How bad does dyno beat up the bike ???

[sandrooney]

Rider57 Steve Cole said he thought you lived in the Colorado Springs area. Ever here of SMC Tuning ?
Thanks,
SR


  Sorry 57 didn't see you posted on the other thread. Thanks

[Xanadu]

I have had mixed experiences with dyno tuning, every time I have to replace the rear turn signal bulbs since they vibrate so badly they actually break the glass bulbs.  I have had to reset the rivets inside the TS shells several times after dyno tuning.  they run the bike up to 5000rpm or more and my bike vibrates like crazy, this kind of stress accelerates mechanical failure modes which show up later.  I had a "free" dyno run at a HD dealer and within 300 miles experienced a lifter failure which cost me $1200.00 to replace lifters, cam and pushrods that were bent.  I had another shop owner tell me of a new motor he had just put together that he took to a local well known dyno tuner with explicit instructions not to redline the bike , but to get timing, and fuel mixture right, turns out the motor was destroyed.  It is not a coincidence that dyno tuners ask you to sign a waiver that they are not held responsible if the bike blows up. 

Now, I have had dyno tuners tell me they have done thousands of bikes with no ill effects, however the ill effects if any would show up later.

if they can dyno tune without twisting the throttle to WOT in 2 nano seconds and watch the tach go to redline, then I would be more inclined to take the bike in, but they have it in a sound proof room and the operators wear hearing protection and I watch everything vibrate like crazy when they do mine... 

let us know how it goes..

[Steve Cole]

A dyno is nothing more than a tool, use it correctly and things are fine. Problem is finding out if the operator really knows how to use it correctly. There are plenty of dyno operators out there but not plenty that know what they are doing.

[xzo124]

If your bike it getting "beat-up" on a dyno, go to another tuner.
Very controlled environment/monitoring, that is designed not to harm the bike, but to aid in the operation of it.
Scott

[sslblv]

I've had two stealer performed dynos on same engine with no problems short or long term (1999 FLHR).

[pikeslayer]

My tuner monitors the rear tire temp. and has a fan blowing directly on the rear tire to help cool it down.

The hardest part of a dyno tune is finding a skilled tuner who actually knows what he's doing.

Lucky for me Bean at www.bigboyzheadporting.com is only 1 hour away.

Steve

Must be nice to be that close.  I'm doing an iron butt from OH to ME July 20th.  Bean will be tuning my bike the 21st.