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Author Topic: head for a 1977 RM 250 B  (Read 1524 times)

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Offline Nipper

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head for a 1977 RM 250 B
« on: April 05, 2015, 04:01:10 PM »
Hi .looking for a head to suit a RM 250 B. Cheers.
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Offline Digga

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Re: head for a 1977 RM 250 B
« Reply #1 on: April 05, 2015, 04:18:38 PM »
Did DeCoster Jnr destroy it yesterday?
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1977 Yamaha YZ250D, 1977 Yamaha YZ400D, 1980 Yamaha YZ125G

Offline Nipper

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Re: head for a 1977 RM 250 B
« Reply #2 on: April 05, 2015, 04:57:20 PM »
yep, the spark plug had come loose again. took the plug out and  could see the thread is in poor condition.
might be able to get a helicoil inserted.
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Offline Ted

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Re: head for a 1977 RM 250 B
« Reply #3 on: April 05, 2015, 05:32:46 PM »
You get the 125 sorted?
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81 YZ 465 H   77 RM 125 B

Offline LWC82PE

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Re: head for a 1977 RM 250 B
« Reply #4 on: April 05, 2015, 10:20:04 PM »
Quote from: Nipper on April 05, 2015, 04:57:20 PM
yep, the spark plug had come loose again. took the plug out and  could see the thread is in poor condition.
might be able to get a helicoil inserted.

Instead of that get a Wurth Timesert. They are much better for spark plug thread repairs.
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Wanted - 1978 TS185 frame or frame&motor. Frame # TS1852-24007 up to TS1852-39022
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