Wrong Stage IV Installed

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#11

09-02-2022 | 11:45 AM

RK4ME

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Joined: Aug 2009

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From: west Michigan

This thread gives me new appreciation for my 110 HP BMW.

Last edited by RK4ME; 09-02-2022 at 11:49 AM.

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#12

09-02-2022 | 11:50 AM

smitty901

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Now next question is did the install your correct parts in the wrong bike. And will just swap out the used part to correct it?
Seems they may have found the problem when the went to put the 114 upgrade kit in the wrong bike. The slightly longer stroke did not work out.

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#13

09-02-2022 | 12:01 PM

Taxgod4u

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Joined: Mar 2020

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From: Indoors

Return to the bike to the orginal plan. Suggest to them that they give you a free ESP to restor your confidence in your bike... or replace it with a new one, the ESP is the easiest answer for them...

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#14

09-02-2022 | 01:06 PM

Cosmic Razorback

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Joined: Aug 2008

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From: North Carolina

Wow, first time I have heard of this. Crazy!

Getting anything above simply making it right from any type of dealer like pulling hens teeth.

As mentioned I do not think there is any concern long term. Glad they identified the problem and are handling it.

Good luck and hope you really enjoy the new kit.

Last edited by Cosmic Razorback; 09-02-2022 at 01:08 PM.

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#15

09-02-2022 | 09:11 PM

Tommy C

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Joined: Oct 2015

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From: Pine Flat Dam/South Bay Area, CA

Quote:

Originally Posted by rigidthumper

Deck height is the issue. Piston pin height is 1/2 of the stroke distance delta (1/8") , so pin height for a 107 piston is 1/2 of 1/8", or 1/16" (.0625"). This drops the compression from 11:1 to 9.75:1.
Let them fix it.

...and since the piston is going to down in the cylinder a 1/16 of an inch at TDC, the combustion chamber isn't going to have an adequate squish band, so not only is it going to be a dog, it's going to ping like crazy. Get the bike fixed right.

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