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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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Thread Tools | Display Modes |
#11
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Steam from the pipe is quite common as on many bikes the overflow hose ends somewhere near, often above, the pipe. The coolant then drips on the hot pipe causing the steam.
Let the bike run and check if water/coolant drips on the pipe. If so try to find from where. I bet it comes from the overflow hose... |
#12
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When the bike is cold unscreew the radiator cap and put you finger so you seal good with your finger..if you feel presure or hissing sound whe you stuck out you finger then is head gasket problem.
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#13
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Quote:
As pressure builds with temp it would push coolant past the cap and out the overflow that vents directly onto the exhaust. Over filling the rads will also purge some coolant out as there is no expansion tank on these models, so expect a bit initially too. Usually coolant just over the fins is the right place. I put the cap from my 2013 on and no more issues. My dealer knows of at least one other he changed under warranty! |
#14
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Quote:
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Phil (New bike pending...) |
#15
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As coolant heats it expands. If you fill the radiator to the top, unless you have an overflow tank the extra volume purges out of the cap. My bikes both run with the coolant right at the top of the fins when looking inside the radiator. If I top them off they will purge the excess to that point.
These bikes run pretty cool so maybe you just never actually got it very hot prior to experiencing this.
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jeff '00 XC250 (mine) LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion. '04 EC250 (the kids) (he can do his own mods haha!) |
#16
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Quote:
GasGas uses a 1.8bar cap ex factory. Not all KTM caps fit, they have changed them to a new design from 2017 onwards... |
#17
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Thanks for the help everyone
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#18
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When installing new head o-rings should I lube them at all or just put them straight out of the package to the cylinder head?
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#19
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you will need to warm them up (by hand) and use grease or similar just to hold them in place, so yes
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2003 txt250 Pro 2013 Ossa 280i |
#20
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All the ones I've gotten are a bit small so need a stretch which is a bit 'Bush' but they were fine afterwards.
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'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
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