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[kona76]

With regards to a brand new SEFB and a stock engine (except the exhaust pipes), when is the earliest a dyno could be run? I get the feeling I should wait as I have witnessed the stress of a dyno on my Eclipse Spyder recently. The tuner pushed my Spyder way more than I ever have had the guts to do. Is this the same with all types of dyno's?

I am just reaching 500 miles today. Do you wait until certain miles are achieved? Or until certain services are performed?

Can you tell I am a newbie yet?

Thanks.

[UK Dave]

Kona76 - the dyno man is going to take your new bike to max revs in (probably) every gear.

In theory this should do no damage because the bike's electronics will limit the revs so it doesn't fly apart

but

How have you been running it for the past 500 miles?

Based on what you say, you sound like a conservative rider (like me)

I would be wary of letting the tuner loose to max out the bike until I had at least been there myself.

In any case I suggest you don't observe the dyno runs (go far enough away so you can't even hear it) otherwise you are going to be a nervous wreck (I could hardly stand it when he did mine and that was with 6000+ miles on it)

But if you don't watch him then every little noise you hear from then on you are going to be thinking was caused by "that guy who f*cked up my beautiful brand new bike" - this will just be your imagination of course - but you get the idea...

Just my tuppenceworth

Cheers

Dave

[grc]

Kona76,

Just a general rule of thumb, no dyno runs under 500 miles, and 1000 miles would be better.  Full throttle max load dyno runs generate a lot of heat, and you don't want that until the pistons and rings are broken in completely.  And I agree with the previous post - don't hang around to watch the dyno run or it will probably drive you crazy.

Jerry

[Fired00d]

....And I agree with the previous post - don't hang around to watch the dyno run or it will probably drive you crazy.

Jerry

I'm at the opposite end of this spectrum. I would rather watch the dyno being run on my bike. This will give me the opportunity to make sure it's done right.

Things I Watch For...

Bike warmed up before run
Proper ventilation during run (fan blowing on motor)
Make sure no shifts are missed
Any abnormal smoke coming from exhaust during acceleration and deceleration
Any parts flying out exhaust (don't want anything in the engine to let loose and come flying out and I'm not advised of it)
Listen for any abnormal sounds coming from bike

But I'm the type of person that doesn't like to go to sleep during surgery. Have a fear of the "wrong" procedure being done while I'm knocked out. [smiley=nervous.gif]

 [smiley=pumpkin.gif]
Ride Safe,
Fired00d
 [smiley=fireman.gif]

[kona76]

OK, thank you for the advice. I'll wait for the first 1000 miles and the first tune up from the dealer. I don't know if I am going to witness the craziness in person, but I am going to get it dyno'd with in the next couple of weeks. I am already at 650miles and I can't wait to get it dialed in just right.

Thanks everybody.

[kona76]

There is another theory on engine break-in.

[kona76]

I will be doing this break in procedure on my 04 SEEG this spring when I put my 103+ heads, forged pistons and 251 cams in it.

[h2oski]

You obviously have the faith and courage to test such proceedures. I am sure the process will work as expected. But I think it takes guts to experiment like that with such big ticket items as HD CVO's and the inheirant high cost of parts.

To me it isn't very risky.  I am a powertrain engineer in an engine plant so I know the new processes that are used for manufacturing engines.  With that said though I would not do this break in procedure with a set of cylinders that are rehoned by your local speed shop.  They most likely wont have plateau honing processes.  

Here is a definition of what plateau honing is.

Plateau Honing is a special cylinder honing process that effectively "pre wears" the cylinder bore similar to the way that a piston ring "breaks in" the cylinder during the first phase of its life cycle. The plateau honing process takes the tops off of the hatch pattern and increases the bearing area of the honed surface.