Carburetor Rebuild on 4-7HP Tecumseh Snowblower Engine Part 2/2

[@TSmithDesign1]

Your videos are much appreciated! I bought a 20 year old Simplicity snow blower last year. It ran great for a few storms. Then it ran rough and gas was gushing out of the carburetor bulb. I had no idea what was wrong. Looked up KZbin for help and discovered your videos for rebuilding carbs. The brass float wasn't floating because of fuel leaking into it. I followed your videos for taking apart, replacing the float, adjusting the idle screws, governor arm, and throttle screw. It started on the first pull and is adjusted just right. I've never done anything like this before so congrat's for posting these videos!

[@ryanmearsarchitect1584]

Thank you - I have never commented on a video before - you do an excellent job doing these videos, explaining and showing what is going on. Your delivery of information is first-rate. Thanks again.

[@donandheather]

Thanks for the clear set of instructions. Our tired old snow blower runs like a new machine. We bought a kit for $20 and rebuilt the carb according to your instructions. This will make the rest of the winter in Anchorage a lot more bearable.

[@marathoner43]

Just did this on a 1978 Ariens with a H70 Tecumseh. Your video was a great help. After the rebuild and replacing the float because there was gas inside it, the old beast is running like a champ. Thanks for such a detailed, easy to follow video!

[@nassau40]

Great Video. I have now completed my small engine repair course. Your videos touch on so much more than the material we were given. Thank you, Jason from Manitoba

[@jcfornow]

Thank you so much for making this video! Excellent job of walking us through the process. I have a 1978 Ariens snowblower - 5hp Tecumseh engine with the exact same carburetor. I have never worked on a carburetor. Thanks to your video not only did a I take it off, throw a kit in it, and re-assemble it. It fired-up on the third pull!!! It don't leak or anything. Again Thank you.

[@garyf5192]

That's a great video! Our snowblower sat outdoors, partly covered for a number of years (at least 10) and with fresh gas did start and run for a few moments briefly this fall, but then wouldn't start at all. I got a rebuild kit and new float and followed the video instructions and it started, and ran, on the the first try; and restarted easily. So thank you very much for the excellent presentation. It was clear, and I especially appreciated the close-ups showing exactly what goes where. Also appreciated your explaining that drill bits could be used if the special tool wasn't available--it wasn't.

[@spparodi]

I'll admit. I have ALWAYS DREADED learning how to work on a carburetor thinking it was going to be super complex. Watching this has given me the confidence to go tackle the issue with the snowblower! Thanks for posting this!!!!!! If I would have tried to do something like this, I would get bleeped out the entire time while getting frustrated LOL

[@Speedfreely]

thanks...it was the float..got the new plastic version. Now my engine starts up in one pull...thanks so much! You saved me a ton of money by teaching me how to do it myself! :)

[@pericarditis2009]

Thank you for sharing your knowledge!! I rebuilt my first carburetor and has brought new life to my Sears Power Brush! With sincere gratitude...THANK YOU!

[@jackmortimer329]

Best video on the subject I have found. Helped me finally figure out how to put the little piece on the float. That little spring was a mystery to me until I saw your detail of this area. Thanks for helping me get that engine running again.

[@johnworden4954]

I have an Areins ST724 that has the same carb. I couldn't figure out how to assemble after taking it off so my son could clean it. Your video solved the adjustment problem and was awesome in helping me to get it back on the engine.

[@DesertDigger1]

Great video Dony.I recently purchased a used rototiller with the carb detached,got it home,installed the carb and would only run when gas was poured in the carb.I took it back off,ordered a kit,installed it,still the same thing,took it back off again this time I removed the welch plug and to my surprise their was a live small grub worm living under it along with dirt,strangest thing I ever saw! Cleaned it out,back together and runs like a champ now.True story.

