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Author Topic: Flywheel magnets  (Read 271 times)

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Offline trevo

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Flywheel magnets
« on: October 04, 2020, 09:02:44 am »
Hi, been struggling with a 1984 KDX 175 flywheel, the magnets are coming loose,any advise with what to stick it on with, Pratley products did not do the job
« Last Edit: October 04, 2020, 11:32:40 am by trevo »
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Offline Welsh

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Re: Flywheel magnets
« Reply #1 on: October 04, 2020, 09:19:21 am »
Hi, been struggling with a 1984 KDX 175 flywheel, the magbers are coming loose,any advise with what to stick it on with, Pratley products did not do the job

Which Pratley product did you try?  8)
When is this "Old enough to know better" supposed to kick in?
 

Offline Dux

Re: Flywheel magnets
« Reply #2 on: October 04, 2020, 09:35:26 am »
What about JB Weld or Araldite  ?
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Offline JC

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Re: Flywheel magnets
« Reply #3 on: October 04, 2020, 10:47:31 am »
I feel your pain....  Just out of school I bought an air cooled KDX175 from a very nice policeman in the old CapeAds. He failed to mention the flywheel magnets are attached with pratley steel. it lasted all of 20 minutes..  being a broke student I couldn't afford to buy even a 2nd hand flywheel, so sold the bike to a friend

Hope you get a solution  :thumleft:
 

Offline trevo

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Re: Flywheel magnets
« Reply #4 on: October 04, 2020, 11:31:29 am »
Hi, been struggling with a 1984 KDX 175 flywheel, the magbers are coming loose,any advise with what to stick it on with, Pratley products did not do the job

Which Pratley product did you try?  8)
Pratley Steel
DILLIGAF
 

Offline Cracker

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Re: Flywheel magnets
« Reply #5 on: October 04, 2020, 04:37:16 pm »
Perhaps you need a product with a bit of give in it. Pratley steel cures solid and brittle.

Try Pratley Wondafix
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Offline Welsh

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Re: Flywheel magnets
« Reply #6 on: October 04, 2020, 04:40:27 pm »
Perhaps you need a product with a bit of give in it. Pratley steel cures solid and brittle.

Try Pratley Wondafix

That was exactly my view and clamp it.  :biggrin:

Only used it recently and I am sold on it, it has some flexibility so it can put up with some differential expansion, so may help with the magnets.  8)
When is this "Old enough to know better" supposed to kick in?
 

Offline BuRP

Re: Flywheel magnets
« Reply #7 on: October 04, 2020, 06:12:33 pm »
Dunno if it's only me but I'd use Pratley Clear - after sanding the lot clean, thinners to degrease all, compressed air etc, but I'm nigh on sure that Clear (which is an excellent epoxy glue, and some give comes standard) will do this job well.
All those other products have some fillers in the glue hence there's less glue to actually glue..... sortof  ;)
« Last Edit: October 04, 2020, 06:14:39 pm by BuRP »
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Offline 2StrokeDan

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Re: Flywheel magnets
« Reply #8 on: October 04, 2020, 06:25:13 pm »
If all else fails, look for these aftermarket ignition guys like Vape, Powerdynamo, Zeeltronic and Ignitech.

Problem is the cost.
 

Offline Epilot

Re: Flywheel magnets
« Reply #9 on: October 05, 2020, 08:03:59 am »
JonW did a successful repair on his KTM 520. Either wait for him to respond or pm him.
 

Offline JonW

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Re: Flywheel magnets
« Reply #10 on: October 05, 2020, 09:06:06 am »
JonW did a successful repair on his KTM 520. Either wait for him to respond or pm him.

We used Sika All Purpose epoxy and it worked well

Was recommended to me by someone who repairs flywheels professionally.

This stuff:

https://zaf.sika.com/en/residential-and-homeimprovement/products/rigid-bonding/sikadur-ap.html
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