Recent content by hefferzon

Well, that was surely not my intention when I weldet it up:smile: I mounted vibration dampers under the bedplate today and the they did their job fairly well when it comes to the vibrations. But as you mentioned I got some hassle with alignment. Not that the chain flew of or anything but the...

Yepp. I had no higher expectations on that test, but it was what I had at hand. I will try vibration dampers as soon as I get some, to see if it gets any better. I start to suspect the frame construction, mostly consisting of flat bar and L-profile. Maybe it's more prone to vibrate than a...

No crank wobble. I also tested revving the engine with the TC removed, having the same vibration at the same rpm.

I started out with the motor bolted right on the frame, then mounted rubber washers between motor plate and frame with no difference noticed.

Hello. I got a 5 hp flat head mounted on my Cushman airborne build. Just got the throttle wire and brake working the other day and took the first test drive only to discover a terrible vibration in the handlebars at mid rpm. At idle and higher revs it's fine but the mids are not fun. The briggs...

Yes. eBay is a good source for smaller items. But for let's say 25$ tire, the shipping is 45$.

Yes, a 5hp is certainly a better choise. I got one of those 5hp I/C from a leaf blower a some time ago, but it's dedicated for a Cushman airborne "look alike" kind of thing that I'm building from scratch. The 2hp was just something that I got real cheap and now trying to find a use for...

Problem is I live in Sweden and here minibikes are more or less non existing. Shipping + tax/customs for an old frame to Sweden will be expensive. I know those cheap bearings are crap, but they are easily swapped out for quality ones as they are standard metric size. The hubs are another story...

They are kind of rounded unfortunately. They are for use on small wagons I think.

The tires are 10" diameter, so they are just 2.5" bigger than a 60T sprocket, whitch leavs me with just above 1" ground clearence from the sprocket. That may be a problem, I don't know..

Ok, thanks. I found 4" whells that are approx 10" diameter in total(including tires). Will these work with a 60T sprocket and no jackshaft? According to my calculations I will get a speed of around 16 mph at 3000 rpm. By the way how much will these small briggs rev?

Hello. I recently bought an old (1968) 2 hp flat head Briggs on a local swap meet. It seems to be in good shape except for the gas tank, which has seen better days. Now I'd like to build something fun with it and I thought of a minibike. I don't know if the 2hp is strong enough though, what...