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Fuel Fuel Delivery


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  • 1 Post By paolo6
  • 1 Post By Szatyorfulu
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August 3rd, 2017, 06:09 AM   #1
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Fe501 '94 fuel tank mod

Hi!
I am building a bike based on a half-destroyed FE501, just finished repairing the frame and suspension and put in the new engine (it is a 125 two stroke). Dont worry, the original engine was total toast, a valve broke off and made some party in the cylinder finding its final resting place in the piston...

So the issue is, the new engine is higher than the original, so I had to cut out a piece from the lower right side of the fuel tank to make it fit. Two planes can be fit into the cut, making it pretty easy to seal with a correct method. A plastic welder made some tries, but could not stick it, not even with its own material. Could someone help me finding a method to weld/glue this plastic shock and fuelproof? It is a yellow Acerbis tank, feels quite soft.

I also thought of cutting some aluminum into the hole, studding or bolting it around (like repairs on airplane outer hulls) and applying some sealant into the gaps. I would not really like to do this, I dont feel it safe nor really elegant..

Szatyorfulu
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Fe501 '94 fuel tank mod-20543591_866828060135132_7371688195133236213_o.jpg  
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August 3rd, 2017, 07:05 AM   #2
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never done this work before ...how about fitting a ''petrol bag holder'' or something similar inside the tank...using the bag to actually hold the petrol and the tank on the outside
(somenthing goggle random)
http://atlinc.com/images/stages-of-a...el-bladder.jpg

the hose that connect the tank to carb will be an issue and needs to be sorted

I never seen a 94 tank and never repair one, but could be an idea
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August 3rd, 2017, 07:48 AM   #3
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Thanks for answering, I thought of that as well. Sure it could work, the Apache attack helicopter uses such fuel tanks But I think it is quite hard to 1. find some material thats fuelproof, easy to solder/weld/glue 2.make the bag fit good inside the tank 3. fix the bag inside so it cannot separate on impact after a jump or a crash 4.Make it so it can be filled through the cap.

Sooo I would not like to use that method.. any other ideas? Someone said that soldering equipment may work, has anyone done something like that?

Szatyorful
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August 3rd, 2017, 02:24 PM   #4
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If you can find a mx tank . They are shorter and don't have that lower part of the tank on that side . Less capacity but should work . If you had it in one piece maybe you could find some one to trade
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August 3rd, 2017, 03:11 PM   #5
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webmonstro took my words as I read this thread.

get an MX tank mate! you will NEVER seal it now. should have repaired the cylinder and head....now the Gremlins are going to get you!

Taffy
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August 4th, 2017, 01:54 AM   #6
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Well that sounds good, but is there an mx tank for this years (94-96 I think)? I have seen replacement small tanks but only for 2013 and on, would that also fit?
Update: would the FC series tanks fit on the FE series?

webmonstro: I have two tanks, this one was already cracked on the bottom, so I didnt hesitate to cut into it the other one is old but intact.

Taffy: I thought of repairing the original engine, but everything above the crank was badly destroyed and the money I spent on the project would still not be enough to buy more than a piston and a cylinder.. not to mention that the maintenance costs are much higher for the Berg engine(sure it rips better though ).

Szatyorful

Last edited by Szatyorfulu; August 4th, 2017 at 02:00 AM.
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August 4th, 2017, 02:29 AM   #7
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You need a mx ( fc) tank from a pre2000 bike . Not sure but think they are all the same
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August 4th, 2017, 02:34 AM   #8
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Like this
http://m.ebay.com/itm/1998-Husaberg-...%257Ciid%253A5
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August 4th, 2017, 03:49 AM   #9
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to send that anywhere, just ask them to remove the fuel taps and then lay it on a cushion at the vback of a car for 10 minutes on the end of an exhaust pipe. this will purge the fumes from it.

here is a fuel tank that I think is still repairable!!!



Taffy
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August 7th, 2017, 03:43 AM   #10
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Thank you guys for answering, you helped a lot! Im gonna get a smaller tank and no more problems

Szatyorful
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