Yamaha Star 650 Fuel System Testing and Troubleshooting - From The Fuel Tank to the Carbs

[@sitanx]

I found this video super informative. Right what you need to hear without making you waste your time. Thank you!

[@retrotechandelectronics]

Glad it was helpful!

[@tomakafrankconlon3207]

Its not what you are saying that makes this a 10 out of 10 video. Its how you say it. Very well done.

[@retrotechandelectronics]

Thanks.

[@stratsurvivor]

Great video. thanks for taking the time to teach!

[@retrotechandelectronics]

Glad I could help.

[@inutiasha]

@@retrotechandelectronics when i turn my 650 v star on. The pump wont prime. I disconnect the fule line to carb, and the pump primes... If i block with my finger it wont prime. Is my pump bad? It seems to not have the strength to push gas into the carbs. I also did what u showed, gas line into the carbs and my bike ran.

[@retrotechandelectronics]

@@inutiasha If the bowls are filled with gas and the floats are up, where do you expect the pumps to push gas into? Maybe the carbs are already full?

[@yeahhitsa3.0]

Just helped me out! Was broke down but found my problem

[@merchants393]

very appreciative of these videos... about to purchase this very bike and theyve been super helpful

[@retrotechandelectronics]

Glad you like them! Maintenance is key!

[@patrickcormier1030]

You just saved me a lot of time and work on my build! Thank you!

[@retrotechandelectronics]

Glad to help!

[@pooshayboy]

You are the best! Great videos!

[@retrotechandelectronics]

Glad you like them!

[@campsite21]

Detailed video, thank you

[@retrotechandelectronics]

You’re welcome

[@osvaldoj9678]

great troubleshooting

[@retrotechandelectronics]

Thank you.

[@francescoschiavone7685]

great video, it was really useful, thanks

[@fabriel146]

It was very helpfull, thank You.

[@retrotechandelectronics]

You're welcome!

[@rebeccam7856]

Thanks for the video - I feel like I can try this now!

[@retrotechandelectronics]

good luck.

[@maximkonyakhin4025]

Bravo!

[@richardmeijer4713]

Great video perfect explanation Thanks a lot I appreciate it

[@retrotechandelectronics]

Glad you liked it

[@drip6070]

Can u make a video specifically on replacing the fuel filter

[@retrotechandelectronics]

Why? Its specifically shown at just over 2 minutes into the video.

[@Austin-ro4bv]

Thanks you so much trying to make my v star 650 run again I'm going to try this tomorrow😁😁

[@Austin-ro4bv]

We got it started buy puting gas in the air filter but it doesn't idle

[@Austin-ro4bv]

I cleaned the carburetor so???????🤔🤔

[@retrotechandelectronics]

WHAT??? That's not a thing! You don't put gas in an air filter, Take it to a mechanic.

[@Austin-ro4bv]

@@retrotechandelectronics sorry 😭😭😭

[@micknet641]

I have a question relating to a gas leak, and I don’t think you ended up covering my issue. Is there any way we can get in connection and discuss what it might be?

[@johnnyluna9700]

Great video it was a lot of help👍💯👑🫡🇺🇸🇺🇸🇺🇸

[@retrotechandelectronics]

Glad it was helpful!

[@physicalgraffititattoomexi8034]

thanks

[@retrotechandelectronics]

No problem

[@TheLAView]

Awesome Video, Thank you

[@retrotechandelectronics]

You are welcome!

[@jmkc1964]

Nice video thank you so much

[@retrotechandelectronics]

I hope u found it helpful.

[@biggbossman1130]

Thank you so much for this video....I was about to go out and buy a fuel pump,I did the test with the multimeter and the service manual....it wind up being the fuel pump relay

[@retrotechandelectronics]

Glad it helped

[@allenblackford8818]

@@retrotechandelectronics I think I may have a fuel pump relay issue. All fuses test good. I checked the fuel pump resistance and it was 2.2 so that was good but when I checked for voltage on the pins of that connector I get no voltage at all when I turn on the key switch and the kill switch. I'm now trying to locate the relay but I'm unsure of it's location. Is it down behind the starter relay? Thanks

[@TheRoboticwolf13]

Where is the fuel pump relay located ?

[@Spartacus4000]

I didnt get a voltage on the leads.. whats next?. Do i check for voltage at the relay? (I already checked thats all fuses have continuity)

[@daviddinelli5537]

I would like to know why my 659 yamaha v-star will dial but when I go to take it boggs down new carbs . I thought it was the full pump tested and works.one more question are the keys in the carbs supposed to move you're going to regular pisses your own up and down in the carburetor I'm

[@von8217]

Very helpful videos. When I try to start my 2002 VStar, the engine turns only once, then it stops and the starter relay buzzes and vibrates as if it’s clicking really fast inside. Battery is at 12.7v, fuses are good. Does that sound like a bad relay?

