started all over again

skarrd

New Member
#1
picked this up for 65 bucks,couldnt say no for the price plus I needed something [besides the Woman] to keep my hands busy and tools from rusting,it was a lot of fun,and a blast to ride even though it is very slowwwww,still fun,now the same guy who sold it to me Gave me a 212 off his power washer cause the carb is *tweaked*,not sure what that means ,,,yet,so the obvious question is what goes into putting that engine in this frame and is it safe?Any thoughts/experience will be much appreciated.
 

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#2
First thing you need to do is put the forks back on the correct way. And then straighten them to get the geometry back where it belongs.

Put the 212 on it and have fun. You can redrill the engine plate or you can buy the adapter plate that will bolt to the small pattern on the frame and the 212 big pattern bolts to the plate. Most just redrill the plate and spend the money elsewhere. Buy a good clutch and that should get you started.

Here is the easy way to straighten your forks. Scroll down to the pics I posted of the orange DB30. Post #15

https://www.oldminibikes.com/forum/index.php?threads/db30-front-end.159145/#post-1181371

Here is another link for you.

https://www.oldminibikes.com/forum/...ith-the-lifan-152f-3-80-cc-engine-yet.166358/
 
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skarrd

New Member
#3
First thing you need to do is put the forks back on the correct way. And then straighten them to get the geometry back where it belongs.

Put the 212 on it and have fun. You can redrill the engine plate or you can buy the adapter plate that will bolt to the small pattern on the frame and the 212 big pattern bolts to the plate. Most just redrill the plate and spend the money elsewhere. Buy a good clutch and that should get you started.

Here is the easy way to straighten your forks. Scroll down to the pics I posted of the orange DB30. Post #15

https://www.oldminibikes.com/forum/index.php?threads/db30-front-end.159145/#post-1181371

Here is another link for you.

https://www.oldminibikes.com/forum/...ith-the-lifan-152f-3-80-cc-engine-yet.166358/
Thanks for the input,the fork straightening method looks simle enough,might even get an extra inch of ground clearance,lol. probly just drill the existing plate [depends on money factor next month]
 
#4
I like the mounting plate and it's worth the money IMO. My friend and I both have old style Doodlebugs and had to drill holes to make it work. We'd have to slot the factory mounting plate to get any kind of fore/aft adjustment. We have tensioners on ours so that's not really an issue.

One thing to think about is it makes tightening the engine bolts super easy. The adapter plate is bolted to the factory setup and you put the engine on it. You can see the square bolt heads in the pics that go into the slots.

https://www.hotrodminibike.com/product/pmr-adjustable-motor-mount-kit-mini-bike-engine-swap/
 

skarrd

New Member
#5
I like the mounting plate and it's worth the money IMO. My friend and I both have old style Doodlebugs and had to drill holes to make it work. We'd have to slot the factory mounting plate to get any kind of fore/aft adjustment. We have tensioners on ours so that's not really an issue.

One thing to think about is it makes tightening the engine bolts super easy. The adapter plate is bolted to the factory setup and you put the engine on it. You can see the square bolt heads in the pics that go into the slots.

https://www.hotrodminibike.com/product/pmr-adjustable-motor-mount-kit-mini-bike-engine-swap/
Thanks for the info,been thinking on it and figured I would go with the mounting plate,
 

skarrd

New Member
#6
Big change of plans engine wise,had the chance to ride a MM with a 212 in it,i think I will stick with the 3 HP for now,i did get the forks *mostly* straightened back out though,still about 3/4 inch off,but manageable.anyway now onto a slightly larger framed MB for the 212 :)
 

skarrd

New Member
#7
so here is the finished project with 212 engine. didn't have the money for a mounting plate or stage 1 kit so I adapted. Engine is hard bolted to original plate with 3-1/8s in thick washers under rear mounting points,as well as washers under gas tank mounting points for leveling of tank,new chain and clutch,didnt have to mod the air box ,except for cutting off excess plastic on the bottom.all else cleared. runs like a bat outa hades! even stock its fast,the woman paced me in her car and sai 32-33 MPH,so I am Very happy.Thanks for input and looking :)
 

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