Motorized Bicycle Engine Kit Forum - Motorized Bicycle General Discussion http://motorbicycling.com Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles en Fri, 20 Nov 2009 21:46:02 GMT vBulletin 60 http://motorbicycling.com/images/styles/silverblue/misc/rss.jpg Motorized Bicycle Engine Kit Forum - Motorized Bicycle General Discussion http://motorbicycling.com Sixsaicasep OMAZvsdf http://motorbicycling.com/showthread.php?t=13119 Fri, 20 Nov 2009 21:41:22 GMT We are sorry but to help combat spam you cannot post links until you become an active member of the forum. We are sorry but to help combat spam you cannot post links until you become an active member of the forum. ]]> Motorized Bicycle General Discussion NecyDarcare http://motorbicycling.com/showthread.php?t=13119 Antique Motorised Bicycle http://motorbicycling.com/f3/antique-motorised-bicycle-13115.html Fri, 20 Nov 2009 14:21:59 GMT I saw this bike on craigs list,check it out if you like old motor bikes chicago.craigslist.org/wcl/atq/1473950016.html]ANTIQUE MOTORISED BICYCLE[/url] .wee. ]]> Motorized Bicycle General Discussion Hot Wheels http://motorbicycling.com/f3/antique-motorised-bicycle-13115.html What is the most comfortable bike seat for tender tuberosities? http://motorbicycling.com/f3/what-most-comfortable-bike-seat-tender-13113.html Fri, 20 Nov 2009 11:41:32 GMT The seat that came with the mountain bike gave me a tender posterior. I replaced it with a wide padded seat from an exercise bike. It is much better. But is there any bike seat that causes *no* pain at all? Are any of these new types any good? Image: http://www.jimlangley.net/crank/seat_spongy_mk9.jpg Image: http://www.jimlangley.net/crank/seatrealseat_sm.jpg Image: http://chagalo.org/Bike/EasySeat.jpg The seat that came with the mountain bike gave me a tender posterior. I replaced it with a wide padded seat from an exercise bike. It is much better.

But is there any bike seat that causes no pain at all?

Are any of these new types any good?





]]> Motorized Bicycle General Discussion mifletz http://motorbicycling.com/f3/what-most-comfortable-bike-seat-tender-13113.html Mini Chopper http://motorbicycling.com/f3/mini-chopper-13112.html Fri, 20 Nov 2009 09:29:08 GMT I just got this 110cc 4 stroke 4 speed pocket bike motor for my mini chopper.
all i got was the engine, no carb/exhaust or electronics outside of the starter and regular wires from the motor.

I was wondering if i could use my electronics (CDI, ignition box, etc.), carb & intake manifold from the 50cc engine currently on it. I havef looked at many of the electronics online for this engine and it seems like the electronics for the 50cc engines are good up to 125cc.

anyways i dont know much about this motor other then i google to model number stamped into it beneith the shifter (XYA152FMH-050307472) and everything points in the direction of it being 110cc and powerful.

any information about this engine would be greatly appreciated. As well as does it charge a battery and top speed.

will post pics as soon as i can



edit: the port sizes on the head appear to be the same. ]]> Motorized Bicycle General Discussion moosinatrix http://motorbicycling.com/f3/mini-chopper-13112.html Schwinn Occ http://motorbicycling.com/f3/schwinn-occ-13109.html Fri, 20 Nov 2009 07:21:17 GMT Hey yall,
Got my engine in the mail yesterday and waiting to get my engine mount from barry once it is here the building and moddifying process may begin, but I have read about these sproket adapter for the schwinn occ, are they realy needed?, or is there ways to work without the adapter?, cause I dont realy want to keep spending money as postage to Australia isn't exactly cheap. I haven't started the build so I wouldn't know if there sproket wasnt fitting right.