[@donyboy73]

lol

[@mckayguitars7488]

Great Video. Saved me a lot of frustration in repairing and keeping my 40 year Craftsman 7/26 snowblower running. Carb is repaired and running great again.

[@chrisweber9176]

You talk about installing the needle seat with the ridge facing the bottom of the carb. To me, it looks like you installed it facing the top of the carb. You did have the carb upside down in the video. If the ridged end goes into the hole first, then it is truly facing the top of the carb. Is this correct? Other than that point, it is refreshing to see someone present material like this in a professional and methodical approach. Keep up the good work. Chris

[@slvrearview]

Thanks for these videos donyboy73. These are some of the most professionally done DIY videos on KZbin and I admire your motivation to help people like me (non-professional) make basic repairs to their own equipment. Blessings!

[@donyboy73]

you're welcome

[@raymondfrank3860]

The mechanic returned my machine and sAid he was frustrated with it. I followed your instructions cleaned emulsion tube and a blocked primer tube My machine started first pull THANKS

[@donyboy73]

raymond frank maybe you're the real mechanic

[@4429hi]

All your videos are great and full of information don, I don't understand how anyone could dislike them lol

[@donyboy73]

usually jealous and boring people dislike them

[@velox731]

BRAVO! Dony, you do very nice work. Thank you for sharing your knowledge. We all appreciate your wisdom and your ability to teach. We have learned so much just from watching your videos. It's also nice to know your videos are available for a refresher course ;)May God continue to bless you, your family and your business. Gracias, Armando.

[@s37d]

dony quick question - my craftsman lawn mower with similar tecumseh carb got wet from rain, then I went to start it and it was about to start then gave a loud pop little explosion and white cloud came out the muffler and it wont start anymore - do you think it was moisture that got in there and what did it destroy? ty

[@1icepounder]

I've watched several of your videos so far and they are great. Your work is very thorough and clean. Thank you.

[@Owentraxxastamiya]

Your videos are so helpful all I have to say is thanks :)

[@JoePolvino]

Excellent guide! Only advice I would add would be to almost completely unscrew the main needle valve in the bowl nut before screwing it onto the bowl. If the needle is too far in from the factory, you can ruin it when you torque the bowl nut.

[@1575murray]

Also the idle mixture screw needs to be installed with the bowl facing straight down otherwise the emulsion tube can be damaged.

[@automationguy7718]

Great video!! My snowblower had been whimpering for a while, and it is running strong now!! Thanks for sharing your wisdom.

[@Ken_in_Wisconsin]

Nice video. Thank you. I rebuilt mine (5hp MTD snowblower) and all seems ok now. One difference I noticed is that my fuel bowl nut only seems to have 1 hole. But I can make the engine blow black smoke by richening it. So I think it's ok. One question. The throttle lever that sticks out of the sheet metal covering is broken in half. Do you know where I can get a replacement? I do have a photo, but it won't let me post a link to it in the comments here.

[@allanstuart3808]

Thank you, I have a MTD snow blower from the mid 1970s and the information and guidance you provided helped to keep it running. Thanks again!

[@robertzidle3796]

Most professional self-help video series I've seen. If you're not teaching engine mechanics in school, you should be. Thanks for the help. Bob Z.

[@donyboy73]

thanks bob

[@johnhouli3450]

Hello Don and all in the morning I will start my cleaning on my 6 hp torn snow throw built in 2000 I believe I will not remove for now I will remove bol and clean and float and needle and spray carb clean. I will try this way first. Then put back and removed all gas with a baster add fresh gas a bit and remove again. Then add more fresh gas just enough to see if it starts. Plus new spark plug. Don thank you for all you do for us. Snow starts tonight.

[@88finger]

Thanks dony, i adjusted the idle today as your video show us, my snowblower run as a new one!!! Perfect, thank you for your experience!

[@bigredc222]

When you adjusted the float, it looked like you had to push down on it to get it to touch the adjusting tool or drill bit. Did I see that right?

