Micargi Puma with twin 97cc flat top lifan's

GoldenMotor.com

culvercityclassic

Well-Known Member
Sep 27, 2009
3,115
177
63
Culver City, Ca
That tank looks sweet, would make a nice gas tank too. What's taken so long to get that bike together? You short on free time. I keep checking for progress and don't see much.
 

Deiseldave

New Member
Dec 8, 2012
118
3
0
51
Warren, PA
Hope that you strenthen that , of could be a breaking point.... Hate to see if twist the frame after all that hard work LabRat. other than that looks good though
 

LabRat

New Member
Dec 24, 2011
596
20
0
Ruston, Washington
Hope that you strenthen that , of could be a breaking point.... Hate to see if twist the frame after all that hard work LabRat. other than that looks good though
When its seen where I am going with the seat pan and the riggings below the seat and seat post it will be far from a weak point.
 

glennbo

Member
Aug 24, 2010
347
13
18
HAMMOND
maybe weld a piece of plate on the top to reinforce the frame the seat should hide it. i woulnd trust it if you hit a nice size pot hole it might break
i just wrecked last month and i get sketchy now when it comes to safety .. i know you like to ride hard labrat as i do.. i really think the bike is cool keep up the great work..

glennbo
 

maniac57

Old, Fat, and still faster than you
Oct 8, 2011
4,484
22
0
memphis Tn
I'd strongly suggest you DO install a tube connecting the top rail to the bottom. This will greatly improve frame strength as it ties the "corners" together for triangulation.
This bike is far too pretty and powerful to take any chance of frame failure.
 

bigbutterbean

Active Member
Jan 31, 2011
2,417
3
38
Lebanon, PA
Yikes, brother. I wouldn't trust welding a bracket to thin, stamped metal to save my life. Sory, but those springer forks are almost all made out of stamped sheetmetal. I'd be afraid of braking my fork in half at 30 or 40mph. Or of the welded bracket breaking off. I'm running hydraulic motorcycle forks. They've got a tab similar to the one you've welded on to your springer fork, but its on a much larger diameter steel tube (not stamped sheetmetal). Unfortunately, the Worksman hub is not wide enough to reach the tab on the fork. I made a bolt-on bracket out of a motorcycle chain guard. One end of the bracket is bolted to the hole in the brake arm, the other to a hole on the fork originally intended as a fender support. I don't run fenders, so that's not a problem. I realize that your brake only has one method of holding it in place, but I hope that weld never fails and your fork never breaks in half. I recommend finding some wider diameter forks of some kind, or at least springers made out of heavy steel. Not dissing you bro, just concerned is all.
 

bigbutterbean

Active Member
Jan 31, 2011
2,417
3
38
Lebanon, PA
I just realized something. With static gears on both crankshafts, pullstarting either engine will cause the other's crankshaft to turn. Is this good or bad? I know that with some engines, bump starting by putting force directly on the crankshaft puts extra load on the crank seal, and the crank seal will eventually blow from that pressure. So I'd watch out for that.
 

Powertool

Member
Jul 8, 2012
229
0
16
Bradford,TN.
Great looking build so far , LabRat . I,m sure with the welding skills of Slege and yourself , the springer forks should be fine . Waiting to see what comes next . The king & queen seat would be cool . Keep up the work ! Tell Slege I said hay.