butre
Well-Known Member
that's probably every bit as strong as it was when you got it. u-bolts are strong enough to hold axles in place, why not other parts?
Ain't many things take a beating like a axle tied to a leaf spring on a 4x4, and they hold for longer than the engines use to last.that's probably every bit as strong as it was when you got it. u-bolts are strong enough to hold axles in place, why not other parts?
Well I'm really really hoping that's true, since it's my ass that's going to be on the seat lol...that's probably every bit as strong as it was when you got it. u-bolts are strong enough to hold axles in place, why not other parts?
Beach cruisers seem to fit that BT80 elegantly, the issues are they just plain don't fit together well, the jackshaft and the motor that is.
The rear mounting bolts don't line up with the holes in the plate or the jackshaft. I think the backing plates which are for support and reinforcement on a standard kit can be skipped in this instance since the rear mount has a large surface area that has the 4 bolts, since I can use 4 of them to make the connection (may use just 3 and depend partially on the upper jackshaft bracket bolt point) and the surface area is so large and that I worked it flat with file in a few places to get the jackshaft as centered as possible on the rear of the motor (not a super huge deal on a jackshaft of course, and especially not so with my out of the ordinary downtube modification.)
I have an odd plate that clamps the jackshaft down and also acts as an alignment type plate by preventing horizontal movement. It works well at this stage, and with a bit of locktite I would say it should hold just fine as long as I make sure parts are fitting truly (like no edges turned up from grinding making a false seat) then I should be ok.
Now that would be the case in a very tight frame for the motor, so I wanted to use the minimal number of links on the output from the motor, which appears to just barely fit 15 like a standard kit set up. Certainly if you had an extra 6 inches of room in a beach cruiser you could make an adapter block from solid aluminum with countersunk bolts to adapt the rear mounting points to an appropriate jackshaft bracket. It would simply mean using more than 15 links on the left side but would be a lot less of a hassle.
I would put pictures up but I'm going to work soon so no time for taking the bolts out of the motor to get the jackshaft apart, but I'll do it another time when I get the chance.
Beach cruisers seem to fit that BT80 elegantly, the issues are they just plain don't fit together well, the jackshaft and the motor that is.
The rear mounting bolts don't line up with the holes in the plate or the jackshaft. I think the backing plates which are for support and reinforcement on a standard kit can be skipped in this instance since the rear mount has a large surface area that has the 4 bolts, since I can use 4 of them to make the connection (may use just 3 and depend partially on the upper jackshaft bracket bolt point) and the surface area is so large and that I worked it flat with file in a few places to get the jackshaft as centered as possible on the rear of the motor (not a super huge deal on a jackshaft of course, and especially not so with my out of the ordinary downtube modification.)
I have an odd plate that clamps the jackshaft down and also acts as an alignment type plate by preventing horizontal movement. It works well at this stage, and with a bit of locktite I would say it should hold just fine as long as I make sure parts are fitting truly (like no edges turned up from grinding making a false seat) then I should be ok.
Now that would be the case in a very tight frame for the motor, so I wanted to use the minimal number of links on the output from the motor, which appears to just barely fit 15 like a standard kit set up. Certainly if you had an extra 6 inches of room in a beach cruiser you could make an adapter block from solid aluminum with countersunk bolts to adapt the rear mounting points to an appropriate jackshaft bracket. It would simply mean using more than 15 links on the left side but would be a lot less of a hassle.
I would put pictures up but I'm going to work soon so no time for taking the bolts out of the motor to get the jackshaft apart, but I'll do it another time when I get the chance.
I came across this today
Electric start 66cc 2 stroke kit engine looks like a chainsaw motor mixed with a china girl and the mounts are promising double studs front and back
Whos gunna try it first
http://www.bikeberry.com/66-80cc-bullet-train-electric-start-engine-kit-silver.htmlView attachment 72204
I'm happy to hear that news!I have a few friends that have already bought this motor and say it's 100% more reliable even in cold temperatures. Includes a pull start in case battery or cylinder goes out. Also includes a wide crank assembly as well. I've ordered mine already really looking forward to it. Also have got an entire lighting system hooked up that will connect to extra battery auxiliary plug.
Sorry I took so long to reply about this plate I've been busy and the day I wanted to upload these pics the site was giving me trouble letting with uploading AND making replies on the forum lol..So I’m a little lost on the ‘odd plate’ part, but beside that I think what I got was that contrary to a typical 66cc, whose mount on the seat downtube would be the one, two bolt bracket...the bt80 has a larger surface area and thus 4 bolts would mount. This being the case, you’re not as concerned with the awkward mounting because you have such a large surface area making contact, and room to play with mounting it (engine surface area wise). And also, that given the space that a beach cruiser has, bike length wise (tire to tire, inside the V for mounting) you would just add an aluminum ‘bolt mounting adapter plate’ to accept both the bt80 stock holes, married to the jackshaft forward mounting stock holes.
I have a few friends that have already bought this motor and say it's 100% more reliable even in cold temperatures. Includes a pull start in case battery or cylinder goes out. Also includes a wide crank assembly as well. I've ordered mine already really looking forward to it. Also have got an entire lighting system hooked up that will connect to extra battery auxiliary plug.
I have a few friends that have already bought this motor and say it's 100% more reliable even in cold temperatures. Includes a pull start in case battery or cylinder goes out. Also includes a wide crank assembly as well. I've ordered mine already really looking forward to it. Also have got an entire lighting system hooked up that will connect to extra battery auxiliary plug.