[@donyboy73]

thanks, greetings from Canada

[@ryanr5373]

Donyboy73 great videos that's for posting them for us, I have a 1977 Ariens snowblower with the same card in this video but mine doesn't have a primer, now I went through and cleaned everything replacing the gaskets, float needle and the seat, also put new fuel lines, filter, and shut off valve and got it running but my problem is it'll only run on full choke I tried cleaning the carb three times thinking I missed something and I have the same issue, do you have any suggestions thank it'll be greatly appreciated, Thanks Ryan R

[@Deadbuck73]

I noticed when you were reattaching the linkage there was some play in the governor arm... Mine doesn't seem to have any play on my 7hp that I am working on... Do you have any videos about the governor for these older 7's? If not could you cover it an upcoming video? I suspect I'm gonna need to work on this next...:) thank you again!

[@deadman12078]

Had to replace the needle and seat on my snowblower. Thank you for the tips. Didn't do a complete teardown... was just aiming to fix the gas leak and it wouldn't start. After the snowblower started right up to my surprise. The old seat was completely clogged. Forced it out with compressed air which made the bowl float leak. $11 in parts for the two gaskets, clip, needle and seat...

[@donyboy73]

+Clayton εжз that's good

[@deadman12078]

donyboy73 Had to replace the worm gear too but that's another story. Nothing like a weather report to light a fire under your butt.

[@donyboy73]

that's good man, is there a video of them up?

[@whasumara73]

Hello Dony. thanks for the instructions. I have a (I believe it's 5HP) MTD Snow King Model 317-550-000 with the Tecumseh engine. I was given this snowblower. It had sat for years. I cleaned the carburetor, but it still won't run good. Perhaps I didn't do a very good job...not like you did. I'm going to get the repair kit like you did. The main problem with my carburetor now is that it will only run on full choke making the control lever useless. When I try to "off choke" it dies. I believe I have everything out of adjustment now as I've been tweaking it to make it run on full choke. Any other pointers much appreciated. What I'll be doing at any rate is follow your video instructions. Thank you again.

[@bestfriendcastle5685]

J Nieto .

[@tonym6920]

Your videos are getting better and better Dony, great job!

[@donyboy73]

thanks man

[@Maik1968]

I like your clean and well organized workshop 👍

[@cnaray]

Between the two videos, the only thing I missed is the nut that kept turning in Video 1 and how to resolve that problem. Was the nut stripped or was the bolt broken? What was done to repair it if anything? I'm guessing the nut was frozen on and the whole bolt loosened from the engine? Last I wanted to know if you show a video on replacing the welsh plug? Thanks

[@Speedfreely]

Quick question donyboy...I rebuilt my tecumseh carb on an old H50 for my woodchipper, but I didn't replace the float. I noticed that my engine runs great, but when I shut it off, fuel continues to enter the carb and it soaks my muffler. Is this an issue with the float or float setting? Thanks for the great informational videos!

[@wbgator1]

Still looking for a vid where you pop out that round plug that s a little smaller than a dime. I am still having trouble with 2 cabs after doing everything you did. Also I have one that, if I don't turn off the gas it will empty the tank out through the air intake. I replaced the needle and seat.

[@rashmiii]

dony, carb was gummed up -never started. i used your video & now starts. replaced on 5.5hp 2007 tecumseh snowblower parts: needle kit, bowl, float, bowl nut, tiny washer in needle hole. BUT after i put back everything, new issues are: 1. engine smells like burning when started. 2. case where carb is attached vibrates. 3. throttle revs at high speed when lowered does not slow down. 4. when auger engaged - engine revs much slower. please help or do i take it to a shop - your videos are awesome

[@old64goat]

Great video, I have very poor eyesight when it comes to working on carbs, I would never be able to get that little spring in the hinge pin for the float. I have very bad luck working on carbs, things don't run after I mess with carbs...LOL.. But I learned alot Donny, Thanks for your videos.

