Timing Marks Bonneville T120

Karenh · Jun 4, 2019

I’m about to split the crankcase on my bonnie t120. Instinct is telling me to mark the valve timing points before stripping down, also Haynes manual saying so but a friend who’s helpings me strip and rebuild says not to worry about it as we’ll time it up after. What’s your thoughts?

freck · Jun 4, 2019

I’d always mark it up before a strip down, just to be on the safe side

darkman · Jun 4, 2019

Here are marks for T120, your wheels will have the same marks on them so no need to mark.

Tricky-Dicky · Jun 5, 2019

As said dont worry...its all pretty simple to time up, marking wont help much anyway as they only line up every 90 odd revolutions anyway.... they only thing to note is when you pull the cam wheels and find they have three key ways.

Karenh · Jun 5, 2019

Thanks for the reply’s guys

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Timing Marks Bonneville T120

Karenh Well-Known Member

freck Elite Member

darkman Crème de la Crème

Tricky-Dicky Crème de la Crème

Karenh Well-Known Member

Triumph T140v Timing Marks.

Timing Marks On Speed Four Won't Line Up

1967 Mountain Cub – Timing Pinion Dots On Pinion Gear

1993 Daytona 900 Timing

1981 Tr7t Ignition Timing Help

Share This Page