Honda-SOHC

"According to the Denso site the plugs you need are Denso-X22ES-U   "

Honda contemporary manual agrees with this as alternative to NGK D7EA Dave.

Denso 24 = NGK 8 heat range.  With Denso 27 = NGK 9.

Gosh those are a blast from the past, remember them well.

Cheers

Dennis

Having a clear out - any good to anyone. If so, message me with your address and I'll post it on.
Also got 1968 Trident article but cover has but missing  Shame to bin them
Phil

Sent from my moto g(50) using Tapatalk

Topic debated before, assembly of front brake caliper and the lubricant to use in this assembly.

From 1970 CB 750 Honda workshop manual;- Verbatim  "Note : Use silicon sealing grease (temperature range of -67~ 392 F (-55 ~ 200C). Do not use molybdenum grease known as brake grease. "     

This accompanying a schematic of caliper showing the application point as both recess that accomodate active and fixed pads.

Also from Honda workshop manual 1978 CB 750 (last of SOHC bikes, with illustration of the K7 caliper in arrangement parallel to all the previous 4 cylinder motorcycle  calipers;- verbatim "Install a new piston seal. Coat the piston with silicon grease and install it. Apply silicon grease to the brake pad outer circumference and install."

This, in my appreciation of it, is that Honda direct the use of this grease only in assembly of the caliper.

Anecdotal view, I've  been using silicone grease in this way for some time. Part of this is that it appears to be the only common one I can use in system with mineral oil, or conventional dot fluid or silicone based fluid.

Interestingly, I dont get brake squeal in any system when using this method. It seems to offer the most competent piston return over significant period of use, being all but impervious to water ingress when exposed to poor working conditions too.

Both cycle disc (working on two four and six piston  calipers) that have very concise demands in preventing drag by piston contraction when releaesd, also cars & bikes when placed on mot rollers to test, these having notably extremely low drag before brake application.

Interesting comments guys and agree with all said. A tv programme came on the night before I went away to pick up vehicle and it was a feature regarding cost comparisons from a survey/tests carried out by the RAC. Results were an EV charged from home on average was around 7p per mile, a petrol/diesel was 17p per mile and an EV charged with fast/rapid public chargers 22p per mile. I agree it’s early days still with alternative fuel options and not convinced it’s going to be electric but we may not be around when the new fuel becomes the norm, so for the moment I’m happy to give the electric a go. We’ve got the diesel burner as well in the form of a Trafic crew van and that is what we take on the long runs off the island because we need the carrying capacity. For instance today we have done about 6 miles in the car and that will be similar tomorrow. Alas don’t panick guys I haven’t lost enough marbles to go out and buy an e motorcycle! 😂😂😂

   In your situation it makes perfect sense to get one and I would think it should do at least 10 to 15 years should you choose to
   keep lt.