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Hubs, Gearboxes, Sprockets and Chains Can't find 'em, grind em - hubs and transmissions, problems and modifications to make you run smooth and trouble free

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  #11  
Old 04-20-2017, 06:43 PM
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outlawbiker outlawbiker is offline
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Default Re: Fat Tire Bottom Bracket Blues

I just got done looking at the parts, i get it now! i didnt look at them the first time around. but now i cant get the cartridge out to put all the stock crank back in. Its so tight im standing on the wrench with the cartridge removal tool and it wont budge. its not offten i tear into these things,which way to these loosen?

Left is loose on these? or is it right is loose?

EDIT: Right is loose on that side, what a fight it gave me. now how the **** do i get the freewheel adapter out of the freewheel so i can screw on the crank arm?
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Last edited by outlawbiker; 04-20-2017 at 08:20 PM.
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  #12  
Old 04-21-2017, 09:56 AM
KCvale KCvale is offline
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Default Re: Fat Tire Bottom Bracket Blues

Correct, you don't need the 4-stroke adapter, with the stock Slugo BB shaft in the you can screw the FW right onto the right pedal.

Quote:
Originally Posted by outlawbiker View Post
EDIT: Right is loose on that side, what a fight it gave me. now how the **** do i get the freewheel adapter out of the freewheel so i can screw on the crank arm?
With the freewheel removal tool.



http://sickbikeparts.com/freewheel-removal-tool/

Use it to hold the freewheel from spinning while you unscrew the adapter from it.
Then you can use the straight crank arms and not those funky wide Z crank arms too.

While you are at it you really might want to think about painting the shift kit base parts black to match the bike as it looks a little silly beige ;-}

And don't forget, you need to drill new mounting holes in the 4G, you tilt it up so your left pedal clears it by just going under it.





That is pretty tricky to do... you'll want to make a template of the bolt pattern by tilting the 4G up until the left chain is tight.

You will also need to mount a chain tensioner on the back of the engine mount plate, a slot works great.



The stock exhaust won't fit and you don't want either but if you use a non EPA 2-stroke like I did you need to a cut/weld on it so the right pedal won't hit it.

I told you it was tricky but you can turn a Slugo fat tire into a 7-speed dual disc shifter ;-}
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Last edited by KCvale; 04-21-2017 at 10:57 AM.
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  #13  
Old 04-21-2017, 12:31 PM
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outlawbiker outlawbiker is offline
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Default Re: Fat Tire Bottom Bracket Blues

thanks KC, this was my first shift kit, so after discovering my mistakes, i feel like an idiot, cant believe i over looked the threaded crank arm + freewheel. think i made more of a fool out of myself than i got accomplished on this build,ha!

Yea,im gonna paint the parts later, i was just trying to get everything to work first,then pull it all apart then paint and reassemble. If you could tell, i got the matte black slugo to give it that more "rat rod" look, so ill do up the shift kit the same.

Im really fighting hard to leave the trans in the same spot,i dont want any more aggravation with this project,but ive got a super wide angled crank arm for that side that may look stupid but will save me time and anger over looks. If i get a little more adventurous or disgusted enough with my lazyness and half assedness ill attempt the same trick you did.

For the little time that i did have this bike running and trying to learn how to shift was amazing,its like nothing else in the motorized bicycle world ive driven in the past 10 years, floats down the road like a 70's caddy, having disc brakes on a motorized bicycle are amazing too! This really feels like a great bike. Only other thing is, i think the clutch engages at too high of an RPM,its really screaming before it "hooks up",ill have to look into that,and the first 3 gears seem to go by very quick,like i dont even need them, i could start in 4th or 5th and the bike pulls fine off the line,I dont know, im still trying to get used to the gearing.
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  #14  
Old 04-21-2017, 02:18 PM
KCvale KCvale is offline
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Default Re: Fat Tire Bottom Bracket Blues

Quote:
Originally Posted by outlawbiker View Post
thanks KC, this was my first shift kit, so after discovering my mistakes, i feel like an idiot.
Don't feel that way...
I hand already built ~Dozen shifters before I took on the Slugo and knew all the parts and how to use them.

Quote:
Im really fighting hard to leave the trans in the same spot,i dont want any more aggravation with this project,but ive got a super wide angled crank arm for that side that may look stupid but will save me time and anger over looks. If i get a little more adventurous or disgusted enough with my lazyness and half assedness ill attempt the same trick you did.
It will look and feel silly but will work just fine.

