Popular Post Vintage Grumble Posted November 2, 2015 Popular Post Share Posted November 2, 2015 ### Due to Photobucket being a pack of complete fuckwits, I've removed all the pic links to shorten Fred up a bit. ### So I got side tracked once again, with the offer of a go kart frame. I made it longer so myself and the GPX750 motor will fit in it. I've been fiddling with it on and off for a few months now. Any ways, pretty basic business, just the old road bike powered go kart lark. Annnnnnnnnnnnnnnnnnd that's about where i'm up to. Regards, VG. 26 Quote Link to comment Share on other sites More sharing options...
Mof Posted November 2, 2015 Share Posted November 2, 2015 Holy sheyit that's a big motor 1 Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted November 2, 2015 Author Share Posted November 2, 2015 Its not as crazy as the modern bike motors a lot of people use, its around 105hp, still enough for fun times. I'm also going to be able to run bigger/squishy wheels, so I can hoon down gravel roads/paddocks/the beach mebbe. 2 Quote Link to comment Share on other sites More sharing options...
Mof Posted November 2, 2015 Share Posted November 2, 2015 Yeah, maybe some big ride-on mower wheels? Quote Link to comment Share on other sites More sharing options...
igor Posted November 2, 2015 Share Posted November 2, 2015 ...with quad tyres for traction off road. Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted November 2, 2015 Author Share Posted November 2, 2015 Yep, 6" ride on rims fit straight on the front, and i'll make adapters/hubs to suit 8" ones for the back. Quote Link to comment Share on other sites More sharing options...
TimShadboltfan27 Posted November 2, 2015 Share Posted November 2, 2015 this thing will be a wheelie machine! any ideas for how youre gonna set up the shifter? Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted November 2, 2015 Author Share Posted November 2, 2015 Just a solid rod down the left hand side probably. But doing a paddle shift set up is easy, you just need a thick cable with solid ends, kinda like a boat steering cable, so may look into doing it that way. The guy I got the cart off has a NSR250R powerd cart that makes like 40hp or something, and he strongly recommended doing a paddle set up, as taking a hand off the wheel can get a little tricky. 2 Quote Link to comment Share on other sites More sharing options...
77magnum13hundy Posted November 2, 2015 Share Posted November 2, 2015 i approve, we had one of these had a 600 cc road bike engine, wnt hrd 4 wot it woz 2 Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted November 2, 2015 Author Share Posted November 2, 2015 i approve, we had one of these had a 600 cc road bike engine, wnt hrd 4 wot it woz Did you just have a single rear brake? Was it enough? I have a set of front brakes, but will be quite a lot of work to fit them. Quote Link to comment Share on other sites More sharing options...
phatt20 Posted November 3, 2015 Share Posted November 3, 2015 i used an auto trans shift cable on the last paddle shift i mades, worked mint and was free. 1 Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted November 3, 2015 Author Share Posted November 3, 2015 i used an auto trans shift cable on the last paddle shift i mades, worked mint and was free. That's a brilliant idea, I never thought of one of them. Quote Link to comment Share on other sites More sharing options...
kicker Posted November 3, 2015 Share Posted November 3, 2015 Look like it'll be a lot of fun. Wire up an ignition cut to the paddles, keep throttle open disregard clutch. 3 Quote Link to comment Share on other sites More sharing options...
77magnum13hundy Posted November 3, 2015 Share Posted November 3, 2015 Did you just have a single rear brake? Was it enough? I have a set of front brakes, but will be quite a lot of work to fit them. brakes haha, cant say we did... no clutch, rod action for changing cogs and a flat rear tire. Went fanging into a bushwalk carpark up by Karioi lakes went to flick the wheel and floor it to do mad donuts on the gravel and then tipped over and i fell out, had roll cage but didnt strap in properly... Pretty sure it had a custom caliper bracket made and a smallish rotor on the solid rear axle... A- would trade again 4 Quote Link to comment Share on other sites More sharing options...
xygtho Posted December 15, 2015 Share Posted December 15, 2015 I applaud your innovation and quality of workmanship. I'ts just a shame the kart you utilised is / was worth $$$ as a vintage circuit kart , however you were not to know. Please continue 1 Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted December 15, 2015 Author Share Posted December 15, 2015 Yeh, apparently some other dude was going to buy it for vintage cart racing, but didn't show up, so I got it. He was a bit dark when he heard I cut it up. Bouns of old cart is low chromoly content, so easier for numpties like me to weld. Now that the utes done, I can get back to working on this. 5 Quote Link to comment Share on other sites More sharing options...
Popular Post Vintage Grumble Posted November 12, 2016 Author Popular Post Share Posted November 12, 2016 Yeh so, this has become a very long term project. I haven't touched it in a very long time, but recently got a second hand front brake set up. I have to machine up some new front stub axles to accommodate them, but should do the trick. This morning it was pissing down with rain, couldn't do any other chores, so quickly whipped up the first half of the exhaust. Chur my bro. 15 Quote Link to comment Share on other sites More sharing options...
Moffmo Posted November 12, 2016 Share Posted November 12, 2016 Fantastic. I'd love to do a project like this Quote Link to comment Share on other sites More sharing options...
Truenotch Posted November 18, 2016 Share Posted November 18, 2016 Get this thing going.... DON'T MAKE ME COME OVER THERE. /I'll likely be there in the new year with my new chob. 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Vintage Grumble Posted February 26, 2017 Author Popular Post Share Posted February 26, 2017 Markku came over here, and told me off for not working on this enough, so I did a little more this weekend. I mounted the fuel tank, its just a plastic ride on mower one, I may upgrade this in the future as its not very industrial. I also modified the original coil bracket to fit the roll bar, as its the same size as the motorbikes frame. I then mounted the radiator, its basically sideways to the air flow, but seemed to fit there best. I will make up a big alloy scoop to whack air through it. Then I made up a flange, and a mount, and finished off the exhaust. I will weld a couple of tabs to it, and use springs to hold it onto the support. Next on the list is the intake/plenum, then all I need is to sort plumbing and wiring, and I can run the engine. One thing I do need is an oil cooler to suit this engine, as I didn't get one with the motor (GPX750, around 86-89) so if anyone knows of one kicking around Regards, VG. 11 Quote Link to comment Share on other sites More sharing options...
.thumb.jpeg.384ff72c8d2b0ee0d34a7bdedb55bdcf.jpeg)
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.