Help would be appericiated, Im excited for the buildauflg ]]> Motorized Bicycle General Discussion crossi http://motorbicycling.com/f3/schwinn-occ-13109.html <![CDATA[Cranbrook won't stop!!]]> http://motorbicycling.com/f3/cranbrook-wont-stop-13107.html Fri, 20 Nov 2009 05:21:01 GMT I'm disappointed with the stopping power of the front side pull brake I put on my Cranbook. The wheel has the stock alloy rim and the brake is adjusted properly but the pads just don't grab well. I've tried different pads from a Specialized I have that work fine on it but still seem to slide on this wheel. Is it the metal/surface?

I don't really want to depend on the coaster brake. Anyone else with a similar problem? Thoughts or suggestions?

dnut"I don't need brakes!" ]]> Motorized Bicycle General Discussion stilldoc http://motorbicycling.com/f3/cranbrook-wont-stop-13107.html Which do u think would be a better buy...? http://motorbicycling.com/f3/do-u-think-would-better-buy-13105.html Fri, 20 Nov 2009 03:19:34 GMT See attachments.
Spec: They're both 4 stroke @ 31cc... so they don't have much.

The chain must be heavier than the belt, plus the chain has a pully eating some power.

Thanks.
Attached Thumbnails
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]]> Motorized Bicycle General Discussion rayone http://motorbicycling.com/f3/do-u-think-would-better-buy-13105.html How to eliminate clutch noise http://motorbicycling.com/f3/how-eliminate-clutch-noise-13104.html Fri, 20 Nov 2009 03:13:34 GMT Hello Forum Members, I just want to know how to eliminate clutch noise? or is it noise coming from clutch? if not what is it? Please see the Video, YouTube - Felt Bike first install (http://www.youtube.com/watch?v=pFy_GAyPNL8) Hello Forum Members,

I just want to know how to eliminate clutch noise? or is it noise coming from clutch? if not what is it?

Please see the Video,

YouTube - Felt Bike first install ]]> Motorized Bicycle General Discussion Kevron99 http://motorbicycling.com/f3/how-eliminate-clutch-noise-13104.html Ran out of gas for the first time.... http://motorbicycling.com/f3/ran-out-gas-first-time-13101.html Fri, 20 Nov 2009 02:10:02 GMT Something isnt right here....My tank was almost full and I drove 25 miles today and was in a hurry to get to a store before they closed,well on the way back the engine just died and I stopped and looked down at the wires and noticed the gas line was empty,empty I say....Well atleast I only had to pedal for a mile....Do most of you only get around 30 to 35 miles to a 1/2 gallon tank???? John-John Something isnt right here....My tank was almost full and I drove 25 miles today and was in a hurry to get to a store before they closed,well on the way back the engine just died and I stopped and looked down at the wires and noticed the gas line was empty,empty I say....Well atleast I only had to pedal for a mile....Do most of you only get around 30 to 35 miles to a 1/2 gallon tank????
John-John ]]> Motorized Bicycle General Discussion fall_down_stand_up http://motorbicycling.com/f3/ran-out-gas-first-time-13101.html Past the power curve ? http://motorbicycling.com/f3/past-power-curve-13099.html Fri, 20 Nov 2009 00:03:10 GMT I've got a stinger sd"80cc" motor on my board tracker. Have run about a gallon of gas through it @16 to 1.I just swithched to synthetic motorcycle racing oil @ 50 to 1. Engine makes real good power under load but when bike is atwide open throttle and cruising ti kind of fallsoff and surges . throttleback and put load on it pulls hard again. I have 44 tooth sprocket. Should I goto a smaller rearsprocket to keep it in the power band better. My friends bike with 80cc slanthead motor and I think36 tooth rear sprocket seems to pull all the time even at cruise wide/open. Plug is fresh ngk and nicegrey/tan color after hard run. Anythoughts ]]> Motorized Bicycle General Discussion rob king http://motorbicycling.com/f3/past-power-curve-13099.html Less than 9 tooth drive sprocket? http://motorbicycling.com/f3/less-than-9-tooth-drive-sprocket-13097.html Thu, 19 Nov 2009 22:59:15 GMT Hey, Has anyone seen a web site that sells a drive sprocket that has less than 9 teeth? The reason I want to know is because I want to give my bike some more torque for hills by downsizing the engine sprocket, but the smallest one I can find is a 9 tooth and I dont know how much difference a 9 will make, rather than a ten If there is a site out there that sells a less than 9 tooth drive sprocket...please share! Thanks a mil! Hey,
Has anyone seen a web site that sells a drive sprocket that has less than 9 teeth?

