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02-04-2018, 08:18 PM | #1 |
Join Date: Oct 2017
Location: shelton, Washington
Posts: 167
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Stripped bolt in head
With all the screwing(err...bolting), i stripped the bolt for the intake manifold. So now i have to pull the engine to get a straight shot with a drill for a helicoil. Its a m8, correct?
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2006 roketa 200cc 1971 Yamaha xs650 2x 1980 xs650, 1 is a café, other is a chopper/brat 1972 Honda xl250 2x early 90's Honda rf600 parts bikes more mc junk laying around. |
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02-05-2018, 12:15 AM | #2 |
Join Date: May 2007
Location: Warshington
Posts: 928
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Would make it a lot easier to work on it. Unless you can sneak a helicoil tap up in there and have room to turn it. Then install the helicoil. rj
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02-05-2018, 08:51 AM | #3 |
Join Date: Oct 2017
Location: shelton, Washington
Posts: 167
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Yeah. Gonna move as much stuff out of the way to see if i can sneek tools up in there. Its the lower of the two bolts, so fingers crossed.
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2006 roketa 200cc 1971 Yamaha xs650 2x 1980 xs650, 1 is a café, other is a chopper/brat 1972 Honda xl250 2x early 90's Honda rf600 parts bikes more mc junk laying around. |
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02-05-2018, 02:09 PM | #4 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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I know my head uses an M6x1.0 thread on the intake side. I would recommend taking the good bolt and sizing it up to make sure of the size you need.
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02-05-2018, 02:09 PM | #5 |
Join Date: Sep 2014
Posts: 1,915
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Can you just pull the head off and leave the engine in place?
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02-05-2018, 09:57 PM | #6 |
Join Date: Oct 2017
Location: shelton, Washington
Posts: 167
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Engine is out. Tomorrow, helicoil
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2006 roketa 200cc 1971 Yamaha xs650 2x 1980 xs650, 1 is a café, other is a chopper/brat 1972 Honda xl250 2x early 90's Honda rf600 parts bikes more mc junk laying around. |
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02-05-2018, 10:00 PM | #7 |
Join Date: Oct 2017
Location: shelton, Washington
Posts: 167
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I already had a m6 kit from a previous po’’s screw up
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2006 roketa 200cc 1971 Yamaha xs650 2x 1980 xs650, 1 is a café, other is a chopper/brat 1972 Honda xl250 2x early 90's Honda rf600 parts bikes more mc junk laying around. |
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02-07-2018, 10:50 PM | #8 |
Join Date: Oct 2017
Location: shelton, Washington
Posts: 167
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Pressure washed the engine and roller while apart, and helicoil the stripped hole. With the help of a friend, adam, we got the motor back in the frame.
I took the opportunity to take the back wheel off and check the conditions of the swingarm bushins. A ton of play, and looks like the rubber bushings in the shock eyes are shot. The shock bushes are easy, but were to get new swingarm bushes? And if the swingarm is wallowed out, what to do?
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2006 roketa 200cc 1971 Yamaha xs650 2x 1980 xs650, 1 is a café, other is a chopper/brat 1972 Honda xl250 2x early 90's Honda rf600 parts bikes more mc junk laying around. |
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02-08-2018, 10:43 AM | #9 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
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Quote:
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02-08-2018, 11:54 AM | #10 |
Join Date: Oct 2017
Location: shelton, Washington
Posts: 167
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Thanks arh. Grease zerk is already installed
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2006 roketa 200cc 1971 Yamaha xs650 2x 1980 xs650, 1 is a café, other is a chopper/brat 1972 Honda xl250 2x early 90's Honda rf600 parts bikes more mc junk laying around. |
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02-13-2018, 12:28 PM | #11 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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I once took a quad swingarm bushing to the local Yamaha dealer and asked him to try and match it. Since he keeps all of the bushings in the same box, he brought the whole box over to the counter. The match was from a PW80 dirt bike; it was much better quality and cost about $8.00 at the time. I promptly shared the part number on this forum and several members bought the same part. It has held up remarkably well.
Maybe you could try something like that, assuming you can extract the existing bushing without destroying it. Alternatively, you could have bushings turned from UHMW, if you know someone with a lathe.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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