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  1. #46
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    After scouring the internet for the rest of the pull start components I found out it was another 300 bucks in parts. I decided to make my own... here's one of the two parts needed.

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  2. #47
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    I am willing to drive 10 hours round trip, to ride this upon completion.

    Get a tach mounted, I will pull my gear and pin this thing. I really want to build one now. Polini and BZM engines, being case reeds, have their own look. This piston port monster carries the same structure as ped engines, very appealing.
    Hell Fab

  3. #48
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    Quote Originally Posted by Depths of Hell View Post
    I am willing to drive 10 hours round trip, to ride this upon completion.

    Get a tach mounted, I will pull my gear and pin this thing. I really want to build one now. Polini and BZM engines, being case reeds, have their own look. This piston port monster carries the same structure as ped engines, very appealing.
    You sir are more than welcome. But I gotta tell ya... I've never been this afraid of an engine before.


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    dfl18 (01-20-2017)

  5. #49
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    $$$$...................yeah!

    Thats hardcore, sounds gnarly. 😲
    Hell Fab

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    dfl18 (01-20-2017)

  7. #50
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    That thing sounds mean bro, just curious, if you were to mount this to a gsr, dont you think it would put a little too much weight on the tabs on the frame that hold the engine mount on, the engine weighing in at 21 lbs?

  8. #51
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    "Sounds like a dirtbike!" Yeah, not far from it! 100cc is no joke. Good luck with your build.
    MB Products | Coast Ped Crew
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    CaliusOptimus (12-17-2016),dfl18 (01-20-2017)

  10. #52
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    Quote Originally Posted by displayking View Post
    That thing sounds mean bro, just curious, if you were to mount this to a gsr, dont you think it would put a little too much weight on the tabs on the frame that hold the engine mount on, the engine weighing in at 21 lbs?
    i would be more worried about shearing a rim or twisting the frame. a goped is built for about 10-30 mph. anything more than that is dangerous. putting an engine capable of doing 100mph will destroy everything without some serious reinforcements.

    Quote Originally Posted by Dirtmonkey View Post
    His post doesn't say he's mounting engine on the front wheel. The engine will be in front of the rear wheel & centered from what I read.
    yes

    Quote Originally Posted by qwerty View Post
    Like on an Evo, putting the motor where the transmission sits instead ?
    That would be great, the motor mount on the swingarm makes it different from motorbikes and makes spring tensioning/ routing much easier and better balanced than with the sideways motor mount.

    Front Mb shocks will dive where cidli will not on braking, but a bothy fork will still feel more stable and 'rake" can be applied where a Goped cidli fork would soon break ( if not mounted 90 degrees).
    cidli dives when you break. but my suspension is modded so it actually has travel.


    Quote Originally Posted by greenborroco View Post
    just kick start it thats what john did on his big boy or danny boy what ever you call it.
    no. this is not a dirt bike motor.
    I'm going to make my own forum with blackjack and hookers. In fact, forget the forum.

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    dfl18 (01-20-2017)

  12. #53
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    Quote Originally Posted by Ogre View Post
    10-30 mph
    lol

  13. #54
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    Quote Originally Posted by GEO-GUY View Post
    lol
    think about it. is a sport or a stock configuration gsr with #25 chain designed to handle more than 30mph? i takes mods that are only really meant for racing. not to mention the premature failure on all the wear parts.

    just because we get these scooters up to 60mph doesn't mean they're built for it. without race poles, billet wheels, and many other mods, those scooters would be suicidal at those speeds.

    not saying it cant be done, but a single fork frame with that much hp could bend the axle on takeoff if not twist or snap the frame. without dual tubing(Y-frame) that is reinforced it would be worse than riding an h2 kawasaki 750. they call those the widowmaker for a reason.

    cale is a smart guy. i know he can get it done right, but what im saying is that tab failure on a stock gsr is irrelevant.
    I'm going to make my own forum with blackjack and hookers. In fact, forget the forum.

  14. #55
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    I'm aware, I just think it's funny because as you've mentioned people take these to 60 mph

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    Ogre (12-17-2016)

  16. #56
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    That was the longest reply to "lol" I have ever seen.

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    GEO-GUY (12-17-2016)

  18. #57
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    Quote Originally Posted by CaliusOptimus View Post
    That was the longest reply to "lol" I have ever seen.
    dragonfire has me beat by at least 2k words.
    I'm going to make my own forum with blackjack and hookers. In fact, forget the forum.

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  20. #58
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    Cool dude! Gotta a little chill down my spine when that sucker first turned over the video.

    That motor has closed casket funeral written all over it...I love it

  21. #59
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    Got my GTR roller this weekend (thanks again slitz!). I'm pretty sure I want to mount the KT100 to the GTR.

    After thinking on it some more I am almost certain I want to mount it 40 style with a jackshaft.

    That pole tho.... Ogre is like 6'5" and that's his GTR in the back. At least DDM caters to people of all heights
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    Quick mock up of the engine position. I want to keep it low and inboard as much as possible... if I make a custom fender I can really put the engine where I want it. I'm gonna CAD this whole thing out so I can get everything perfect before I start making decisions. It really doesn't look far out of proportions on that frame... it looks huge on a normal GSR.
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    Len (02-02-2017)

  23. #60
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    After a few minutes of disassembly... I noticed some of the parts in the pullstart were made to be bi-directional! This is awesome because this is something that could be reversed without machining. Of course... that takes all the fun out of it for me so there WILL be billet... at least a little more.

    Here is the complete pull start.
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    Here you can see how the reel was designed to go in either direction. The metal cup can be easily dremeled to work the other way.
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    Here is the spring for the pawl. I need a mirror image of this spring which is about a 5 minute problem with some music wire and a vaper's build kit.
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    I don't think I need to change this spring... I may need one wound other handed for it to work properly... but I'll cross that bridge only if I have to.
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    This side of the reel is universal as well. Just gotta pull that recoil spring and put it back the other direction.
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    This piece is needs some modification to work the other way... but again something that can be done with a dremel. I'll try modding this first, if it doesn't work out I'll machine a shiny billet one.
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    After all that I still need a reverse flywheel. I don't know if this is unobtanium nowadays but they did exist at some point. If I can't find one I've got two options: broach a new keyway (annoyingly complicated) or run an MSD kicker (kills the cleanliness factor). Hopefully I can find the part I need!

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