Installing a new right crankcase

Kenny_McCormic · Post by **Kenny_McCormic** » Tue Jul 10, 2007 7:41 pm

are you running with an air filter? Do you do plug chops reguraly? What kind of oil are you using?

my4sons · Post by **my4sons** » Tue Jul 10, 2007 8:10 pm

Looks like I maybe should have started a new posting, sorry.

Yes I'm running with an air filter, using 2 cycle engine oil and have never done a plug chop, haven't really had it in running condition long enough to have the opportunity, died on me after using it about 6 times after buying it last summer.

Kenny_McCormic · Post by **Kenny_McCormic** » Tue Jul 10, 2007 11:26 pm

does the oil say something about injection? if it doesnt then its probably too thick and not getting the engine the oil it needs.

my4sons · Post by **my4sons** » Wed Jul 11, 2007 7:51 am

I'm not sure (had one of my sons bring some 2 cycle oil home from the marina they work at - it's used for jet ski's/PWC's), but will cyphon the oil out and get new stuff, any brand recommendations? Thanks

KHPower · Post by **KHPower** » Wed Jul 11, 2007 8:24 am

I use the cheap 2 cycle from Walmart. Its called Supertech and I have never had a problem with it.

KHPower · Post by **KHPower** » Wed Jul 11, 2007 8:36 am

Would it be a good idea to clean the bearing in parts cleaner and then lube it up nicely?

Kenny_McCormic · Post by **Kenny_McCormic** » Wed Jul 11, 2007 3:37 pm

my4sons wrote:I'm not sure (had one of my sons bring some 2 cycle oil home from the marina they work at - it's used for jet ski's/PWC's), but will cyphon the oil out and get new stuff, any brand recommendations? Thanks

Thats called premix oil its too thick to work and will burn up the motor. You need 2 stroke injection oil get some from a honda dealer

jagojago · Post by **jagojago** » Wed Jul 11, 2007 5:17 pm

I say just bolt in the motor I sold you and see if it starts up

KHPower · Post by **KHPower** » Wed Jul 11, 2007 6:48 pm

I probably will.

The peices fit like a charm but I ran into a BIG problem. The bearing in the new right side case is too big and my original bearings are on the crank. I dont know what to do , so I am probablly going to go to a place called Presision and get the right bearing and have them remove the old one off the crank.

jagojago · Post by **jagojago** » Wed Jul 11, 2007 8:05 pm

Any local machine shop should do it for $5-$10.

KHPower · Post by **KHPower** » Thu Jul 12, 2007 12:32 pm

I called the machine shop and they can probably help me with the bearing , but the guy I talked to on the phone said they couldnt remove it , but Ill ask when I bring the motor in , or else I have to go to our local Harbor freight and drop 50 bones for a bearing puller

HuskieMobileMan · Post by **HuskieMobileMan** » Thu Jul 12, 2007 2:09 pm

KHPower wrote:I called the machine shop and they can probably help me with the bearing , but the guy I talked to on the phone said they couldnt remove it , but Ill ask when I bring the motor in , or else I have to go to our local Harbor freight and drop 50 bones for a bearing puller

You should be able to get a jaw puller pretty cheap at a car parts store. Or rent one at autozone.

KHPower · Post by **KHPower** » Thu Jul 12, 2007 4:03 pm

A jaw puller will not work due to how far it is down the crankshaft, the claws will not slide under so you basicly need a bearing puller.

I went to the bearing shop and they did not have anything in their library of bearings that would fit my crank , so I went to a machine shop and they are gonna fashion a sleve onto my new crankcase to accept the orinal bearing size. I guess I could of ordered a new crankcase half but I figured I might as well just use what I got and stray away from any more problems. Once I get the case back and attach it I will be off and riding. I had it running yesterday and noticed that the flywheel was off balance and rubbing, thatss when I new the original bearing for my crank would not work with the new case.

Although I have put alot of coin down to repair this scoot , its alot cheaper than the shop considering all of the parts I have added whole new kickstart assembly,electric starter ,engine fairings,bolts,flywheel fan and crankcase + labor around 600.00 bones for a shop repair

HuskieMobileMan · Post by **HuskieMobileMan** » Thu Jul 12, 2007 4:25 pm

KHPower wrote:A jaw puller will not work due to how far it is down the crankshaft, the claws will not slide under so you basicly need a bearing puller.

I went to the bearing shop and they did not have anything in their library of bearings that would fit my crank , so I went to a machine shop and they are gonna fashion a sleve onto my new crankcase to accept the orinal bearing size. I guess I could of ordered a new crankcase half but I figured I might as well just use what I got and stray away from any more problems. Once I get the case back and attach it I will be off and riding. I had it running yesterday and noticed that the flywheel was off balance and rubbing, thatss when I new the original bearing for my crank would not work with the new case.

Although I have put alot of coin down to repair this scoot , its alot cheaper than the shop considering all of the parts I have added whole new kickstart assembly,electric starter ,engine fairings,bolts,flywheel fan and crankcase + labor around 600.00 bones

Make your own tool to pull them off. Get a timing gear puller ($15) and a thick plate of metal and a couple of long bolts (5/16 bolts should work). Drill a couple of holes in the metal to put the bolts through and attach with 2 nuts each and cut a slot for where the cranshaft will fit through in the middle of the metal. Slip it under the bearing on the cranshaft and torque down till it comes off. Kina like this tool:

KHPower · Post by **KHPower** » Thu Jul 12, 2007 5:21 pm

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 ?