Overheating

Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

Hi
My bikes looking like it should after my accident, but it is still overheating. The needle is moving up to about 3/4 of the gauge and varying, is this something to worry about??? Before its new piston it used to stay steady at just under a 1/2.
2 strokes seize when they get too hot dont they??? Arghhh.... the forum curse!!!
Thanks
Dyl

NSRboi · Borekit Bruiser Joined: 04 Feb 2002 Karma :

Ropehead · Could Be A Chat Bot Joined: 02 May 2002 Karma :

its eighter the :

(1) thermostat sender unit giving a wrong reading,
(2) thermostat not operning at right temp.
(3) 2 much coolent mix ie 2 thick
(4) coolent leak causing premature boiling

Does it get hot then drop dont 2 a normal temp then heat up again?
or does it get hot and maintain the temp constant?

Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

The accident happened ages ago, putting the oil pipe on the crankcase breather!!! DOH!!!
The needle increases with revs, but isnt noticeable at low speed due to the fact it revs out so quickly. Only at high speeds where you have to hold it at 9000 to get into 6th gear ok.
The sender unit took a right bashing when i took the engine out. I mnaged to break the top bit off and bolted it down too far in to the cylinder head. Still is too far in the cylinder head. Its not leaking and its had a new thermostat. I used castrol motorcycle coolant which said dont mix with water, so i didnt. Shouldnt be too thick, should it???? Changeing coolant is a right pain as it means taking off EVERY piece of fairing....
Can i check the temp without the sender unit, so i can check if it really is getting too hot???
Thanks for the replys and the help.
Dyl

Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

Could someone pleeease reply, its quite worrying!
dyl Laughing

WildGoose · White Van Man Joined: 21 Mar 2002 Karma :

engines can get very hot man

you only need to worry if it goes into the red

my moped gets stupidly hot in london traffic, but if everything is up to scratch it should never go into the red, and it never has

Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

Its all ok now, it doesnt get hot as long as i thrash it and dont labour/strain the engine. Think there was probably an air bubble in the sytem.
Thanks
Dyl

craigT19 · Jolly Green Giant Joined: 09 Feb 2002 Karma :

yeah gosse is right in this weather it will go up more, if get stuff at lots of sets of traffic lights 1 after anouther i.e town centers then mine goes up as well
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Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
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Dylan · Trackday Trickster Joined: 03 Feb 2002 Karma :

It didnt do it as much last year, but then agin it wasnt really very hot last year, only got my bike in august.
Dyl

TJ NSR · World Chat Champion Joined: 03 Feb 2002 Karma :

ye goose is correct....in the hot it tends to get hotter! and runs smoother!

if it goes in the red u should be concerned then check ur coolant and turn the engine off immediatly

Ryan · Nitrous Nuisance Joined: 09 Mar 2002 Karma :

does anyone know where the fan is on a RVF400 im sure they're supposed to have one like the vfr400's, but mine nevers seems to come on Shocked

(or i just cant hear it like i can on my mates bikes) even when the bike is getting hot(ish), can anyone tell me where the fan is so i can check it's there cheers Rolling Eyes