Honda-SOHC

HGV driver for Asda Ted, we picked up out own loads out of Salmesbury.

Have a watch of this to explain how it works.

https://www.youtube.com/watch?v=anjDQJtWFc8

I'd try and run a tap down them first Nigel, if possible start at the bottom eg from the combustion chamber. I've salvaged a couple with cross threads, it depends on how badly the threads are chewed up and how far down they got the plug before they realised. Starting at the bottom means it's centred as it reaches the damaged threads, otherwise you may make the damage worse.

A Time-Sert is best for heads, helicoils are ok and I've done quite a few over the years with great success but there is always a chance the insert will come out with the plug at some point. If going Helicoil way insert it with thread lock as security.

https://eshop.wurth.co.uk/Product-categories/Thread-repair-system-Time-Sert/3108600601.cyid/3108.cgid/en/GB/GBP/

Any small engineering place should be able to repair the head.

I have titanium hero blobs now on my CB1300, they spark if you ground them. Looks really cool at night. So they tell me.

Have I got your address Dave?

If not PM it and I'll pop them in the post.

Get the 2 that are on Ebay in the UK Dave.

Don't forget to change the orings for Viton ones as well.

Also here Dave.

https://www.mcw-onderdelen.nl/nl_NL/p/Sproeier-98-%2C-cb550f-cb350k4%09%09oem%09%0999202-6010980/8947