What is the bulb type for the 400/4 pilot lights i.e. oil pressure, high beam et

[McCabe-Thiele (Ted)]

The bulbs in the Pilot Light Unit are not like ordinary car bulbs - is there a type designation so I can get replacements or even better is there an LED unit that fits & is suitable?

Any links much appreciated please.

[TrickyMicky]

They are 233 bulbs.  You can get led replacements, but make sure you get coloured bulbs, white led's behind coloured lenses give out a distorted coloured light. Hve a look at the website classiccarleds.

[McCabe-Thiele (Ted)]

They are 233 bulbs.  You can get led replacements, but make sure you get coloured bulbs, white led's behind coloured lenses give out a distorted coloured light. Hve a look at the website classiccarleds.

Thanks Mick that's just what I was after.

Ted

[robvangulik]

In my opinion it has no real use to replace those lamps with LED's to lighten the electrical load, none of them light for any length of time!
When your oil lamp lights for any length of time while riding you clearly have other problems than the state of the battery or alternator, neutral lights only while stopped, signal lights are only used occasionally, and only light 50% of the time, and the high beam  won't be used for long until one of the other road users complains about getting a headache from your eye splitting headlamp

[McCabe-Thiele (Ted)]

In my opinion it has no real use to replace those lamps with LED's to lighten the electrical load, none of them light for any length of time!
When your oil lamp lights for any length of time while riding you clearly have other problems than the state of the battery or alternator, neutral lights only while stopped, signal lights are only used occasionally, and only light 50% of the time, and the high beam  won't be used for long until one of the other road users complains about getting a headache from your eye splitting headlamp

You raise some good points I might stick with Tungsten. My Jeep has 7  interior lamps that illuminate when you open a door if the engine is not running they stay on for almost 5 minutes I've put LED bulbs to cut down the load.

[cliff7]

My book says 3.4w bulbs for warning lights and speedo illumination. I was a bit nervous of putting 233 (4w) bulbs in, in case it melted something so I put in 643 (2.2w)  which are a bit dim. Are 233,s ok for speedo and tacho as well as they are a lot easier to get?

[TrickyMicky]

I replaced my speedo/tacho bulbs with green 233 LED's, no heat problem, less current, and really illuminate the green clocks superbly. If you look on one of my previous posts re. headlamp bulbs, you can see the illuminated clocks.

[SeanFD]

I found 3.4v bulbs here.

https://www.ebay.co.uk/itm/402522464400?ViewItem=&item=402522464400

Came quickly but haven’t tested them yet.

[Bryanj]

You may find the glass "bulb" is too tall and melts the plastic, Honda used short, round topped type

[paul G]

I found 3.4v bulbs here.

https://www.ebay.co.uk/itm/402522464400?ViewItem=&item=402522464400

Came quickly but haven’t tested them yet.

3.4V W

[SeanFD]

Oops!

[paul G]

Oops!

I bet those 3.4v bulbs were very very bright for about a nano second 

[Trigger]

I found 3.4v bulbs here.

https://www.ebay.co.uk/itm/402522464400?ViewItem=&item=402522464400

Came quickly but haven’t tested them yet.

You may find that the glass is too big a dia to fit. Let us know 

[SeanFD]

Good news on both fronts.

The bulbs stayed lit, for 30s at least  and they fitted into the speedo on my 450; so I guess they’ll fit into others as well.