[@von8217]

Figured it out. The battery held a charge of 12.7v but it failed a load test. Replaced the battery and all is good.

[@coreyf3400]

Was going to say sounded like a load issue

[@philspaseo2377]

At 07:00 what did you mean it could’ve ran fine without a fuel pump?

[@retrotechandelectronics]

The carbs were being gravity fed from a funnel off to the left, and did not require the fuel pump in that test.

[@andybooth5269]

@@retrotechandelectronics how do you test the fuel pump relay and what shuts the fuel pump off while running when the bowls get full?

[@jrsmaro78]

My bike doesn't make the pump noise when you turn the key but it runs...does it mean the pump is still bad?

[@shadyss96]

I wish I found this earlier.. any words of advice from the guy who drained it from the fuel filter, added and started it up? It started up, but the carbs are def dirty from the bike sitting.

[@retrotechandelectronics]

I have a whole series on the removal, teardown , cleaning and rebuild of those carbs

[@jacobbos2208]

Great vid! Thx. Question, what makes the ticking noise when you turn the bike to the on position?

[@retrotechandelectronics]

The ticking noise is a correct response for a few seconds when turned in the on position unless the bowls are completely filled.

[@jacobbos2208]

@@retrotechandelectronics thx! Yes I realise it's good, but what is the noise? I assume it's a relay possibly? Just curious

[@tnelson109]

Any suggestions why fuel pumps out the top of the carbies when you turn the ignition on? Won't start. Take the top cover off and it just spurts out from each carby.

[@retrotechandelectronics]

your floats are stuck or their needles arent good anymore.

[@damadpsientist]

Hi I have a 2002 v star and not only does it not click ( fuel pump) but the front cylinder goes out. Have you heard of anything like that

[@j-baz6454]

Are you aware of a fuel pump relay for the 03 650? I am having trouble getting the fuel pump to work, 2nd pump and no joy.

[@j-baz6454]

Fuses checked.

[@tzentzenguaro]

This may be a dumb question 🙋 does the fuel pump supposed stay running all the time? Thanks for video

[@retrotechandelectronics]

No it doesnt

[@auliaariefhaz5241]

When switch cut off engine position on, fuel pump not work, not noice on.... What the problem sir? Fuel pump broken or system electric short?

[@Thecelestial1]

I have suspicion that my fuel pump is bad. There is a very loud ticking sound upon power up that isn't like the normal ticking before and I can even hear/feel the ticking as I ride and the bike which eventually loses energy, sputters and dies just about the way you'd expect an engine to die when it runs out of fuel. The bike will run on choke at cold start up, so I think the ticking sound is the fuel pump trying desperately to give the engine the fuel its asking for. Twice now the bike has died on me about a mile from home. The second time I tried to start it up right after it died and nothing. I started walking it home and thought to give starting it another try after turning it off and walking about a half a mile with it. Again the same loud ticking and It started right back up quickly but only ran well for a few seconds dying again as I pulled onto my street about a half a mile away which I'm pretty thankful for not having to walk. I know its not battery related because I bought a new one and start up is usually pretty quick. Anyone have other ideas or concur that something is wrong with the fuel pump? I'm going to test it by doing the method you've shown to empty out bad gas. I'm also going to check the filter as I've never changed it and I doubt the previous owner did due to the general lack of maintenance on other parts of the bike. Wish me luck all! And thank you retro tech, I'll come back with more once I know it.

[@Thecelestial1]

I have finished the fuel pump replacement and it seems like everything is fine now! Removing the seats and tank was easy enough, but getting my fat hands into the harnesses was not. I ended up replacing the pump and the filter and the bike did not bog down or die to the closest gas station about a half a mile away, nor when I took the long way home about 2 miles. I'm convinced the repair was correct. If you're doing this repair make sure you don't trust the amazon sure fit! I bought one fuel pump only 'guaranteed' to fit only to realize it didn't have the same connector so that slowed me down significantly. The second fuel pump was an exact match which I wasn't expecting to find especially for only about 25 bucks! Reassembly was muuuuch faster than disassembly and replacement, like 30 minutes to an hour. I did have a problem getting the airbox back onto the carbs. I found another tip that suggested applying wd40 or other lubricants to help get it on. Doing that and rocking the airbox front and back finally did the trick! If you think your fuel pump is bad I'd say give it a go. This is the best and most thorough guide video I found for virtually all my vstar 650 needs so watch this guy a few times before trying anything else. Good luck and peace!