The reason I want to know is because I want to give my bike some more torque for hills by downsizing the engine sprocket, but the smallest one I can find is a 9 tooth and I dont know how much difference a 9 will make, rather than a ten

If there is a site out there that sells a less than 9 tooth drive sprocket...please share!

Thanks a mil! ]]> Motorized Bicycle General Discussion Bikewithamotor http://motorbicycling.com/f3/less-than-9-tooth-drive-sprocket-13097.html 9 tooth drive sprocket (or less?) http://motorbicycling.com/f3/9-tooth-drive-sprocket-less-13096.html Thu, 19 Nov 2009 22:53:54 GMT Hi Guys...little dilemma, you know how the sprockets that the engine kit comes with are a little slow with hills...(44 tooth rear sprocket, 10 tooth drive sprocket) So....heres what I am wondering... If I replace the 10 tooth drive sprocket for a 9 tooth, how much easier could I go up hills? would it make much of a difference? Is it worth it to buy it? Thanks loads Hi Guys...little dilemma, you know how the sprockets that the engine kit comes with are a little slow with hills...(44 tooth rear sprocket, 10 tooth drive sprocket)

So....heres what I am wondering...

If I replace the 10 tooth drive sprocket for a 9 tooth,
how much easier could I go up hills?
would it make much of a difference?

Is it worth it to buy it?

Thanks loads ]]> Motorized Bicycle General Discussion Bikewithamotor http://motorbicycling.com/f3/9-tooth-drive-sprocket-less-13096.html drive gear nut? http://motorbicycling.com/f3/drive-gear-nut-13091.html Thu, 19 Nov 2009 17:37:41 GMT anyone ever find a replacment for the nut holding the drive gear to the crankshaft? anyone ever find a replacment for the nut holding the drive gear to the crankshaft? ]]> Motorized Bicycle General Discussion october_32 http://motorbicycling.com/f3/drive-gear-nut-13091.html Im going to run a NGK B5HS spark plug.... http://motorbicycling.com/f3/im-going-run-ngk-b5hs-spark-13087.html Thu, 19 Nov 2009 16:15:15 GMT It will run hotter....Im running a NGK B6HS right now....oppinions???? John-John.shft. It will run hotter....Im running a NGK B6HS right now....oppinions????
John-John.shft. ]]> Motorized Bicycle General Discussion fall_down_stand_up http://motorbicycling.com/f3/im-going-run-ngk-b5hs-spark-13087.html 80cc powerking motor 30km/h top speed http://motorbicycling.com/f3/80cc-powerking-motor-30km-h-top-13084.html Thu, 19 Nov 2009 06:54:28 GMT Alright so I got 67cc/80cc motor from powerking at ebay engines great slow for the break I ran 16:1 for 4 tanks peak 2 stroke oil kinda crap but ran good alright the problem it was ok for it to be slow in a break in period it struggle to get to around 30km/h normal after about 200 miles it's the same I'm now running high quality am sol oil it hits 30km/h pretty fast lots of power except thats all it has to give when I open the throttle it goes then power is gone for 1 second then comes back and so forth I barley got it to 40 yet my new 49cc I got is silky smooth and fast very fast best engine I had yet and I mean no vibrations nothing. The 80cc engine is struggling for air or gas I checked for air leaks I change the gasket and used rtv blue seal left it for 24hr still the same I ported and polish the exhaust header and port still no power on the top end I'm going I checked the intake and see if the jet is clogged the spark plug is black same as the other one ngk brand and ngk boot brand new cdi box I just don't understand whats wrong I figure it might be the carb I'm gonna take it apart tomorrow and see whats wrong but some help would be appreciated it losses power on top end only going past 30 it struggles really struggles thanks again guys. ]]> Motorized Bicycle General Discussion AnthonyX99 http://motorbicycling.com/f3/80cc-powerking-motor-30km-h-top-13084.html