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4 Stroke Bicycle Engines & Kits 4 stroke engine kits are great if you want reliability or do not want to mix your oil and gas. Learn from each other how to get the most out of your 4 stroke bicycle engine

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  #11  
Old 10-24-2016, 05:37 AM
MEASURE TWICE MEASURE TWICE is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

If your going to weld and think about spreading out stresses on the frame, maybe add some support from below the engine mounting plates in the middle to the frame below.

I have for my Briggs 4 stroke have done that. I also forward of the engine added metal plates as gussets connecting all three tube together on left and right side. But I am off road riding in the woods so it gets more stress.

I looked at the welcome for you and so I know you are mechanically inclined. Just saying anyway if you do weld near the pedal crank, it has to be removed of everything and cleaned of grease and paint. For my bike, it actually became void of pedals but is legal as a light weight off road motorcycle by CA DMV.

Those pieces of angle iron should have enough enough width of metal that the engine mount holes/slots can align the engine chain to drive sprocket on rear wheel. But again welding extra metal is easy, removing it is hours of grinding. Ask me how I know...hahaha!
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  #12  
Old 10-24-2016, 08:17 PM
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Agreen Agreen is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

Welding the angle iron on is a great idea. I have contemplated that for my Honda gx200 bike. I used a couple muffler clamps and the base plate (hacked and modified) that the engine came from (off a pressure washer). It looks awful, but works. But I keep having twisting issues after a few hundred miles because the nuts like to back off. Weld it on, do a good job, and it will last you way longer.

Or you could cut the little plate and re weld it at a different angle. I like your idea better though.
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  #13  
Old 10-24-2016, 10:21 PM
dgm099 dgm099 is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

Thanks folks, appreciate the positive feed back on the idea. Now to put it into action. My welder is supposed to be returned to me on tuesday, so I'm hoping for tuesday or wednesday welding.

When welded I will show ya a pic or two.
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  #14  
Old 11-02-2016, 06:50 PM
Tom from Rubicon Tom from Rubicon is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

dgm099,
Keep us up to date on your engine mount. The BB/Huffy build I did this last Spring is not up to my standards.
My current Sportsman Flyer 80 build is a engine mount system without compromise.
I am liking your approach of a Huffy engine mount. The BB engine mount in my kit did not have a bolt pattern that matched the HuaSheng bolt pattern.
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  #15  
Old 11-07-2016, 06:01 PM
dgm099 dgm099 is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

Howdy folks,
Sorry for the delay....my 35 yr old son was in a car accident 2 weeks ago....broke the tibia and fibia just above the left ankle in multiple places, as well as a bunch of ribs. Combine that with the infection that set in and 4 operations so far (due for another tomorrow) and things have been a bit outta hand lately. All mine and my wifes free time has been spent at the hospital, preparing for him to come stay with us for 6 to 18 months or trying to catchup on sleep. He is OK and doctors think he'll be coming home wednesday or thursday.



I did get my welder back (yahooo) and tomorrow (tuesday the 8th) I plan on tacking the iron in place to verify everything will fit properly. I've already prepped the surfaces.

Once tacked in place, I'll snap a pic or two, and add them here. Do ya think I should start a new thread in one of the build sub-forums? If I do, I'll add some pics to start the thread and add a link to the thread here. What ya think?

Mac
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  #16  
Old 11-07-2016, 09:56 PM
Seabass Seabass is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

Ouch!!!!!

I'm in the same spot as you right now. I got to mount a 212. Was thinking of getting a mount but after seeing your issue I think I'm going to do the angle iron. Guess I'll have to call my steel supplier tomorrow cause 3/16 2 inch is the smallest i got right now. Thanks for showing me the mount i was looking at in action. I was thinking 1/8 flat stock as well. Will need to roll over the edge of that for some more structure.

Now what size angle is that? Be careful not to burn thru welding that to the frame. Thats my worry. Not penetrating the angle or burning the post. I've welded tons of mismatched gauges but the bike tubes are really thin. I'll be lurking in your thread if you don't mind.

Last edited by Seabass; 11-07-2016 at 11:25 PM.
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  #17  
Old 11-07-2016, 10:37 PM
dgm099 dgm099 is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

I'm not much of a welder, but at least I can say I've done this type of stuff before...



That was my third or fourth recumbent I built and the only picture I can find of any of them.

Keep reminding me of what to watch for and be careful about, it's been awhile since I've had the welder in my hands.

If you're asking me what size my angle is, it's 1/8 by 1 1/4. Should be plenty for this light weight engine.

Last edited by dgm099; 11-07-2016 at 10:43 PM.
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  #18  
Old 11-07-2016, 10:50 PM
dgm099 dgm099 is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

I thought about brazing the supports on. I know brazing works well, but if I remember correctly, not for this type of butt joint. I'm I correct?
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  #19  
Old 11-07-2016, 11:24 PM
Seabass Seabass is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

I was thinking 1/8 angle myself. You know you could drill thru and bolt it.

Want another welding reminder. Weld longer at the thick piece and go quick at the thin. You could do it like your welding body panels on a car. Weld a spot at a time , allowing time for the metal to cool abit. Might help you not burn thru.
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  #20  
Old 11-08-2016, 05:03 AM
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malatious malatious is offline
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Default Re: Bought a 4 stroke kit from BikeBerry

I had the same idea when I started looking at that mounting plate that comes in the kit. I welded 1 1/2 angle on and am really please with the way it looks. the front tube on the huffy is bigger in diameter than the seat post tube so I notched the angle iron so the two pieces would run parallel to each other. Also angled all the ends so it looks like it suppose to be on there. Before I welded the pieces on, I slotted the angle iron for the mounting screws. I wanted to be able to adjust the engine forward at back so I could have a little bit of adjustment for the chain. While I had the welder out I went ahead and welded on tabs to mount the fuel tank to. You can check out my PICs in a thread I posted a little while ago. Hope I posted the link correctly.

http://motorbicycling.com/showthread.php?t=62122
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