Installing a new right crankcase

HuskieMobileMan · Post by **HuskieMobileMan** » Fri Jul 13, 2007 10:47 pm

KHPower wrote:I may do that , good idea.

I was planning on just leaving the bearing sit on the crank and when my part is ready (crankcase w/new sleave) pound it gently on there because thats where the bearing is gonna end up anyway regard less if I remove it.

Good idea? not sure ?

Worth a try.

KHPower · Post by **KHPower** » Sun Jul 15, 2007 4:34 pm

I was reading up on the service manual for the SA50 and it says :
" When the bearing is on the crankshaft spin the bearing outer and check for smooth and quiet spinning" So basicly from my readng its ok if it is left on there.
And I did that and it seems ok to me , also it says to use the Honda injector oil for lube. I put some 30 w on the components and ran it for awhile and there was tons of smoke , thankfully I only let it run a short while

KHPower · Post by **KHPower** » Thu Jul 19, 2007 10:37 pm

Update.......

Tuesday I got the right crankcase back from the machine shop and they did a wonderful job! I then woke up early on Wednesday and went straight to the garge to work on the bike. I also picked up some Honda GN2 to run in the motor. I lubed up all the parts.bearing,piston,crank and the case. I slid the case on and with a little tapping and adjustment and it went on perfectly! Put in all the bolts and cleaned it up , put some of the re-conditioned parts I required off of the motor I purchased(Starter motor,flywheel,stator) Cleaned and lubed them up to new looking condition. Mounted the motor added fuel and the GN2 and after about a few kicks and some help with the electric start I got it purring again

Now it rides so smoothly and starts on the first kick or push start.
I took it for a long ride to get some of the fluids flowing and everything seems to be going great.

The only thing that is bothering is , I adjusted the throttle screw really low at first so It would run , just not hard , pretty much the lowest you could go without the bike shutting off and it did a few times and then it took awhile to start after upping the idle screw. Now I have a little spin in the tire when idleing but if that is all I need to keep it started and running I will be fine , unless anybody has any suggestions?

Also My airsrcew is set at 1 7/8 turn , so almost 2 full turns and it seems to be ok , its what the Haynes scooter book said for my scooter , I would also appreciate advice on maybe a different setting if there is a better setting.
I got good handling(no shaking like before because the unmounted muffler to the case) , no noises and after adding the GN2 it actually runs smoother

And when I had it on full throttle I felt like I was going the 38mph as the bike is designed to do , maybe even faster.

All in all , I am happy I did this rebuild myself and am glad I bought the parst motor , Great learning experience and the payoff feels real good when the scoot fires up and purrs ! Also I fixed my stripped kickstart and lubed it up and its like butter kicking it , barely and resistance

Thanks everyone for all the advice

I will share some photos tommorrow

Feel free to help me out on the idle and airscrew

jagojago · Post by **jagojago** » Thu Jul 19, 2007 11:05 pm

Glad to hear everything worked out for you

HuskieMobileMan · Post by **HuskieMobileMan** » Fri Jul 20, 2007 9:13 am

Nice job!