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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => Project Custom Motobricks => Topic started by: TNastsyDwnTwn on September 09, 2016, 06:42:47 PM
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I am changing my k bike into a scrambler and I have ran into a problem with the handlebar. For some reason the throttle trust won't slide onto it. I bought a 7/8 bar. Any suggestions will be appreciated.
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I am changing my k bike into a scrambler and I have ran into a problem with the handlebar. For some reason the throttle trust won't slide onto it. I bought a 7/8 bar. Any suggestions will be appreciated.
Despite what advertisements may seem to imply, ⅞" is greater than 22 millimeters—the dimension of BMW K-bike handlebars. Many people just sand down the ⅞ handlebar until the BMW controls will slide onto it. Your challenge is not uncommon. What you mean by throttle trust I'll figure out after I get some sleep.
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I meant throttle twist. Sorry. I guess that's what I will have to do tomorrow. Thank you.
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I meant throttle twist.
Thanks. I'll stay awake a little longer then.
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ok thank you. What is the procedure to lubricate the the twist handle so it will return to its previous position.
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ok thank you. What is the procedure to lubricate the the twist handle so it will return to its previous position.
You'll find instructions on the procedure in a pdf in this post right here (http://www.motobrick.com/index.php/topic,1797.msg8852.html#msg8852). I'll add that you must be certain that the flange on the throttle grip isn't making contact with the throttle/master cylinder assembly because friction from that will slow the return, too.
You'll find instructions on this and other procedures in the Technical Library Card Catalog (Index) (http://www.motobrick.com/index.php/topic,1797.msg8852.html#msg8852).
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Thank you so much. I appreciate it. :2thumbup:
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Resist the temptation to hammer it :nono on, sand it down until it slides on.
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I came very close but I resisted the urge! So what exactly would be best to sand the bars down with?
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So what exactly would be best to sand the bars down with?
You're going need an experienced handlebar sander for that answer. I'm just an observer.
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Emery strip on a roll, keep rotating it so you get it even, you could also use a file. Wrap a few of layers of tape to mark the length you require, this should stop you from marring the rest.
Regards Martin.
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Ok just making sure by hand would be the suggested way.
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So TNasty, you asked in my thread what I ended up doing:
I attacked the problem from both directions, I sanded the paint off the grip portions of my new 7/8" bars and I filed the internal diameter of the bmw controls. It doesn't take much, but it is extremely tedious. Took probably an hour and two beers. Use a rat tail file, about 3/8" round.
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Ok thank you. I used a dremel tool on mine. Thank you.