Quote:
...and the first 3 gears seem to go by very quick,like i dont even need them, i could start in 4th or 5th and the bike pulls fine off the line,I dont know, im still trying to get used to the gearing.
Jump gears shifting, like just using even numbered gears as the bike is geared for people power, your engine doesn't need all those gear steps.

Yes, gears change everything, once you learn to operate it you'll never want to go back to direct drive again ;-}
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  #15  
Old 04-21-2017, 08:37 PM
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outlawbiker outlawbiker is offline
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Default Re: Fat Tire Bottom Bracket Blues

ugh! i got it all back to stock, went to a bike shop and they backed out the freewheel adapter for free,then the bolts that hold the 2 sprockets and freewheel are too long,they are hitting the frame when i put the crank arm with the freewheel on. so i turn em around and the socket heads are now inside,facing the frame,no problem,ive got clearance now, i go to throw the nut on to tighten the crank arm on and it bottoms out the crank arm on the frame and can no longer spin.but the freewheel can.

cant put spacers on, it would cause the same thing, cant slide a bearing on,would cause the same thing, i dont know how KC did his,im lost,yet again.
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  #16  
Old 04-22-2017, 03:42 AM
5-7HEAVEN 5-7HEAVEN is offline
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Default Re: Fat Tire Bottom Bracket Blues

From the first picture, it seems you need a wider bottom bracket.

In the second picture, it seems you need to have the socket heads facing out. If the bolts are too long, find shorter ones or trim to fit.

You could also clearance the pedal arm, where it contacts the nuts.

If you mount the sprocket on the inside of the freewheel, ya might not have to clearance the pedal arm.

That is after you trim the bolts a few mm.
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  #17  
Old 04-22-2017, 09:55 AM
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outlawbiker outlawbiker is offline
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Default Re: Fat Tire Bottom Bracket Blues

its soooooo close to working,its just the mater of like 1/8 of an inch that the whole thing presses to far on the shaft when i tighten up on the axle nut that keeps the arm from falling off the shaft.

Ive tried to run thru this in my head all night in bed, how can i get a spacer between the bearing cup,and the inside face of the crank arm and i cant think of anything because no mater what i put in between,its still going to pinch and cause the crank arm to lock up.

the only thing i didn't try was mounting the freewheel under the big sprocket like KC did, i didn't notice that till last night when i was trying to play detective and magnifying all the photos of his build. I dont know if that would make a difference.

I can only hope that KC,the master of the slugo,can teach me his ways!

EDIT: I shouldnt say its just the crank arm pinching or binding up, it could also be the inside face of the freewheel that doesn't spin also that could be making contact with the bike. If it was just the crank arm i could unscrew it,grind off the 1/8 or 1/4 inch of material on it to give me that clearance i need, but im not sure what is making the contact.

EDIT #2: Maybe i can mill out the material where the nut meets with the square hole in the crank arm,like counter sinking it,so the nut doesn't have so much room to tighten,so it doesn't push it all the way on the shaft creating that pinch.

Last edited by outlawbiker; 04-22-2017 at 10:29 AM.
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  #18  
Old 04-22-2017, 10:39 AM
KCvale KCvale is offline
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Default Re: Fat Tire Bottom Bracket Blues

Quote:
Originally Posted by outlawbiker View Post
I can only hope that KC,the master of the slugo,can teach me his ways!
You assembled you freewheel dual sprocket combo wrong.

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Last edited by KCvale; 04-22-2017 at 10:44 AM.
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  #19  
Old 04-22-2017, 12:23 PM
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outlawbiker outlawbiker is offline
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Default Re: Fat Tire Bottom Bracket Blues

yea, i had to reverse the bolts to face the outside so the bolts didn't hit the frame.

EDIT, ill try to do it the other way,like yours,where the freewheel is mounted on the other side
,there was a couple clearance issues that i didn't take into effect

EDIT #2. said screw it, i took the sprockets off and only left just the freewheel and crank arm, slid that on the shaft and tried tighten it up with the axle nut,and sure enough, its the freewheel thats rubbing, the only thing i cant do is try to hog out the back of the freewheel where the 4 indents are for the tool to unscrew it,ill hog it out with a dremel or something to get it to clear the bottom bracket/bearing cup

Last edited by outlawbiker; 04-22-2017 at 01:38 PM.
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  #20  
Old 04-22-2017, 07:40 PM
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outlawbiker outlawbiker is offline
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Default Re: Fat Tire Bottom Bracket Blues

i fixed it! i had to grind the crap out of the back of the freewheel so it would clear, just got back from a test drive. it feels like its surging,dont know if its the carb or the clutch slipping. i think i got a bad clutch or its just not ment for this set up.
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