Those more expensive ones are much better than using a soldering iron or heat gun. Once you get the temp set for your particular plastic, it's not too bad to make a good weld, they can come out looking just like a metal weld with some practice.

It is best to match similar plastic for the best results when welding. In the kayaking world there is some excess plastic on the cockpit rim of the boats and we cut that to weld with so it's from the same production run. If you want to pay shipping I can send you some plastic I recently took off my IT200 as I went with a DC plastics kit, would be a side panel, which looks like it was rotomolded like the tank.

I assume the original tank is PP polypropylene? I ordered some PP rods in all different colors from eBay. It looked to have some lite blue. I’ll see when it gets here and let you know. Thanks 

I just posted the following in the 'IT425 Replacement tank' thread & then saw this one too, so put it here as well for those of you needing fuel tanks.  I think there are 5 or 6 tanks in addition to what is on the bikes.

I have some IT fuel tanks among many other IT parts available for sale.

Family member passed away last year and among his collection were the following IT's.
1977 IT250  This one will need some TLC.  (Just got it home today.)
1980 IT425  This is in AMAZING condition!!

We have the 1980 IT425 up & running, didn't take much, was stored inside a mini-storage unit.  It rips around really well & takes me back to my 1970's - 1980's of riding dirt bikes.  The 1977 IT250 I just brought home today, it was stored in his parents attached garage.  Motor was replaced but they say he had it up & running and rode it after the engine swap.

Anyway, in addition to these 2 bikes there are a lot of parts.  Tanks, fenders (F&R), side cover/number plates, Front number plates, speedo, headlight, exhaust pipes, silencers, etc.

I am bringing as much as I can fit on my 20' equipment trailer to a swap meet this coming weekend and another swap the following weekend.  Everything must go.  Proceeds from the bikes go to his parents.

I can text pictures of the bikes & parts.  Don't have them on the computer to attach here.  I'll watch for replies to this post for inquires.

Thanks, Dan  

Thanks. I had got a new Clarke tank and it leaked. After lots of monkeying back and forth they sent me another one. Don’t put new decals on a tank until it’s been proven not to leak.

I have an IT125 that I've been trying to repair a crack in the tank with no success. I found someone to plastic weld it, but it still seeped fuel. I've tried to soldering iron, replacement plastic technique, still seeps fuel. Frustrating because the bike is in excellent condition; there are no replacement tanks for the 125s.

Is it worth searching for an IT175 tank of the same shape & similar year as possibly didn't change much for a few years untill they redesigned frame & motor which they do every so many years, but the YZ usualy changes a year before the IT models although not always. What year is yours.

I probably have one the highest priced plastic welders  that Wegener made and my welds looked and still do look pretty damn terrible.

Last night after wasting about an hour or 2 smushing shit, filling the giant hole, and smushing more shit, i suprisingly "repaired" my CR125r's plastic tank.

MDPE, not PP.

after finishing, i filled it with some more water, and got a little bit irate that it was still seeping. I said screw it and pulled out an Iron i have for waxing snowboards with that plastic wax called "P-tex". Anyways, i let that iron get super hot, and started just smushing away. It worked.

So....long story short. Despite having a wegener autotherm super plastic welder of my own, the tool that worked was a sub  40 dollar iron.

lol ill post some pictures of this abomination in a few minutes.