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151 Posts
I'm either stupid or blind...or both.
My issue is that the throttle tube currently twists/travels less than a quarter of the way around and, as recently as last Friday (last time I rode it), I'm sure it went further than that.
What changed?
A friend binned my bike last Friday resulting in some surprisingly minor damage (although he ended up with a broken ankle, serious bruises, and a helmet that needs replacing). I did a quick safety check on the bike and was able to ride it home without issue.
One bit of damage was to the front brake lever and bar-end mirrors. Decided this would be a good time to swap the OEM grips with Biltwell Thrusters which I cut the ends off of.
I remove the bashed up bar-end mirrors, front brake lever and old grips.
Put a bit of soapy water inside the new throttle grip and twist it on clockwise over the throttle tube, in the direction of closing the throttle, about 30 seconds of firm twisting.
Put on the new front brake lever.
Put on the new bar-end mirror.
Check the travel of the mirrors, brake, and throttle.
Symptoms:
I notice the throttle comes to a hard stop at less than a 1/4 turn with an audible knock in the throttle body area.
The throttle tube isn't touching the bar-end.
The tube isn't sticking or difficult to twist.
I look in the throttle tube cam area and throttle body. The cam stops and rests appropriately in the closed position (throttle off) and doesn't appear to be snagging. Nothing looks out of place to me, but I've also not stuck my nose in them before.
I haven't started the bike after swapping these parts to hear if the throttle position is altered and impacts rev range or idle as my exhaust slip on was trashed and its replacement is in transit.
Anybody have any ideas? Something has to be amiss (how could changing the grips, mirrors, or brake lever significantly alter the travel of the throttle tube) or maybe I'm just nuts and it was always this way? How far can you twist your throttle?
My issue is that the throttle tube currently twists/travels less than a quarter of the way around and, as recently as last Friday (last time I rode it), I'm sure it went further than that.
What changed?
A friend binned my bike last Friday resulting in some surprisingly minor damage (although he ended up with a broken ankle, serious bruises, and a helmet that needs replacing). I did a quick safety check on the bike and was able to ride it home without issue.
One bit of damage was to the front brake lever and bar-end mirrors. Decided this would be a good time to swap the OEM grips with Biltwell Thrusters which I cut the ends off of.
I remove the bashed up bar-end mirrors, front brake lever and old grips.
Put a bit of soapy water inside the new throttle grip and twist it on clockwise over the throttle tube, in the direction of closing the throttle, about 30 seconds of firm twisting.
Put on the new front brake lever.
Put on the new bar-end mirror.
Check the travel of the mirrors, brake, and throttle.
Symptoms:
I notice the throttle comes to a hard stop at less than a 1/4 turn with an audible knock in the throttle body area.
The throttle tube isn't touching the bar-end.
The tube isn't sticking or difficult to twist.
I look in the throttle tube cam area and throttle body. The cam stops and rests appropriately in the closed position (throttle off) and doesn't appear to be snagging. Nothing looks out of place to me, but I've also not stuck my nose in them before.
I haven't started the bike after swapping these parts to hear if the throttle position is altered and impacts rev range or idle as my exhaust slip on was trashed and its replacement is in transit.
Anybody have any ideas? Something has to be amiss (how could changing the grips, mirrors, or brake lever significantly alter the travel of the throttle tube) or maybe I'm just nuts and it was always this way? How far can you twist your throttle?