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Help please, broken plug cap

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Anthony Scott 204/04/2019 11:48:29
93 forum posts
12 photos

img_20190404_110156.jpgHello, I recently took the u/c off my Acrowot XL. The Roto 35 powering it is mounted inverted & the plug cap took enough impact to tear the cap from the HT lead. There is no other damage. The Roto uses an unusual plug which is flat topped so a conventional plug cap is not suitable. A new CDI unit is £120!!.

Can anyone help with re-connecting the plug cap to the HT lead, please?


Edited By Anthony Scott 2 on 04/04/2019 11:51:05

flight104/04/2019 13:53:09
722 forum posts
36 photos

have you contacted these people they might know of a replacment cap to replace the broken one . whole unit £81 otherwise indecision new caps for rcexl rm6 plug are easy to find so why not these?


Ultymate04/04/2019 15:08:41
1702 forum posts
62 photos

Just Engines list replacement caps but you may have to change your spark plug to suit

Anthony Scott 204/04/2019 16:04:46
93 forum posts
12 photos

Many thanks F1 for the link to BigPlanes, they are a new name to me & offer better value than Perkins.

I have identified an alternative plug but not the CM6, it is too small in diameter.

Ron Gray04/04/2019 19:03:03
1921 forum posts
799 photos

The NGK replacement is the BMR6F, Just Engines sell both these and replacement plug caps to suit. £15.50 for the pair!

Anthony Scott 205/04/2019 13:19:02
93 forum posts
12 photos

Thanks Ron, worth a try.

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