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Path: utzoo!linus!decvax!cca!ima!ism780!darryl
From: darryl@ism780.UUCP
Newsgroups: net.cycle
Subject: Re: BMW R65 - (nf)
Message-ID: <266@ism780.UUCP>
Date: Mon, 25-Jun-84 00:12:01 EDT
Article-I.D.: ism780.266
Posted: Mon Jun 25 00:12:01 1984
Date-Received: Tue, 26-Jun-84 06:19:57 EDT
Lines: 38

#R:unc:-737600:ism780:15800018:000:1706
ism780!darryl    Jun 24 09:14:00 1984

There have been several discussions of the vibration in "BMW News", the
magazine of the BMW Motorcycle Owners Association.  The suggested fix
is to put rubber spacers on the engine moutine bolts.  The June 1984
issue has this to say:

    Rubberized Spacers sometimes used as engine vibration dampeners on the
    R65 are available from Jesse Fowler (Mid-Michigan Cycle)at $20 per
    set.  The term engine vibration dampeners is really a misnomer, since
    you are really dealing with frame harmonics here rather than engine
    imbalance;  you cannot cure the problem with engine balancing techniques.

    These spacers consist of a hard rubber buffer sandwiched between and
    firmly fastened to two steel washers.  They replace the 8mm metal spacers
    on the front engine mount on the R65;  one of them is notched to clear
    the oil filter cover.

I happen to have an R65, and it certainly does vibrate.  All the same, it
is a relatively small range (about 4250-4750 on my bike), and I find that,
when I do use the engine in this range, I am merely on my way out to 5000.
By riding this way, I find that the vibration is hardly a great annoyance.
Because the R65 has the famous boxer's torque from below 3500, I rarely
go above 4000 in the city, and I like to keep the rpms up when riding
through the canyons.
			 ______
			/      \
		_______|        |_______
	       /       | Darryl |       \
	  ___/|________|Richman |________|\___
	 /  | | | | | | ...!ima  | | | | | |  \
	|   | | \`|'/ | !ism780  | \`|'/ | |   |
	|   | | -( )- | !darryl  | -( )- | |   |
	|   | | /| |\ |          | /| |\ | |   |
	 \_______| |___          ___| |_______/
		 | |   |________|   | |
		 `-'                `-'