Skyliner70cc
Active Member
- Local time
- 5:45 AM
- Joined
- Nov 17, 2007
- Messages
- 1,338
I have a list of things to do on a new build and occasionally I don't follow my own tips. I got a new Speed carb installed on one of my bikes recently and during a ride, the throttle got stuck at full throttle. My engine is pretty powerful but handling the emergency was a no brainer and I got back safely.
So, what caused the stuck throttle? The main carb jet assembly unscrewed itself from the carb causing a lateral pressure on the needle which prevented it from returning to idle position. I didn't follow my own advice and loctited the carb main jet to prevent this issue from occuring. This is only the 2nd time that this has happened in the past 6 years and I wanted to share it with you so you could consider doing this to your bike too.
Please practice emergency procedures on your bike so when you have an issue, you can react instinctively and not put yourself in unnessary danger.
1. Emergency panic stopping.
2. What to do with a runaway engine
a. hit kill switch and if doesn't work
b. with one hand, pull plug wire off plug and if you are unable to do that
c. move choke lever into full choke position
d. if that doesn't work, while maintaining control of bike, disengage clutch and stop and then pull CDI/plug wiring
3. practice reaction to sudden stoppage of rear wheel....amazing how many folks don't know how to handle bike when tires are skidding.
etc...etc..
So, what caused the stuck throttle? The main carb jet assembly unscrewed itself from the carb causing a lateral pressure on the needle which prevented it from returning to idle position. I didn't follow my own advice and loctited the carb main jet to prevent this issue from occuring. This is only the 2nd time that this has happened in the past 6 years and I wanted to share it with you so you could consider doing this to your bike too.
Please practice emergency procedures on your bike so when you have an issue, you can react instinctively and not put yourself in unnessary danger.
1. Emergency panic stopping.
2. What to do with a runaway engine
a. hit kill switch and if doesn't work
b. with one hand, pull plug wire off plug and if you are unable to do that
c. move choke lever into full choke position
d. if that doesn't work, while maintaining control of bike, disengage clutch and stop and then pull CDI/plug wiring
3. practice reaction to sudden stoppage of rear wheel....amazing how many folks don't know how to handle bike when tires are skidding.
etc...etc..