Seized??

[Eddie Evans]

That section could well be included in the CRM run if requested along with a nice wide ford.
Yes I do run a fan but it is a small computer one.
I gave the bike a good pressure hosing before stripping it down but I noticed the rad fins were still solid with muck.
A correction the spark plug is a BR8EG not EV

I've now had the head and barrel off and all seems well, rebuilt it and had a run down test.
Guess I have been lucky or I have missed something else.

[fallenmikethebike]

That section could well be included in the CRM run if requested along with a nice wide ford.
Yes I do run a fan but it is a small computer one.
I gave the bike a good pressure hosing before stripping it down but I noticed the rad fins were still solid with muck.
A correction the spark plug is a BR8EG not EV

I've now had the head and barrel off and all seems well, rebuilt it and had a run down test.
Guess I have been lucky or I have missed something else.

Did it get hot enough to bring on high temp warning lamp?
Yes, i only run an 80mm computer fan [ continuous] and I've had no problems.
would you say that, that was the hardest the bike had worked since the previous rebuild?
Mike

[Eddie Evans]

No Mike it has worked harder before and after this incident without any problem.
I didn't notice the red light on but that doesn't mean that it wasn't on.
The temp light did come on on a long slow climb in the dark but the light also came on another CRM that was on the ride
I suspect that if I had let the engine idle all would have been well. The barrel would not have lost as much heat and contracted around the hot piston.

[fallenmikethebike]

No Mike it has worked harder before and after this incident without any problem.
I didn't notice the red light on but that doesn't mean that it wasn't on.
The temp light did come on on a long slow climb in the dark but the light also came on another CRM that was on the ride
I suspect that if I had let the engine idle all would have been well. The barrel would not have lost as much heat and contracted around the hot piston.

OK, yes that seems a fair analysis of the problem, which is why as you said , no damage was found.
This probably underscores the value of [water cooling ] which keeps the hot bits cold , but as important the cooler bits hot, thus evening out the engines overall temperature.
Thanks for flagging that up Eddie, as you say , perhaps the best course of action is let the engine run a while after a good soaking to allow the general temperature to be acquired again, before stopping the engine
Mike