| | | Mounting Techniques Every frame is different. Share and ask questions about mounting your motorized bicycle engine kit to your bicycle frame or bicycle rack | My next problem and I need some advice Discussion at Motorized Bicycle Engine Kit Forum in the Mounting Techniques forum. Well I got the threads out of the motor and now I am seeing that the space will not allow ...  | | 
06-10-2009, 11:39 PM
| | Motorized Bicycle Member | | Join Date: Jun 2009 Location: Virginia
Posts: 23
| | My next problem and I need some advice Well I got the threads out of the motor and now I am seeing that the space will not allow anything to fit. I have room but not for the carb, and I'm thinking that with this angle the motor will throw the chain off or make the rest of my mounting difficult. Also the drilled holes for the water bottle are interfering with the bracket mounting flush as well as the tube being too fat so I have to use the front mounting bracket but doing so makes the spark plug come too close to the top of the frame... Any thoughts? | 
06-11-2009, 12:23 AM
|  | Motorized Bicycle Elite Member | | Join Date: Aug 2008 Location: Mississippi
Posts: 404
| | Re: My next problem and I need some advice manic mechanic.They have the intake that you need.They are sponsors on this site.HARLEYS DAD
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06-11-2009, 12:44 AM
|  | Motorized Bicycle Elite Member | | Join Date: May 2008 Location: "the bog" NH
Posts: 229
| | Re: My next problem and I need some advice It looks very similar to the slight problem I had. (i was meaning to go back and edit my post about my glacier point in your other thread this saves me the trouble LOL) I couldn't get my spark plug tool on without having the motor at slight angle. It ran fine at sight angle. Not guaranteeing yours will. I bought a stubby NGK BPM7A Spark Plug. I could straighten out the motor and just barley get the plug tool on. I got a slanthead to fix that. As a bonus more power! I checked for leaks after 10 miles. I have put about 20 more on it, I want to check again.
My carb is also the same way its seems to be running fine. But I'm sure its not running at peak performance. I may eventually get a couple a intake manifold and cut them to make a slight bend and take it in to a weld shop. I still trying to work out what to do about that.
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DAX 80f
Slanthead
NGK B7HS
SBP performance wire
44T
Stock Exhaust
32:1 cheap oil
no port matching
30 mph uphill!!! | 
06-11-2009, 11:22 AM
|  | Motorized Bicycle Elite Member | | Join Date: Jan 2009 Location: Phoenix, AZ
Posts: 296
| | Re: My next problem and I need some advice A slant head sure would help.
Another thought would be to turn the cylinder head around so carb is at front. I've never tried it myself.
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06-11-2009, 08:11 PM
|  | Motorized Bicycle Elite Member | | Join Date: Mar 2009 Location: upstate NY
Posts: 1,452
| | Re: My next problem and I need some advice i had the same problem with my old bike,i had to notch the frame above the sparkplug and behind and above the carb plus i couldnt use the airfilter.
you etiher get another bike like i did or get a short plug and use a pantyhose in place of the filter housing.
i looked at your pics and it looks like you have just enough room,maybe you just need a straight intake pipe.
Last edited by Cabinfever1977 : 06-11-2009 at 08:13 PM.
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06-17-2009, 12:32 AM
| | Motorized Bicycle Elite Member | | Join Date: Jun 2008
Posts: 182
| | Re: My next problem and I need some advice tascott....i had similar problems...had to go with a slant head...shortened my intake and drilled a small hole on my top tube for my trootle...now everything is great...ha...Dennis | 
06-19-2009, 01:37 AM
|  | Motorized Bicycle Elite Member | | Join Date: Jun 2009 Location: Washington St.
Posts: 391
| | Re: My next problem and I need some advice Have access to a wire feed welder? The tube is steel from a junk import car heater hose transfer tube. The thinner tube makes for alot bigger inside diameter and better flow. 
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07-09-2009, 02:33 AM
| | Motorized Bicycle Member | | Join Date: Jun 2009 Location: centralia,illinois
Posts: 21
| | Re: My next problem and I need some advice Am Having The Same Problem With A Bike Am Building Now,have The Slant Head Engine In Place But Not Enough Room For The Carb...saw A Posting Here A While Back That Had A Intake That Bent Out To The Side,and Was A Little Longer To Clear The Top Beam | 
07-09-2009, 05:08 AM
| | Motorized Bicycle Elite Member | | Join Date: Jun 2008
Posts: 182
| | Re: My next problem and I need some advice Quote:
Originally Posted by REG1951 Am Having The Same Problem With A Bike Am Building Now,have The Slant Head Engine In Place But Not Enough Room For The Carb...saw A Posting Here A While Back That Had A Intake That Bent Out To The Side,and Was A Little Longer To Clear The Top Beam | here is a place to pic up short sections of tubing...reasonable...metalsdepot.com...they will sell and ship 2ft sections...i bought exactly the same size intake tubing here...good luck...Dennis | 
07-09-2009, 01:48 PM
|  | Moderator | | Join Date: Sep 2008 Location: Littleton, Colorado
Posts: 1,903
| | Re: My next problem and I need some advice Maybe I'm missing something here guys, but looking at drhofferber's bike I have to ask why are you mounting the engine so high in the frame? If it were lower, closer to the crank you'd have sufficient clearance for the plug and carb. Also your chain wouldn't be at such a sever angle. The lower the motor, the better for weight distribution and balance also. Just wondering.
Tom
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