[@markkeller8342]

I have fuel pouring out somewhere near the carburetors. Can the fuel line to the carburetor be replaced without removing the gas tank?

[@retrotechandelectronics]

No it cannot.

[@markkeller8342]

The fuel line coming from the filter goes into a brass fitting that is used I guess to reduce the size of the hose. The hose from the other side of this fitting is missing and gas is pouring out. Do you know where that missing hose goes to from that brass fitting? Any help you can give is much appreciated.@@retrotechandelectronics

[@RICREYNOLDSMUSIC]

My 2002 650 cut out on my way to work. I replaced the plugs, the gas filter, (which was filled with black corrosion). It still sputters and wants to quit if I give it more throttle. It only has 4500 miles on it and had the Carb rebuilt a few months ago. I felt something give as I was going 70 mph and I can`t help but think the gas tank is rusted inside and clogged my Carb. I put a temp glass filter to watch my gas flow and sure enough, more black flakes came into the filter. Now I think I need a new tank and Carb to get it right.

[@retrotechandelectronics]

If the filters held up, the carbs should be fine. Clean out the tanks and determine that that stuff is, if it is part of the tanks, have the tanks lined or replaced.

[@RICREYNOLDSMUSIC]

@@retrotechandelectronics My gas tank was filled with rust and black crap. My Petcock was covered inside and clogged with it. I used Murlatic Acid and got most of it out. Ordered a new Petcock and cleaning my carb. The guy who sold it to me stored it in his garage. I can`t help but think he used Seafoam in it and stored it poorly.

[@eyeamdavid]

2000 vstar650 has lights and battery cranks but wont start....help?

[@kevinsolove458]

what about the fuel pump relay?

[@jackburleson5710]

I have 1999 Yamaha v-star 650 classic so it running but one problem is I check up on fuel pump there both wire black-blue and black on negative battery I confused so must be one on positive is black-blue right? Black is on negative but both is on negative. Plz help me out. Fuel pump is work when I do hot wire test

[@coreyf3400]

Question could a semi clogged filter and smaller lines create a lean read on the spark plugs ... Or is that just the wrong heat range? I've got a weaker rear cylinder sent the scope in looks like there's a ring on top of the piston but no scoring ect ..

[@jordanestrin505]

How much fuel should be put out by the fuel pump when it primes cant find the info anywhere

[@retrotechandelectronics]

Its not much, its just a supply to the bowls of the carbs.

[@jordanestrin505]

@@retrotechandelectronics i was told there is a spec so you can assure its pumping the correct ammount or it may lean out at high speeds which is whst mine does. So if you check the flow for 5 secs and multiply it you get a certain fl/oz per min reading and can more accurately diagnose the pumps condition. My bike starts and runs fine but at about 45 its boggs out and almist dies...ive replaced coils, plugs, and main pick up as diagnosed in your other videos... still have what seems to be pump issue as carbs have brand new rebuild and perform well...

[@retrotechandelectronics]

@@jordanestrin505 consider the amount of fuel consumption if this pump was doing little more that topping off the bowls at 45mph. If it’s not flowing it’s broke. If it’s flowing, you have other issues. If you are looking at cc’s per minute, no bike consumes that quantity

[@TheRoboticwolf13]

Where do you recommend I buy the fuel pump from, I have a 1998 model, same bike. Called Yamaha and they told me it's discontinued

[@retrotechandelectronics]

20 came up when I typed vstar 1100 fuel pump into google.

[@Shawn855]

Can you make a video detailing how to install a tachometer on the vstar please? :)

[@retrotechandelectronics]

Both of mine have one, the next time I come across one ill document it.

[@usedcoma9461]

Would it be my fuel pump relay if I turn the key on and the bike comes on but the fuel pump doesn't cycle.

[@retrotechandelectronics]

Folow the procedure step by step to determine the cause of failure

[@adventurewithlee]

Strange, tested voltage at plug for fuel pump 12 when turned on then drops to 8 then takes a long long long time to reach zero

[@johnfreeze3021]

I have an 09 Yamaha V Star. I replaced the fuel pump the new fuel pump works but clicks when you first start the bike a clicks a couple of times quickly then slows down to every second or every other second just a tick tick tick wondering if it's a relay do you have any idea I watch the whole video but did not see the relay any help would be appreciated thank you

[@retrotechandelectronics]

That’s normal. That’s full pressure with the floats stopping further fuel from moving through.

[@sagfa1128]

hi mate....i just assemble new fuel pump but i had problem with overflow for about 4- 5 second everytime i turn on the key.....is it problem from new fuel pump or carb....?hope you can help me with some advise or solution

[@retrotechandelectronics]

That sounds most likely to be a float bowl issue.

