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Modelengineer, How wide was your engine? I have an old honda 250 road bike engine that weighs around 65kgs and is a little over 450mm wide, this is considerably wider than originally intended for the sidewinder I believe. I really think this is too much to be 'hanging' off the side of the kart...

Independent rear suspension is probably out of my depth mainly due to cost. I think I'll probably end up going along the lines of Modelengineer's sidewinder, I'm currently waiting for a seat to arrive then I can start having a measure up. I'm probably going to need a longer axle to make up for...

I've had another much closer look into the sidewinder option and I'm still a little unsure of its suitability. The honda engine I've got is dimensionally a lot larger than seems to be used in the plans and is also a fair bit heavier (being from a road bike). Without offsetting the seat I dont...

Is he on here somewhere? do you have any pics? cheers

I've also looked into that, It gives a nice short kart however a pretty poor weight distribution. The sort of thing I've got in mind is: http://www.youtube.com/user/glassglowz#p/u/4/D6Lba_Zq3Lg However I'm going to do better 4-bar suspension on the front and a stronger suspension setup at the...

penetrating oil overnight then a HUGE hammer, failing that apply heat to the jammed areas with a blow torch.

I'd thought of jack shaft, the only thing is I'm trying to build the kart quite short and low. The problem with the bike engine is that I can only really run the chain back or about 45 deg down. So the engine would have to then be in front of the pivot. I think I'll try and get some engineering...

I'm building a kart with rear simple rear suspension, but cannot decide where to put the engine. Info - its based around a 250 6speed bike engine and will be only used off road. I can either: Mount the engine on the frame and try to line up the pivot point with the centre of the output...

I'm thinking I'm just going to do a simple swing arm arrangement. Probably with the engine on the actual swing arm.

sorry should hav said. Its for a fully off road kart. cheers guys

I'm building a fairly sizeable kart with a 250cc 6 speed manual bike engine. It will have independent suspension up front and either solid or partly sprung rear end. I want to make this kart wide and low however I'm struggling to find a rear axle wide enough. I'm after a 30mm axle thats at...

Flat, which should make things easier. cheers for the advice.

I'm contemplating the possibility of making a guide to drill with; using a lathe make an insert that will fit into the centre hole and bolt that in place by drilling the plate and bolting through using the original bolt holes then using the pillar drill, drill out the new holes using pre drilled...

I'd be using the hubs below. Current plan is to put the new holes between the old ones, basically rotate the wheel 45degrees then drill. The other problem is to drill the holes accurately enough as I dont have an indexing table...

I'm going to be building a kart over the summer and am currently sourcing all the parts. I've found an axle and hubs and am now on the hunt for rear wheels. I want to use a set of wide knobbly quad wheels however the problem is my hubs are 4" Pcd and nearly all wheels are 4" 1/2 or 110mm pcd...

20 to 1, with a 14.5 inch mini atv tyre on the back max's out at about 8 mph but will tow two big downhill mountain bikes plus rider up a fireroad easily.

Hi, A couple of months ago i fixed an old mountain bike v brake onto the engine so that it pressed onto the cluch when the lever was pulled. It works absolutely great and requires next to no force to stop the rear wheel turing because of the new 18 to 1 ratio. Without the big ratio it would be...

cheers for the speedy replies, Are parts available to put a brake on the 5/8" jackshaft? I'd put one on the back wheel but im getting a bigger wheel that wont really leave room. bill

Hi, I've just built a minibike, it currently has no brakes and could do with one. Its a 5.5hp with a 12 to 1 to give it heaps of power for towing mountain bikes and stuff. It works really well at the mo but would be great to have some stopping power. It doesnt need anything too fancy. I am...

Hi I was wondering whether anyone has ever used a manual motorbike clutch, or anyother sort of manual clutch on either a go kart or a mini bike? I've nackered one cheapish centrifugal clutch and dont want to spend big bucks on a torqe converter. thanks for any help. bill