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Irvine 61 spares?

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dave parnham20/11/2019 13:42:46
183 forum posts
15 photos

Can anybody tell me the thread size and length of the bolts for Irvine 61 exhaust please.

Not the new red engine but older type engine.


Nigel R20/11/2019 13:58:09
3883 forum posts
667 photos

If it helps, the 40 size used 6-32 UNC x 1/2". (data sheet here)

My guess, the 61 would be the same or next size up.


Ripmax still list some old stock of the screw set for the rear exhaust 61. Might be worth a punt?



Edited By Nigel R on 20/11/2019 14:01:24

dave parnham20/11/2019 14:51:45
183 forum posts
15 photos

thanks never thought of Ripmax, I found one in an old Irvine 40 in a box with damaged throttle link , so have been frantically looking around the shed for more matching bolts.

As luck would have it I now have two bolts but I'm ashamed to say I've found engines in boxes I forgot I had and they both need repairing.

Wilco Wingco20/11/2019 16:51:29
233 forum posts
3 photos

Two Irvine 61 on e-bay for spares.

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