Fuel Pump replacement...and best carb clean "how to"

[mcompton1973]

when I get home I will water test all 4 and see if they are hot I guess

[videoarizona]

Seriously, have you replaced or pulled the coil ends of the front two coils to look? If you haven't, that would be my next step....Btw, you can still buy wire and caps as a matched set with 5k ohm resistance that plug right in.

[mcompton1973]

I have not done anything with plugs or wires at all.

 

When I got home after about an hour ride, I splashed a little water at each cylinder.

I THINK that there is a chance the #3 is not working.

 

The 3 others sizzled and boiled the water....the #3 was hot to to touch....but it did NOT boil the water and sizzle the same way.

[snyper316]

I have not done anything with plugs or wires at all.

 

When I got home after about an hour ride, I splashed a little water at each cylinder.

I THINK that there is a chance the #3 is not working.

 

The 3 others sizzled and boiled the water....the #3 was hot to to touch....but it did NOT boil the water and sizzle the same way.

Yeah you may need to look at that one.

 

Sent from my LG-K371 using Tapatalk

[BlueSky]

One of these is really handy.

 

https://www.walmart.com/ip/Dr-Meter-IR-20-Non-contact-Digital-Laser-Infrared-Thermometer-50-C-to-550-C-Memory-Function/187896573?wmlspartner=wlpa&selectedSellerId=2762&adid=22222222227077798679&wmlspartner=wmtlabs&wl0=&wl1=g&wl2=c&wl3=190053550968&wl4=pla-294783571614&wl5=9010080&wl6=&wl7=&wl8=&wl9=pla&wl10=113126187&wl11=online&wl12=187896573&wl13=&veh=sem

[bongobobny]

Yup!! My response is also "Not necessarily!! The carb is sucking the gas/air mixture INTO the chamber, but that does NOT mean once in the chamber it is igniting!!! Pull each plug wire one at a time and see if there is a drastic change in how it runs!! If you find one spark plug wire that makes little or no difference then you have found the cylinder that is not firing right!!! Yes, they run pretty darn good on 3 cylinders, and you will get less than 30 mpg...

[mcompton1973]

OK, so I went out and started it....Pulled the plug off the one I thought was not working...No change in how it ran. Pull the plug off of another one (I think #2 ) and it stopped all together. So I think we have found the source of bad mpgs as well as the raw fuel smell.

 

Now...what are the possible causes?

 

Also...I think I was wrong. I think it is the #4 cylinder. As I am sitting on the bike, it is the one on the right side front towards the radiator. Same one that yesterday I thought was not working....I just think I was counting them wrong.

[snyper316]

OK, so I went out and started it....Pulled the plug off the one I thought was not working...No change in how it ran. Pull the plug off of another one (I think #2 ) and it stopped all together. So I think we have found the source of bad mpgs as well as the raw fuel smell.

 

Now...what are the possible causes?

 

Also...I think I was wrong. I think it is the #4 cylinder. As I am sitting on the bike, it is the one on the right side front towards the radiator. Same one that yesterday I thought was not working....I just think I was counting them wrong.

 

 

(2) (4)

(1) (3)

(iiii)

(IIIII)

[snyper316]

Where Is your TCI Located on this bike? First thing I would do is go to autozone and pick up a Spark Gap Tester, unscrew top and put your cap on it and ground the aligator tip to bolt or something and fire bike up and see if it is throwing a spark,But in order to get to the coil cap you just need to remove the Reflecter aluminum piece and you should be able to unscrew that But I am almost certain the 2 front coil packs are bad about getting corroded in the end of the wires. I just cut about 1/4 to 1/2 inch and plug it back into coil.

[mcompton1973]

OK. So the coils are up on top of the bike, kind of in front of the battery. The #4 is the one that I don't think is working right. I pulled the wire off the parts bike, trimmed it and reattached to the bike I ride.

 

No difference at all.

 

I was going to pull the plug, but dont know the right size and didn't have one that fit handy. I do not have anything to test if it's the wire, the plug, or the coil right now....and parts stores are closed. I'm guessing there is a tool I can plug in the end of the spark plug wire to tell me if I'm getting spark.... Then try different wires to know if it's coil or wires that is the issue???

[videoarizona]

If you have the bikes tool kit, is easy to pull plug. Ground it in cylinder and fire her up. If the area is dark, you should see a fat spark. If not, then you know you have an electrical problem. You could swap plugs and test again.

 

Don't hold on to wire... The shock smarts!!

Btw, look at the electors end of plug closely. Make sure the tip isn't bridged by Gunk.

[mcompton1973]

I do not have a toolkit.

[videoarizona]

Then any good spark plug socket which has the rubber insides to capture the plug so you can pull it out will work.

Of course, I can't remember the size... Hopefully some one else will chip in. Just make sure you blow some air in to clean the area around the plug. It is a deep hole and did accumulate junk. Don't want that in combustion chamber.

[camos]

Then any good spark plug socket which has the rubber insides to capture the plug so you can pull it out will work.

Of course, I can't remember the size...

Well, not just any, it needs to be 18mm which is a different size from the traditional plugs we are all used to.