and it appears the rotor buttons are only around $20? Cheap enough to try and if it's not the problem then I guess you have a spare.
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3rd August 2016, 05:28 PM
#7
Patrol God
Also I've heard that those carbys have a small mesh filter that can be over looked
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3rd August 2016, 08:50 PM
#8
Legendary
Originally Posted by
taslucas
Also I've heard that those carbys have a small mesh filter that can be over looked
>>>tappin from tassie
Yes, that's gauze filter at the fuel entry to the carby float chamber from outside.
In mine, it always looked clean, but mine is dual fuel and doesn't run on petrol much.
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3rd August 2016, 08:52 PM
#9
Legendary
Originally Posted by
Throbbinhood
Hey guys, suddenly my gq seems to be hitting a limit around 4500rpm. Pretty sure it used to be higher than this. Anyone know what the stock limit is?
I'm guess the springs on the rotor button have worn and that's why it's coming down. Rotor button is only 2 years old. Anyone know if I can get replacement springs or fix these ones?
I doubt it's the rotor button.
Is the above rev limit same with no load revving?
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4th August 2016, 12:18 PM
#10
Yep, same in neutral @dom14
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