Planet Minis

fatcaaat · 09-21-2008, 07:11 PM

Been through this before but just for sanity's sake, what do you think.

I took a carb from a running motor about 8 months ago. I put it on another motor that I had running previously. It has sat for 8 months.

This weekend, I tried to get it to run and it just laughed at me. Brand new plug, new gas. Timing's spot on, bright blue spark.

A squirt of ether and it fires up pretty easily but won't stay running.

I took the carb apart and cleaned it. Changed the jets. Everything looks ok. Still only runs on ether.

So, is it the carb or is it a valve? No backfires and the motor ran fine before. I thought I got everything on the carb but I guess it is still possible.

Carb the most likely culprit?

Blackwoodz · 09-21-2008, 07:21 PM

main jet is probably still not clean.....fire it on ether and quickly cover the carbs intake completely with your hand to make the engines vacumn suck fuel through the jets.

sanigene · 09-22-2008, 10:13 AM

blow some air through the petcock?

sani

fatcaaat · 09-22-2008, 10:30 AM

I have the carb at home with me, away from the bike. When torn down, both jets were clean as a bean. So, unless there is some gunk in some of the passageways, which there could be, then I don't know what else could be going on.

jkline805 · 09-22-2008, 11:17 AM

did you make sure gas is getting into the carb? is the fuel petcock gummed up? Gas tank vent working good?

LoudFastUgly · 09-22-2008, 06:24 PM

Stuck float / float height incorrect.

09-21-2008, 07:11 PM	#1 (permalink)
fatcaaat 3rd Gear Member Join Date: Sep 2004 Location: Arlington, VA Posts: 3,778	starts on ether...otherwise not Been through this before but just for sanity's sake, what do you think. I took a carb from a running motor about 8 months ago. I put it on another motor that I had running previously. It has sat for 8 months. This weekend, I tried to get it to run and it just laughed at me. Brand new plug, new gas. Timing's spot on, bright blue spark. A squirt of ether and it fires up pretty easily but won't stay running. I took the carb apart and cleaned it. Changed the jets. Everything looks ok. Still only runs on ether. So, is it the carb or is it a valve? No backfires and the motor ran fine before. I thought I got everything on the carb but I guess it is still possible. Carb the most likely culprit?

09-21-2008, 07:21 PM	#2 (permalink)
Blackwoodz 3rd Gear Member Join Date: Aug 2008 Location: SC Michigan Posts: 3,624	Re: starts on ether...otherwise not main jet is probably still not clean.....fire it on ether and quickly cover the carbs intake completely with your hand to make the engines vacumn suck fuel through the jets.

09-22-2008, 10:13 AM	#3 (permalink)
sanigene 1st Gear Member Join Date: Oct 2005 Location: NS Posts: 230	Re: starts on ether...otherwise not blow some air through the petcock? sani

09-22-2008, 10:30 AM	#4 (permalink)
fatcaaat 3rd Gear Member Join Date: Sep 2004 Location: Arlington, VA Posts: 3,778	Re: starts on ether...otherwise not I have the carb at home with me, away from the bike. When torn down, both jets were clean as a bean. So, unless there is some gunk in some of the passageways, which there could be, then I don't know what else could be going on.

09-22-2008, 11:17 AM	#5 (permalink)
jkline805 2nd Gear Member Join Date: Apr 2006 Location: Northfield, Minnesota Posts: 719	Re: starts on ether...otherwise not did you make sure gas is getting into the carb? is the fuel petcock gummed up? Gas tank vent working good?

09-22-2008, 06:24 PM	#6 (permalink)
LoudFastUgly 2nd Gear Member Join Date: Aug 2008 Location: GTA, Ontario, Canada Posts: 383	Re: starts on ether...otherwise not Stuck float / float height incorrect.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)