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2 Stroke Bicycle Engines & Kits 2 stroke motorized bicycle engine kits need careful installation and setup, find out how from our professionals here!

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  #1  
Old 03-20-2010, 04:12 PM
Mo'Beffah Mo'Beffah is offline
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Join Date: Mar 2010
Location: Hawaii
Posts: 59
Default Newb first build.

Got a couple questions for all the helpful folks on here. Found this forum after buying my first kit (got shipped out a couple day ago). Realized most of my research was which Chinese engine kit to buy....so not a good start. That's a fuzzy area. Bit I got a grubee starfire 66cc comin an was just wondering if that was a good choice. Any happy with theirs? Dissapointed? Not sure how big these engines are so well see if it even fits the bike I wanna use. It's a 3-speed Electra cruiser but the fram is shaped tricky for this build. Here's a link with a pic. http://i72.photobucket.com/albums/i1...1268989785.jpg
any ideas how to remove that crossbar in the middle of the frame? I don't have a welder but how would you get it off with that anyway? Appreciate the help.
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Old 03-21-2010, 12:38 AM
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bairdco bairdco is offline
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Join Date: Aug 2009
Location: orange county, ca
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Default Re: Newb first build.

i've got 3 starfire 66's and i love 'em. i never tried any other motors, but from what i've read, i didn't have as many "out of the box" problems that a lot of other people have.

also, from people i've ridden with, mine seems to have more torque, without even modifying it.

as for your bike, i don't think it's gonna fit with that crossbar. you can cut it out with a hacksaw or a sawzall, then use a grinder on the leftover welds. just take your time and don't go nuts on it, and you'll be able to make it look like it was never there.
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Old 03-21-2010, 08:17 AM
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leftywoody leftywoody is offline
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Join Date: Aug 2008
Location: Lagrange Indiana
Posts: 377
Default Re: Newb first build.

What a nice looking frame . Bairdco is correct as far as the remedy to get an engine to fit . I'm just not sure if your frame would withstand the missing bar without cracking other welds once you are on the road. It does happen to frames that haven't been modified . You may have a very strong frame or a very weak frame right out of the crate . You need to have a metal man check it out . Perhaps at a good reputable body shop . And perhaps they can strengthen the frame after the modification .Great choice on the Grubee .
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Old 03-21-2010, 02:31 PM
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stuartracing stuartracing is offline
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Location: Gainesville FL.
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Default Re: Newb first build.

I don`t thing the motor will fit good in that frame....Motor mounts won`t reach the frame....Best bikes are the tri angle ones....The middle of the frame looks like a tri angle when looking at it from the side.....Yours just looks too big/open of an area.....
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Old 03-22-2010, 01:14 PM
gubba gubba is offline
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Join Date: Dec 2008
Location: jacksonville, florida
Posts: 143
Default Re: Newb first build.

i agree, you have to remove the offending crossframe.
grubee includes an extra rear mount ''spacer'' and includes the longer threaded shafts fo make it fit.

use a ''double nut'' to remove the short shafts and put in the longer ones.
TIP:when putting in the longer sharfts just barely snug them in the block. DO NOT over tighten them or you can split the block.
you will prob have to extend the coil wires. the white wire is a mini amp source for a low power light. i just cut it short to keep it away from the muffler.

if you have to, go to NAPA and get some 7mm plug wire an a crimp on plug attatchment.

hope this helps. keep us posted.

stay dry
gubba
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