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Enduro Engine 4 stroke (including EFI & Exhaust) 4 stroke engine, EFI, and exhaust discussion |
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#1
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2005 450FSE starter clutch test?
Is there a test method to check whether the starter clutch is working properly? Bike is difficult to start when cold. When it does start and warms up it then re-starts very easily. Valve clearances are good....been playing with different FI trim settings with no luck.
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#2
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Not sure about '05 - but I remember in that era it would sometimes help to turn the key off for a short period of time to let the fuel injection to reset. It wasn't long - switch key off for a minute or two?
I think it had to do with the ecm enrichening the mixture for cold start by too great a degree - cycling the the power helped it get back on track. jeff
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#3
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First, does the engine turn when cold?
What kind of engine oil are you using? There are two parts that can cause slippage on the 2005. The ordinary Z-lock gripper thingy behind the flywheel (cannot remember the proper name for it), and there is a safety clutch next to the starter motor (under the round lid next to the clutch) which will save the starter if the engine backfires. If you have problems with the second one, the starter turns, but the engine won't, it just makes a horrible squealing noise. It is possible to add a shim to this, increasing the forces on the "clutch plates". Be careful when removing the gear, it has a shim at the inner end of it's axle, and it can fall down into the engine whe the gear is removed. To fix this you need to press the wave shim down to get the clip out, then add a 0.5mm shim and reverse the process. A worn z-lock gripper in combination with high viscosity oil is most likely. I'll try to find the proper name for it, it is available directly from manufacturer, wich saves you a bit of cash compared to buying it as an original spare part. |
#4
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