[@herbmcmillan821]

Thanks for the information. Saved me from buying a new blower. I have a 1970 Ariens that is made very well but I had to run it with the choke partially on. Now it runs fine thanks to your video.

[@donyboy73]

you're welcome, make sure you are subscribed

[@northerbrewer]

You should buy a Gunson colortune so you can see whats happening inside the engine after you clean and try to tune the engine.

[@ncrdisabled]

Here in the catskills NY we had a hard freeze last night . It has been up in the high 70s all week even hit 83 one day . This is weird weather ! If its global warming bring it on I love the warmer weather.

[@s37d]

dony thanks I rebuilt it and now it runs but it runs way too fast, rpms are so high it sounds dangerous, so I shut it off, what do you think is causing this? ty again for your time

[@SuperRuss52]

great video, I have a question? I have a MTD, set up very similar to your craftsmen, When I engage the drive system , There's nothing to the axles, The belts are functional from what I can see but it doesn't drive the wheels . Can you help me?

[@SuperRuss52]

I did my first carb thanks to you!!!

[@boldtdesign3148]

Hi donyboy I have a Toro 521 snowblower , gas leaks out of the primer line connector and sprays out of the little hole above and to the left of it. Might I need to replace the Welch Plug and if so how do I do that?

[@catheyruiz7623]

Awesome video. I rebuilt my 1998 simplicity carb, much newer but very similiar. Thanks for making seem so easy. I was very eager to dive into this project after seeing your video.

[@davidsmyth1906]

Is there a way to bypass the safety shutoff on an Ariens 4 HP Model 922024 snow-blower with the attachment clutch engaged(auger/impeller) once the Interlock lever or Traction drive levers are released on the handles to keep the engine running? I'm fully aware of the risk but hate to disengage the attachment clutch every time just to keep the engine running. Thanks, great videos to watch!

[@53evergreen]

This was a good set of videos. Thanks Dony

[@elydanification]

I wonder if you have ever seen the Tecumseh number 670253 carburetor adjustment tool? I think it is for float adjustment but never used it . Thanks !

[@kielbasaglen6843]

Another GREAT video Don.

[@donyboy73]

thanks

[@sokey70]

Excellent videos - thank you. I got the kit and got my '74 Ariens running. I have gas leaking out and dripping from the bottom of the bowl though - thoughts?

[@MikadoRC]

Hey dony, i've got a problem with my tecumseh carb. I bought a new carb kit and replaced the float, needle and the seat. Now I can't get the bowl back on because the float won't go up far enough. I tried to push the seat in deeper, but it is right on the bottom. I put the needle exactly how you put it in your vids. What should I do ? Thanks for help !!

[@FrancoTheBoss3434]

Here in Niagara Falls we all ready have 2ft. of snow on the grass.The most we got this year is 1ft.And I snow blowed with my snow thrower

[@waterdog456]

My Tecumseh engine is on an old Ariens snowthrower (rototiller type). Donyboy, it seems like there's gas leaking from that drain plug on the bowl which the one in this video does not have. The rubber o-ring is new on the plug so could the spring need to be replaced? The entire gas tank emptied overnight on me and I can't have it leaking away like it is. Any more help is appreciated. Thanks for all of these.

[@donyboy73]

I would replace with bowl #631867, no drain on it

[@waterdog456]

donyboy73 THANKS, Donyboy! Bought a new bowl without the drain and a new gasket only setting me back 5 US bucks and it purrs like a kitten. Ready for the next snow now thanks to your speedy reply. Way 2 Go! Have a good one.

[@donhuddleston2301]

great video, my question is that my carb leaks from the top of the bowl. New gasket, have taken it apart 3 times. Any suggestions

[@donyboy73]

you're welcome and greetings from Ontario Canada

[@Snickerssatifies]

I have this in a 6.5 hp on a jacobsen blower, seems to not throw snow very far, and power issues. what do you think?

