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Old 12-11-2007, 7:05 PM   #1
 
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Replacement engine sat for over a year. What to expect

Hi,

I just bought myself a second hand engine with low(ish) miles to go on my bike.

The engine came from a "one owner" bike that had an accident, but the engine/radiator was not damaged at all but for some small scraped at the generator cover....

Looking for the history of the engine I got this from the seller:
"first the accident was in september 2005, the last work was in march 06 for testing, a friend would buy the engine. i wait for his mony longer then a year and so i put the engine to ebay.
The last offical service from a honda dealer was at 29.07.2004 with 6136km, in June 05 the engine get new oil. everything on the bike was changed if it was in time. the clutch is the first because in 11500km i dont destroy a clutch. the chain tesnioner was changed by warranty at 7814km .

The engine is from my bike and you get from me the original service book with the engine number and my name. "

to recap:
-11.500 km about 7.000 miles
-accident in sept 05
-last started for testing in march 06 ( a year and a half ago)
-last oil change in june05 (over 2 years ago)
-everything is on the engine (throtle bodies, injectors, starter etc)

I'm a bit worried about the state of the cylinders/bearings of an engine that has been sat in a garage for so long. Do they rust?
If the fuel pressure diaphragm leaks, I can spot it and repair it, so not an issue...

Can anyone give me an indication of what to expect from such an engine and how to bring her back to life in the nicest way?
Oil change before I even start her?
Start her once for 1-2mins and then oil change?
Turn by hand before hitting the starter button?
Any special additives in the oil to clean the insides?


all comments and suggestions are welcome.

its for a blade 954.
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Old 12-11-2007, 7:11 PM   #2
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Re: Replacement engine sat for over a year. What to expect

Well we all know if you leave an engine standing for a long period of time it can seize. Turn the engine over by hand (if you can) and see if its free.

Maybe strip it down and rebuild it - would be easier as its all off and you can modify the internals if your into that.

Just be careful when you do run it, let it idle for a few mins and let it warm up.
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Old 12-11-2007, 7:14 PM   #3
 
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Re: Replacement engine sat for over a year. What to expect

Start her once for 1-2mins and then oil change?
Turn by hand before hitting the starter button?
I'd do both of these first.
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Old 12-11-2007, 7:20 PM   #4
 
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Re: Replacement engine sat for over a year. What to expect

Originally Posted by Twincam View Post
Maybe strip it down and rebuild it - would be easier as its all off and you can modify the internals if your into that.

If only that was possible. Funds/time plus I'm a bit hessitant to open up a new(ish) engine that has never been opened, esp if I think/hope that its working 100%.

Having said that, I had been secretly looking into these erion stroker cranks and big valve heads and oversize pistons etc. but then again dreaming is still free. everything else you have to pay for.

Maybe I will do these with my old engine that coming off the bike... long term project over the next year or two.
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Old 12-11-2007, 7:38 PM   #5
 
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Re: Replacement engine sat for over a year. What to expect

I would first try to turn it by hand (with the plugs out) then drain the oil and re fill with fresh and a new oil filter. Once the motor is fitted keep the plugs out and turn it over a few time to get the oil circulating round the engine because if its been sat for a while there may not be any at the top end as it would of drained away over time.Then re-fit the plugs and fire it up and let it warm up to running temp before you ride .Then treat it as a new motor for a few miles before you give it loads of throtle.
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