Honda Spree and Elite 50 Forums

When I was in high school, I had a 2000 Honda elite sr50 with a 72cc and a 28mm carb. At the time I was about 350lbs doing 60mph. Those where some good times.

Had some extra cash, so I was able to purchase a 2001 Honda elite s with a stroker motor. I'm not to sure the size of the piston but for sure its a stroker from what I was told. As I was riding the other day, I heard a rattling sound coming from the motor, yet as I proceeded to open up the bike (full throttle) that rattling sound went away. I watched the temp gage and made sure it didn't get above 350. As I slowed down to take the turn, I notice the sound was over powering my exhaust pipe (brand new pg) which made me scared, so I quickly shut my bike down and walked it home. Got home; opened the kicker cover and took off my belt. Initially I thought it was a washer I forgot to put back in when I changed the weights. My buddy double checked my work and made sure all washers was accounted for. When I went to wiggle the the crank shaft, I noticed that it had a lot of play. My buddy explained that the rattling sound I was hearing was from my crank shaft bearings which needs to be replaced.

So thats where I'm at. I got the bug, and my mechanic skills are not up to par. My buddy will help me project it out. Keep you guys updated.

Greetings:

Sorry to hear of your malfunction. Separating the cases is necessary, and your skilled friend will find numerous examples of the puller assembly that's needed to perform the task in the Tech Docs if he doesn't already know how to do it. Normally the bearings will stick to the crankshaft, and if so a bearing separator is used to pry them off. However burned-out bearings are unpredictable. I had one engine where the bearing inner race was literally welded to the crankshaft. This necessitated a very carful, surgically precise Dremel cutting wheel to split the race into halves - being careful not to cut into the crankshaft's machined surface - and a chisel to knock them off. Do let us know how it goes. Pics of the process can teach others what to do and what to avoid...

Center stand against the pipe. The bearings would have exploded by now if you had THAT much play in them. By all means, investigate the lower-end. I was just throwing out another possibility.......

My new sa/05 motor is making a funny noise down low too. Not a rattle but like a bad bearing, like a loud whirring/grinding. No crankshaft play tho...

Thank to all who chimed in.

Update: 1

It's was not a stroker motor, I brought. It was a corsa 72cc. One of the ears on the bore for the exhaust screw was chipped off, so I replaced it with another 72cc corsa (brand new) also the block that I brought with the block had a crack in it by the ear motor mount. I attempted to have my uncle weld it but after two attempts I decided to replace that as well. Now I got a sym block (from Craigslist/ it came with a sef mini stroke crank) with a corsa 72cc and a long pg. bike goes 70 with me on top and I weight 400 pounds.

Scoot808 wrote: bike goes 70 with me on top and I weight 400 pounds.

pics or it didn't happen

Idk that seems sketchy, 70 at 400lbs thats a hard feat, unless you have had an expert tune your bike for you the average joe isnt gonna milk 70 out of it. I mean its possible, ive just heard too many people claim that. I know one thing for certain though, the pg short will get you to 30mph in under what feels like maybe a secound. Scary s***

The 70mph I can believe...the 400lb rider is also very possible....put both of those together and you better call Ripley's

down a mountainside with a hurricane tailwind........

bonesv wrote:down a mountainside with a hurricane tailwind........

Maybe these hurricane winds helped.

Our Category 4 will be here at 2am and ill post results!

The guy n this video is pretty big and his bike seems to be doing ok.
https://youtu.be/qCmS1jXGCcc
There are alot of stories of fast bikes from down there, maybe it's the moist air allowing them to lean out there motors like water injection. Or maybe it's just that people have been building fast scooters down there alot longer than we have here on the mainland. Experience does count for something.

I actually really enjoyed that video haha!

I know right?? Dude can wheelie haha

Wonder why Hawaii outlawed scooters...