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Thanks for all your help guys . Had a look at a couple of videos already . Really useful stuff on there . My project is going well , just lots to be g…login to view the rest of this post

That's a lovely looking garage you've got there ! The Kwak also looks in great condition for it's age . Fingers crossed you get her running soon .

Probably a wise move having a spare . From my experience a good one is not easy to come by .

Wish i'd known all this before I bloody well bought one ! Anyhow I thought i'd stick a few more pics of the project .
https://i.postimg.cc/D8CjGWVr/I…login to view the rest of this post

So is it the 5jj's that suffer the cracked liners more than any other model then ? I've got plenty of other jap bikes of all makes including Gixxers f…login to view the rest of this post

That's pretty high mileage for an R1 . Really bad luck with the filter though . You must have one helluva grip on you !!

Yeah your right . It's a cheap tester and they're early photo's . No oil down the bores but all the readings were low . Every cylinder was cracked on …login to view the rest of this post

I've used Shell advance for a few years on all my bikes and had no probs . If you've got a spare morning i'd compression test the motor and give it a …login to view the rest of this post

Thanks for the kind welcome chaps . Just taking a step back and showing a few photo's of the tear down .
https://i.postimg.cc/ygwsVt5M/IMG-20200418-WA…login to view the rest of this post

Not sure about the cracked liner situation , I did read that the early bikes are prone to overheating In the combustion area and that the nikasil line…login to view the rest of this post

Hi all , I am rebuilding my 5JJ engine as the liners are cracked . Using a 4xv block as the donor and transplanting the 5jj internals into it . Well ,…login to view the rest of this post

Hi all . Bought this 5jj a couple of years back . I suspected it had a fault with the engine as there were fumes rising from under the tank after a co…login to view the rest of this post

I've got all the parts thanks . I managed to get an Athena gasket set from Deutschland Ebay for £125 delivered so hoping the head gasket is gonna be as good as a Yam part ! Not replacing the rings to keep the cost down . They've all been measured in the bores so fingers crossed ! Third gear and it's ...

I'd be happy to Jompy . Not put stuff on Forum's before so i'll see how it goes . Got plenty of pics so i'll get a few posted . The engine should be going back together this weekend .

Hi everybody . It was my brother Paul who wrote the original post on this thread . He kindly stripped down my 5jj whilst the lockdown is on . I thought i'd update his original post . We decided to transplant the internals of the 5jj into the cases of the 4xv block . I'll send a couple of photo's and ...