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You want to be getting a minimum of 60 degrees, i personally would say a minimum of 65 but there is some variance in the quality and accuracy of the reading your getting from the thermostat.

Try putting some gaffer tape around the LHS of the radiator, the bit the hoses connect to and see if that improves things.
 

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2 Strokes And I'm Happy
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mine runs a constant 58 degrees. no need to be any higher than that, certainly doesnt need to be a minimum of 65 degrees. between 55 and 60 is what your looking for.
 

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Discussion Starter · #6 ·
yea ive been running it foe about 4 - 5 weeks now! Only tend to ride it to and from wrk and thts about a 10minute ride not at full throttle! i usally change gear about 5-6 thousand revs. would tht be enough time to get to 60?
westie
 

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4/5 mins is too long iirc think 2mins is enough as long as u can blip the throttle without it bogging down then ride it below 6000rpm till engine reaches temp ( 60c ) then ride it how u like, think thats right but im sure OP will put me right
 

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4/5 mins is too long iirc think 2mins is enough as long as u can blip the throttle without it bogging down then ride it below 6000rpm till engine reaches temp ( 60c ) then ride it how u like, think thats right but im sure OP will put me right
I just keep mine under 5-6000rpm till the temp shows about 55 - usually only takes a few mins
 

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I just keep mine under 5-6000rpm till the temp shows about 55 - usually only takes a few mins
Hi !

id say that because the Temp sensor is located in Cylinder Head you still have very cold coolant in radiator after temp show's 50~60.
Its typical f*ck up to rev the engine highly after the temp get's 50~60 as the whole system aint in that temp.. when you start to spank the engine like that it get's very cold coolant from the radiator and that aint good, so better warm up the complite coolant system enough before high rev's and fast riding !

bye

markus
 

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Hi !

id say that because the Temp sensor is located in Cylinder Head you still have very cold coolant in radiator after temp show's 50~60.
Its typical f*ck up to rev the engine highly after the temp get's 50~60 as the whole system aint in that temp.. when you start to spank the engine like that it get's very cold coolant from the radiator and that aint good, so better warm up the complite coolant system enough before high rev's and fast riding !

bye

markus
Surely the temp shown is the coolant / radiator temp??

I would be very surprised if a cylinder head only ever got to 60???
 

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Surely the temp shown is the coolant / radiator temp??

I would be very surprised if a cylinder head only ever got to 60???
Hi !

better check the w.s.m or owners manual to see the temp value for the thermostat opening. it didnt open at during 40, so better be sure and warm up the engine longer than some minutes escpecially during U.K winter weather..

hopefully i wasnt too harsh~rude before..

bye

markus
 

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Thermostat opens at 65 degress C. If yours is running at 40 it sounds like the thermostat is stuck open to me. Cooling system on the Mito is super efficient design - mine rarely runs anywhere near the top end of the gauge.

When you've got up to 40 degrees, jump off and place your hand on the top corner of the rad where the coolant pipe connects. At that temperature the rad should be cold as the thermostat shouldn't have opened yet. If it feel warm then the stat is open and the engine is being overcooled.

If it is the stat, its probably just some crud thats got into it thats stopping it closing properly, and not a massive job to whip out and clean.
 

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Discussion Starter · #17 ·
When i was on my way home from work today, When i was waiting at the traffic lights the temperature gauge was at 50
but whn i rode off it went back down to 40


westie
 

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When i was on my way home from work today, When i was waiting at the traffic lights the temperature gauge was at 50
but whn i rode off it went back down to 40


westie
When stationary there's no airflow cross the rad to cool it, so temperatures will rise quite quickly. Once you're moving again the air flow across it will quickly drop it again. Saying that tho, if deffo sounds like your thermostat is stuck open for it to happen at all!
 

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Thermostat opens at 65 degress C. ...
Hi !

so it's still the same value as during '1987, Cagiva is still using the same Thermostat.

So now we can say that better warm up the complite coolant system before rev'ing the engine. cannot rev the engine as soon as it get's to 55~60 like i said because it will get cold coolant from radiator..and that aint good.

bye

markus
 

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your engine will never warm up in a few minutes.
like markus said the whole system must be warmed up.
then there is your gear box, that needs warming up to.
operating temp of the gearbox is around 80 deg.
so whe are talking about half an hour before it is all warmed up.
 
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