JL4 cracking

[sean brady scooters]

its a common problem on jl 4 s,
maybe stronger springs would also help as well as extra bracing

[wack 63]

Now you tell me just as I have one coming in the post

[gadgetman]

It's a very common problem with the JL4 I remember watching one on a mates GP totally disintergrate on the way back from Brid a couple of years ago after the YSA Coast2Coast and when I say disintergrate I mean disintergrate. The main chamber cracked straight down the middle along it's length as if it had been hit with a sledge hammer and fell to the road surface where it just exploded into a thousand bits . The well known Lambretta racer & tuner Vinnie Smith was the rider for those of you that know him.

[bazman]

This might be an option?
http://www.ekmpowershop12.com/ekmps/sho ... -931-p.asp

[leigh]

This might be an option?
http://www.ekmpowershop12.com/ekmps/sho ... -931-p.asp

Good exhaust but my rubber mount for the tail can disintegrated in france got it solid mounted now.

[Dell Oughta]

I've had two JL4's crack, both in the same place as edens. The snail one I have also cracked on the ubend that the muffler is attached to and cracked where the bracket is joined to the expansion chamber...twice (makes me wonder why I bought the the second one )

Mike

[Andy Pickering]

Does the JL2 have the same problem then..???

[wack 63]

I can see why they may crack as they are a lot thinner steel compared to the JL3 I also have.Think I will double spring the manifold joint and see