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  #8521  
Old 09-16-2015, 06:44 PM
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Davezilla Davezilla is offline
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Default Re: what did you do to your motorized bicycle today?

Got the new crank set for the mountain bike and no more interference problem with the sprockets hitting the frame... This set also has interchangeable sprockets so I'll be able to remove the ones I'm not going to be using since I'm setting this one up as single speed and will only be using the small sprocket so I'm going to remove the other 2 sprockets before locking this one down.
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  #8522  
Old 09-16-2015, 11:48 PM
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Default Re: what did you do to your motorized bicycle today?

i took it for a ride today and popped one of my new head bolts, it pulled out from the case luckily i still have the studs to put back in and they'll thread all the way in.
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  #8523  
Old 09-17-2015, 03:29 AM
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Default Re: what did you do to your motorized bicycle today?

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Originally Posted by tgaydos View Post
i've got a new magneto coming as that's the only thing i can think it is after having tested all the other things. mechanically it's fine and it's getting fuel, there's no way i burned up two plugs and two cdi's in the short time i've had the bike.

I got new hardware yesterday for the motor and i had a pain in the ass time trying to find the sizes, i ended up taking one of each bolt in to fastenal and get it matched up that way. Here's what i came up with for sizes and part numbers from fastenal. They're all hex cap screws.

Sprocket cover: m6-1.0 x25mm; pn 1139568
Clutch cover: m6-1.0 x20mm; pn 1139567
Case mount: m6-1.0 x35mm; pn 1139570
Magneto cover: m4-.70 x16mm; pn 2139526
Case bolt below the jug: m6-1.0 x40; pn 1139571
Head studs: m8-1.25 x90mm; pn 1139599

This is for my flying horse angle fire from bike berry.

This is why sick bike parts makes bolt kits Did you check to see who would be cheaper? All I can say is mine held together with a Hi Compression Puch head at about 11 to 1 compression instead of the stock 6.5 to 1. The head is one place you really need studs seeing as there is only 4.
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  #8524  
Old 09-19-2015, 11:09 AM
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Default Re: what did you do to your motorized bicycle today?

i quickly discovered that studs were needed, the bolts i had listed for the head were too short and pull out of the bottom end. luckily i was able to thread the studs back in and all's fine and dandy. these were from fastenal and i wanted to be able to look at and lay hands on the bolts before i actually confirmed that's what i wanted.
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  #8525  
Old 09-19-2015, 08:55 PM
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Default Re: what did you do to your motorized bicycle today?

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Originally Posted by tgaydos View Post
i quickly discovered that studs were needed, the bolts i had listed for the head were too short and pull out of the bottom end. luckily i was able to thread the studs back in and all's fine and dandy. these were from fastenal and i wanted to be able to look at and lay hands on the bolts before i actually confirmed that's what i wanted.
Yes studs are best hands down...
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  #8526  
Old 09-24-2015, 01:45 PM
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tgaydos tgaydos is offline
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Default Re: what did you do to your motorized bicycle today?

how do you guys deal with weather proofing your magneto? i'm coming into the rainy season in the PNW and it's my main mode of transportation, i don't want to have to spend the money to replace it every time i ride in the rain.

suggestions or links?
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  #8527  
Old 09-24-2015, 01:50 PM
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Default Re: what did you do to your motorized bicycle today?

i found some ideas, and will carry a piece of tarp with me to and fro.
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  #8528  
Old 09-24-2015, 08:25 PM
crassius crassius is offline
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Default Re: what did you do to your motorized bicycle today?

can't say for certain, but some folks use clear nail polish all along that cover seam
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  #8529  
Old 09-24-2015, 09:52 PM
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Default Re: what did you do to your motorized bicycle today?

ok so i take a tube of RTV and pack it into the wires coming out of the case till it pushes out of the wires at all the places in between the wires then i seal the gasket on the cover and add a desiccant pack from a new pair of shoes it absorbs the moisture and i put it at the back where there is room it absorbs the moisture that is made when it gets hot in there
and make sure its sealed i rode my bike all winter with no problems also put a on/off switch in the blue wire lines so you stop shorting out the mag coil
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  #8530  
Old 09-25-2015, 12:28 PM
crassius crassius is offline
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Default Re: what did you do to your motorized bicycle today?

didn't do anything yet - got critical appt at DR today & need to ride thru industrial area

last two times I tried, I got a flat each time & missed appt

not yet sure if I'll try it again : (
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