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Author Topic: 1997 BMW F650ST to F650R: Enduro Hellride Conversion  (Read 9522 times)

Offline irk miller

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #20 on: Jan 03, 2018, 14:11:13 »
This thing gonna be your ride at the thaw? It looks like when you get it done it will take you anywhere!
Not sure I will have it done by Thaw or not.  The plan is to have it done, tho.  I hope it can do most of the terrain at Thaw, that's for certain.

Offline Maritime

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #21 on: Jan 03, 2018, 14:21:19 »
Shit the rate you are moving it will be LOL. unless you hit $$ road blocks and that would suck, but it happens to all of us.
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline SONIC.

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #22 on: Jan 03, 2018, 14:32:15 »

Offline advCo

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #23 on: Jan 03, 2018, 14:35:25 »
Yeah, that XL tank is spot on.

Spanish for a fighting chicken  ;D
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline irk miller

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #24 on: Jan 03, 2018, 14:41:13 »



You and I are fighting chickens, my alumnus brother. Hahaha

Offline irk miller

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #25 on: Jan 05, 2018, 18:00:36 »
XL600r seat fits perfectly.  Side covers will certainly be made from fiberglass, although Iím considering doing vacuum molded plastic.




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Offline irk miller

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #26 on: Jan 06, 2018, 03:56:21 »
Pause for a station identification...




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Offline Maritime

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #27 on: Jan 06, 2018, 12:15:16 »
Yes, that is excellent!
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson

Offline irk miller

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1997 BMW F650 El Diablo Hellride
« Reply #28 on: Jan 06, 2018, 15:25:35 »
In some not so excellent news, weíre looking at a motor showing only 70 psi compression. It sat for two years, so maybe Iím lucky enough to have stuck rings. It definitely smoked and it definitely put some oil on the plugs. It definitely got really hot. 

I needed to find TDC, but without pulling covers, so I can put compressed air into motor for a leak down test. These motors have a dimple in the crank at TDC to lock the motor during valve work and whatnot. The special bolt is really just a bolt with a rounded tip. In my case, thatís the fuel tank bolt...



This bolt is removed, and gets replaced by the rounded tip jawn...





Then I rotate the motor until I can feel the piston at the TDC on the compression stroke. A screwdriver works here...



Once itís at TDC, I crank the special bolt down about 1.5 turns and Iím locked in place.


Next, hook up the compressed air to a spark plug hole. To do this, I have the hose from one of my compression testers rigged up to utilize the quick fitting on my air hose. Itís as simple as pullling the Schrader valve out...



Hooked it up in a plug hole...



Then raised pressure to 90 psi. I wasnít getting much at 30psi, which is why I turned it up. No air out the exhaust or intake ports, but a bunch of air out the oil filler and I even got some oil out the breather tube...



Pretty much puts us at bad or stuck rings, barring any other hidden surprises.




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Offline Mr.E

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Re: 1997 BMW F650 El Diablo Hellride
« Reply #29 on: Jan 06, 2018, 17:00:48 »
This is never going to work.








I'm in.