stripped pilot jet head - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 6 (permalink) Old 06-17-2017, 07:38 PM Thread Starter
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stripped pilot jet head

Yup Im screwed. Accidentally messed up the head of the pilot jet and cant get it unscrewed from the carb....anyone have any suggestions on how i could remove this?

'07 T100
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post #2 of 6 (permalink) Old 06-17-2017, 09:28 PM
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If there is any slot left at all you could file/shape a screwdriver to fit a new, unmolested jet perfectly and tap it with a small hammer while trying to twist it out. If that doesn't work try to sharpen the screwdriver a little by filing the trailing edge on both sides so you can drive it into the brass to get a better bite. It would be easy to ruin the carb so if your not confident in your ability to do this sort of thing take it to a machinist or someone you have confidence in. Why are you changing the jet?
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post #3 of 6 (permalink) Old 06-18-2017, 09:10 AM
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That is going to be difficult to work on with the carb still on the bike. One simple idea for you to try before digging in to far.
If just the head of the adjusting screw is messed up -
Option 1. Take a electrical butt connector [ the plastic crimp connectors that you use to connect to wires together ]. Heat it up with a heat gun until soft and push it quickly as hard as possible up and over the messed up pilot screw head. Let cool and see if that will let you turn it out.
If that does not work pull the carbs.
Option 2. Carefully drilling a very small hole right in the center of the head with a left hand drill bit. That left hand drill bit might be just enough torque to grab and let the screw back out.
If that does not work.
Option 3. Continue with the small hole drilling - That will give you more options to work with. Since there is little tension on the screw it will not take to much to get it out. With the small 1/16" hole 1/4" deep you should be able to use a small easy out to get enough bite to screw the adjusting screw out. Those screw extractor bits that you see at Home Depot could well do the same thing after you have the small hole to work with.

Hope those give you some ideas.
Good luck and take your time. You'll get it.

“Its all about motorbikes. Always has been, always will be”

Neil in AZ
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post #4 of 6 (permalink) Old 06-18-2017, 12:59 PM Thread Starter
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I did the second option y ou suggest and drilled it out just alittle. I was able to jam a #2 allen key in there and back it out with pliers. Thank you guys for the replys!
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post #5 of 6 (permalink) Old 06-18-2017, 01:00 PM Thread Starter
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I was in the process of cleaning out the carbs
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post #6 of 6 (permalink) Old 06-18-2017, 09:27 PM
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Curiosity has gotten the best of me...Which are you talking about--the pilot jet or the pilot adjustment screw???

Larry
2003 T-100 (790cc), NARK, NH Togas, 8100 rpm rev limiter, 158 main jets, 42 pilot jets (less than 1 turn out on pilot screws), stock needles--no shims. 13 A/F ratio from 1100 rpm to 4000 rpm; 12 A/F ratio from 4000 rpm to 6000 rpm; 13 A/F from 6000 rpm to 8100 rpm.:D
2007 Tiger 1050--White:D--SW-Motech crashbars, Skidmarx rear hugger/chain guard, Calsci +7 windscreen.
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