Can a Robin overheat?

[robin bird]

I just ordered a kit with the Robin chaindrive , from staton. I wanted to have 1 quite rider,high mileage and little vibration--plan on a real long trip next June.

 

[Old Bob]

Getting back to the topic of the thread...


Most of the mini four strokes give warning they are running too hot. Mostly you'll notice a loss of power, burning oil when they don't normally burn oil, sometimes pinging.
Most people will instinctively back off and let the engine cool,its fairly intuitive, if you can't recognize the signs you probably can't balance a bike...

 

[motorbikemike45]

Thanks Bob, good advice. Mine have been close a few times, especially the friction drive bike. I think some of us have a good feel of our MBs, some others do not, but are learning from guys like you. I have developed the feel of how an engine is doing. Now I need a tach. The new GEBE drive bike has hit 35mph down a hill, the Robin was screaming a happy song, but no stock 4 stroke engine will tolerate that sort of extreme rpm for long.

 

[Old Bob]

Honda has no issue with rpm, I'm sure the Robin wouldn't either, buts is a good to stay within manufacturers recommendations.
The Honda will self limit rpm with its small carb and ports, no load it won't rev over 7800 rpm or so. I forgot what I tested a EHO 35 to, about the same from what I recall.

Sendec makes a good tach.

http://www.sendec.com/

http://www.tinytach.com/tinytach/commercial.php