Engine temp / exhaust wrap HELP?

[Trigger]

You old boys worry too much. All my air heads are running hot at the moment, it is called the weather 

[Nurse Julie]

Both my fours run F hot and both run on rich side. Burnt my wrist on one of the downpipes of my 400 last week and it came out in a massive blister Ouch. Shame we haven't got a Nurse on here.... Could have done with a little sympathy

Peter.

Unfortunately I don't do Telemedicine Peter so cant see your bister but I do sympathy.....mainly because I have burnt my arm on down pipes in the past and it bloody hurts. Never mind, I'm sure you have another arm so you'll be just fine.(keep it covered and dry until blister dries up  )

[Nurse Julie]

Oh, and going back to the original thread my  CB400/4 runs that hot, the engine almost glows red !!!

[paul G]

Still waiting for temp gun but this is how hot it gets...

Rocker cover, head fins, points cover, stator cover all are untouchable! I mean even if I was to touch them for a fraction of a second I would leave my skin on them!
This is after a 20 minute run light to moderate traffic uk!

Checked my cam and it may have been one tooth out, this has been adjusted l, valve clearances re done, static timing bang on, 40 idle 115 mains needle on 3rd notch!

If you are going to use a thermal imaging camera make sure you have the emissivity set correctly or the readings will be way out.

[Wenman]

It's not thermal imaging just a temperature IR gun. Point it with the laser at parts of the engine and it gives a temp!

[Seabeowner]

I have a 500 and a 550 going at present. The 550 has only been for an MOT and I am waiting for the reg docs (import). When I went for the MOT I feel it was running much hotter than my 500.
Anyway point is, I was given one of those IR point and shoot guns but never used it on the bikes. Don't have 100% confidence in their accuracy and believe they can give false readings on reflective surfaces, but will give it a go tomorrow on the 500 and then the 550 when I get a number.

[matthewmosse]

I have one of those ir guns bought against the day I get the bikes I care enough to check get back up and running. On my cb500 and the tiddler ca125 and cb250 - all aircooled sohc Hondas I always regarded the engine getting hot to the point it smelt hot and you could feel the heat off the engine on your legs as a problem needing resolving. My cb500 covered somewhere past 180,000 miles of sidecar tugging abuse over a fair few years in all weather with her original engine, with a slightly weepy head gaskett the previous owner pointed out really needed doing. In all that time it only got really hot a few times, and each time I pulled over and let her cool off, cause was pretty always the same, stuck in stop start traffic on a hot day for a long time, unable to filter due to the chair. Getting hot to that point seemed to use fuel and oil quite badly. Only other times I can recall a sohc of mine getting that hot and I ignored it, kept going I had a con rod jurnal size up completely. That said I do live somewhere where traffic jams are rare so could always afford to keep moving at a decent pace so hot engines not genrally a problem.

[Seabeowner]

Ok, traffic round here as normal..awful. But after about 15 miles these are my readings with the IR gun.

                       Between fins on head at front between 2/3   110 deg C
Front top left head fins 95                                 Front top right head fins  90
Back top left head fins  90                                 Back to right head fins  90
Front left crankcases just below block  70         Front right crankcases just below block  76
Back left crankcases just below block    74        Back left crankcases just below block  82

Have to aim at the less shiny bits. Measurements taken on shiny bits pretty useless (downpipes etc)

As said earlier I think my 550F runs hotter.