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Fantic 300 Runs Like Crap! Rate Topic:

#1 Neil King

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Posted 09 July 2010 - 05:28 PM

Just picked up an '84 300. It starts pretty good, but won't run clean until the carb is almost dry. It runs good for about 10 seconds before it runs out of gas and dies. I thought maybe the float valve is leaking or floats too high but it looks like it would start running better before the carb is practically empty. It's got the stock carb, 45 pilot, needle in the lowest position. I didn't check the main jet size, but I'm no where close to needing that yet.

This post has been edited by Neil King: 09 July 2010 - 05:29 PM

#2 technowaldo

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Posted 09 July 2010 - 07:43 PM

sounds like it might be running way too rich especially if it starts to run fine when its running dry on fuel is ur air filter clean ?

#3 Neil King

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Posted 09 July 2010 - 11:00 PM

I had to choke it to start it after running it dry. I didn't have the filter hooked up.

#4 Neil King

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Posted 09 July 2010 - 11:01 PM

Yes it's running rich, I know that much.

#5 htrdoug

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Posted 10 July 2010 - 11:47 AM

Make sure you clean out all passages in the carb completely,but I bet it's the float,A new float is only about twenty bucks ,Call Herdan Corp or go to Dellorto direct,best solution is a OKO,but I wait until you get the other stuff on the old bike sorted before spending the dough on an OKO(saw your post on ADVRider) but when you start getting her working good you definately want the OKO.

Fantic 240
Fantic 309
Gasgas TxT280Edition
Yamaha TY350

#6 axulsuv

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Bike: 240 pro fm330 ty80
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Posted 10 July 2010 - 06:09 PM

htrdoug, on Jul 10 2010, 07:47 AM, said:

DITTO !!!!

Just a old trials kid !!! ITSA , STRA , MTR
And you never see a motorcycle parked in front of a psychologists office ...
"Traction is where you find it "
"To acheive anything in this game you must be prepared to dabble in the boundry of disaster" (Stirling Moss)

#7 Neil King

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Posted 18 July 2010 - 02:48 AM

I think I'm gonna let someone else deal with it. While I think it can be fixed up, there is nothing about the bike that I really like, though it would be neat if I could get a TL250 motor in it. I have a TL250 that needs more than the Fantic.

#8 axulsuv

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Posted 18 July 2010 - 08:37 PM

Pm me about the 300 ... I may have a home for it ...

#9 Neil King

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Posted 18 July 2010 - 11:18 PM

It's spoken for already. I had him in mind when I bought it, thinking he would want it if I didn't. Sure enough I got a email from him when he found out I had it.