BlownCorona Posted April 11, 2015 Share Posted April 11, 2015 Man was pretty mint when I had it I assume the piston doesn't sweep past all that crap so would probably come up good with a hone? Quote Link to comment Share on other sites More sharing options...
tortron Posted April 13, 2015 Share Posted April 13, 2015 Agree. Measure to see if its below the rings and dont worry about it Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted April 14, 2015 Author Share Posted April 14, 2015 Cheers guys, unfortunately the piston definitely does sweep past the pitting so I will look at getting it bored in the next couple of weeks. I gave it a go with a hone I had lying around but the pitting is a bit too deep. In other news the new cables that I ordered from ebay have arrived. Pretty stoked at $40 for the three coming all the way from England. The are the real deal made in Japan ones from the 60s too. 2 Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted April 15, 2015 Author Share Posted April 15, 2015 Has anyone had experience with these really cheap piston kits on ebay? http://www.ebay.com/itm/SUZUKI-FA50-FZ50-JR50-FS50-1-0mm-OVERSIZE-PISTON-RING-PIN-CLIPS-CI-FA50PS-2-/131094862878 Quote Link to comment Share on other sites More sharing options...
MKD Posted April 15, 2015 Share Posted April 15, 2015 nah but if youre bothering to get a rebore you might aswell get a decent-ish piston. the namura ones available here seem ok and are about $45-50 from memory Quote Link to comment Share on other sites More sharing options...
kempy Posted April 16, 2015 Share Posted April 16, 2015 I was recommended a brand from a company called R2 by a guy nicknamed Klinky in CHCH that does a lot of 50cc projects, I'll dig the info out Edit : Here 's the info, Japanese pistons called TKRJ and they are stocked by R2 Enterprises in AK Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted April 24, 2015 Author Share Posted April 24, 2015 Managed to get access to this cool old sunnen precision honing machine to sort out the cylinder. Took it from 41.76mm to 42.07mm in about an hour. All ready for the new piston, can't find a supplier for the tkrj piston as R2 doesn't sell to the general public. Plenty of namura ones online so I may get one of them looking to find a supplier in Chch that I can pick up from. Got rid of the majority of the pitting and can't feel the remainder with my finger nail so should be fine 1 Quote Link to comment Share on other sites More sharing options...
kempy Posted April 24, 2015 Share Posted April 24, 2015 Sweet hookup dude! Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted June 12, 2015 Author Share Posted June 12, 2015 Hey guys not much of an update sorry I finally got my hands on a suitable piston kit was difficult finding a suitable size in NZ I ended up getting a tkrj one off a guy here in Chch who advertises on trademe. That all fitted up nicely and is back together with new gaskets. The other thing is does anyone know if they are the current owner of this bike? I will need to get it registered soon and realise that it probably needs to be in my name to do so. 1 Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted June 13, 2015 Share Posted June 13, 2015 you still got the plates for it? ben10 would be the last person i know it was registered too. Quote Link to comment Share on other sites More sharing options...
Benno Posted June 13, 2015 Share Posted June 13, 2015 I did a change of ownership to the guy I sold it to, can't remember his name though sorry Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted June 13, 2015 Author Share Posted June 13, 2015 Shit that must of been the same guy I brought it off. Can't remember his name either EDIT I just changed it into my name online, does that mean has already released the ownership? DOUBLE EDIT I just bought rego for it online $100 for a year cos its old! Quote Link to comment Share on other sites More sharing options...
Benno Posted June 14, 2015 Share Posted June 14, 2015 The previous owner will get a letter in the mail soon telling him the ownership has been changed, should be sweet without him filling anything out Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted June 24, 2015 Author Share Posted June 24, 2015 I managed to get a full day working on this yesterday. Put the new throttle, brake and clutch cable in along with new levers. Clutch doesn't jam on now when it is engaged which is sweet. Also did some more work on my voltage controller and put it in an enclosure. I wired up the key and starter solenoid and went to fire it up.... unfortunately with the top end rebuild there is now too much compression for the electric starter to turn over . So you can see in the attached video I have to give it a hand by spinning the back wheel haha. I also whipped up a seat for it but it doesn't look as good as I thought it would. Does anyone have any ideas for seats? 2 Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted June 25, 2015 Share Posted June 25, 2015 make sure youve got a really good earth on everything relating to the starter motor. bad earths suck current up like crazy Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted July 10, 2015 Author Share Posted July 10, 2015 Sorry picture less update. Sorted the starter issues, turned out to be one of the brushes wasn't properly contacting. Also wired in my voltage controller and am getting a solid 12.6V out which I am stoked with! Is this high enough for charging the bike battery? I just copied the output from my battery charger but it is easy to adjust, only a matter of changing the number in the computer code. Just minor things to sort now - mount number plate and make a wiring loom for horn, headlamp, brake light and indicators. 1 Quote Link to comment Share on other sites More sharing options...
felixx Posted July 10, 2015 Share Posted July 10, 2015 Legend! Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted July 25, 2015 Author Share Posted July 25, 2015 So this happened today... Pretty dam exciting really, starts with the flick of the key, holds battery voltage and seems to pull pretty hard. 2 Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted July 25, 2015 Share Posted July 25, 2015 video of electric start please! congrats on getting it going finally. sounds like its running mint 1 Quote Link to comment Share on other sites More sharing options...
jacknz123 Posted August 5, 2015 Author Share Posted August 5, 2015 Here is the requested video of the electric start. Have been riding this to uni a bit which is easily the highlight of my day. I am also continuing to improve aspects of the bike but it is great being able to ride it in between. I put a new front tyre on as the tube was beginning to bulge through the old perished one. Next on the list is new brake pads as the brakes are pretty marginal and other minor boring wiring stuff to sort. This will probably be the last update on the project as I consider it pretty much done, kind of glad to be honest as this bike has definitely been a bit of a challenge. Big thanks to all the guys who helped out along the way, especially Kempy for helping me with the electrical side of things, if it wasn't for you this bike would still be sitting in the corner of the shed in pieces. mmmm what to do with my spare time now? 5 Quote Link to comment Share on other sites More sharing options...
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