Triumphrat

mijo_no

I'm looking for the proper screwdriver to open and close the oil fill on a Bonneville. It looks like it takes a larger than normal size flat head screwdriver.

Forchetto

Post number 3 on the following thread shows a professional tool for undoing slotted caps:

http://www.triumphrat.net/twins-tech...iller-cap.html

A few other ideas:

http://www.triumphrat.net/twins-tech...plug-tool.html

http://www.triumphrat.net/twins-talk...iller-cap.html

http://www.triumphrat.net/twins-tech...ug-advice.html

A lot of people opt for replacement with an after-market oil cap that is either hexagonal or knurled and much easier to remove and replace:









Or even one that incorporates an oil temperature gauge:

mijo_no

Thank you Forchetto

Thruxton-Texas

A cheap spark-plug gapping tool (disc shaped, about the dia. of a 50cent piece) is the proper thickness to fit the slot tightly; just use the backside (thickest part) of it, and turn it with a pair of pliers or an adjustable wrench. They're available for about a buck at any auto supply, easy to carry in a tool roll, and don't bugger up the slot. ............James.

Wolfpack94

I go the big flat head screw driver with a rag. No damage so far.

ALLTRIUMPH

yeah, just use a rag, and you're good

mijo_no

I actually did use a gap tool but I'll add a little rag the next time to protect the part. Thanks to all.