[@philspaseo2377]

Would this cause a crank, no start issue?

[@jeffreyhensley8789]

Super video and presented about the best that I've seen - made the process easy to replicate and get the bike running again. One question - is there some sort of filter just on the inside of the carb opposite of where the fuel line connects? The bike runs at idle with a funnel and hose direct to the carbs but bogs down when giving it gas. Then when I hooked the funnel up to the fuel pump it pumped gas through to the end of the hose at the carbs. But when hooked to the carbs, the fuel doesn't flow from the funnel - making me believe that the entry to the carbs is blocked or maybe---the float needles are stuck? Any ideas?

[@retrotechandelectronics]

I have other carb videos that break down the carbs to the component levels where you can see the individual screens behind the float needles.

[@ramos1492]

Hi. I have a problem on my 2009 Yamaha v star 650. It turns off while it’s running. And after just shaking it Stars again Have you an idea about it?

[@twiingeneticist1417]

Check your voltage regulator. They say it's a common problem with the v-stars

[@twiingeneticist1417]

Dang I just realised this question was posted 2 years ago 😂

[@jaudielcastellanos24]

So I have a 2006 and I have an issue with my tank pressurizing and depressurizing depending on the weather......in the cold the tank will have a vacuum which dents my tank badly. And in heat and pops them back out almost all the way....HELP! :(

[@retrotechandelectronics]

Replace your gas cap

[@chiefjoseph8154]

I know I’m late to the party. But…..I just ran the fuel line via gravity. No issues at all. Runs fine.

[@retrotechandelectronics]

Yamaha did not spend all of that extra money and add complexity for nothing. Inerta at speed and high rpm's will cause issues.

[@kristaheffley2419]

Any way you can show how you bipassed the fuel pump?

[@retrotechandelectronics]

By running a supply of fuel directly into the carbs.

[@JoseHernandez-mv2um]

Good video I have v star 650 it jerks at high speed 79/80 miles and it doesn't run it jerks more

[@coreyf3400]

That's at the top end of the gearing for it ... Mine darts from side to side

[@damadpsientist]

I heard nothing when I turned the key but the fuse is fine.

[@retrotechandelectronics]

It might already be fully primed. Drain a little from the bowl and try again.

[@jamesschilling391]

Found that there is no way to get at the fuel line on the carb without removal of tank

[@Ezilth]

I really appreciate your videos man! I had a question for ya though. I've got a 1999 yamaha vstar 650 and after purchase came across something odd. It has the fuel filter between the gas tank and the fuel pump, but also has what appears to be another fuel filter between the fuel pump and the carburetor. Have you ever come across this and would know why it exists? Is there a way I could contact you through an email or is this good for you? Either way for me. Thanks again for this video and for reading!

[@retrotechandelectronics]

Generally on older bikes previous owners add filters not knowing there are others up or downstream. They start to collect over time.

[@2liter8]

Oh I thought I was at a Maytag washer repair video. LOL

[@retrotechandelectronics]

I have one of those as well.... kzbin.info/www/bejne/rWPYk6Vnjshmras

[@motohex6366]

What if the pump doesn't click when the key is turned on the on position but when the kill switch is off it does? And then after the pump primes it doesn't keep flowing after 😂 that's what I'm dealing with

[@adventurewithlee]

Sounds similar problem to me, did you solve it

[@oscaranciso4038]

I dont hear any clicking

[@retrotechandelectronics]

Are the bowls full, drain them a bit and try again.

[@timsmoen]

No mention of the TPS, or the Carburetor Heater System.. All of what is covered is basic knowledge to me. I’ve owned 5 motorcycles before buying a Yamaha V Star 650. The Yamaha is the first motorcycle I’ve owned that has a TPS & Carburetor Heater System . Would like to see a video covering these two aspects.

[@retrotechandelectronics]

Because it received its own dedicated video......... kzbin.info/www/bejne/f6ComKCNnJh8mMk

[@i2308Matt]

I put a new pump on and the bike still won’t start. It’s like the carbs still aren’t getting any gas !!! My pump might tik one time or maybe 2 but that’s it. Please help me

[@retrotechandelectronics]

If the bowls are filled it won’t tick. Drain the bowls and try again

[@i2308Matt]

@@retrotechandelectronics the hose that runs to the carbs seems like it might be plugged or something cause it doesn’t seem to be getting enough gas to stay running. If I take the hose off the carbs and run it straight into a can it gets lots of gas but doesn’t seem to do what it should to start the bike.