[@donyboy73]

on these engines i often find that the exhaust valve leaks and causes similar problems

[@SmOoThYwOoDy]

@donyboy73, thanks for this video. My snowblower only runs if I use almost full Choke. So I need to do a rebuild kit.

[@sv2021]

donyboy73, I have a craftsman 21" 179cc Single state snow thrower Model# 247.88780, with starting problem after the gas being sit there over a year or more. I empty the tank and fuel line and refill with fresh gas few times. Also cleaned the emulsion tube and air gas mix screw as in video with carburetor cleaner jet spray. Still its not starting. I checked for spark and see its good. Also there are no kink in the gas line or prime line. This is fairly new machine and used once only. Any idea?

[@batspid3000]

Donyboy, what kind of carb cleaner (dip/soak) overnight do you use? The one at Autozone said not to use with plastic parts and the fuel inlet on my snow thrower is plastic. Thanks in advance!

[@zx8401ztv]

Smashing, so on this type the emulsion tube does not have side pin holes like on other engines? Nice tutorial :-)

[@davidsmyth1906]

I ordered a complete rebuild kit #31840 for my 4 HP Tecumseh carb, but the parts book doesn't show a new bowl nut like your kit has! Should the bowl nut have a tiny hole between the top threads as well as a larger hole in the bottom threads and what is the purpose for the top hole? My old bowl nut shows a tiny impression which I'm unable to unclog after sitting in carb cleaner for 48 hrs. Love your videos dude, terrific job photographing and explaining, Kudo's!

[@donyboy73]

whatever the kit shows in my video is how it should be

[@MrAlittle5150]

Hi donyboy 73, I just rebuild (new needle, seat and bowl gasket) the carb on a snow blower I'm working on, and I can't get It to stop leaking gas. I checked the adjustment on the float and it was fine. I also checked the float for leaks and it was fine to. After I fill it with gas it takes a minute or so and then I see it just start to run out the throat of the carb. I have taken it apart to many time to count. any ideals? I might have to look for a used one of ebay.

[@louky650]

dony: Thanks for the video, it has let me disassemble my Tecumseh carb from a Sears edger 4 hp. It doesnt have adjusting screws and no adjustment on the bolt that holds the bowl on. Is the float measurement distance the same like you've done with the drill bit in the past? Thanks!

[@gcat95]

Hi Donyboy, great Job with these 2 videos. I have a question, if you have a fuel bowl with the push drain. How do you replace the gasket on the drain? Thank you Gus.

[@danielrobert7181]

Hi Dony, I've got the exact same veteran Tecumseh engine on a John Deere snowblower. It must have been made by the same manufacturer as yours and mine are perfectly identical. My question is what's the part number for the whole carburetor assembly ? Thanks, Daniel R.

[@johnhomes3317]

i put a carb kit in a 4.5 hp tecumseh (lawnmower) more or less the same carb in video. it will start with quick start. won't prime (replaced primer bulb) took it apart there was gas in bowl i doubled checked all passages fuel/air..reassembled still won't pump gas out of the bowl ??? i've done re-builds on the same carb type before with no problems ?? also i replaced the o-rings on the emulsion tube with the kit...???

[@rogerstillwater9890]

DonyBoy, Thanks for the video. I think there is a small error. The drill bit size to test the float is 17/64 not 11/64 as you state. At least my float looks like yours but I needed the larger bit. If you think I'm wrong, I'd like to know.

[@8xlaxx]

Enjoy the vids donyboy73, thank you. I performed all the steps in Part I & 2, and rebuilt the entire carb with kit on a Tecumseh 7HP. Installed new plug, fuel line and primer hose, fresh gas, changed oil. Cleaned the carb thoroughly. Engine will not start. The electric starter and recoil works. Any other areas to look at? Thx for the help.

[@donyboy73]

usually on the older carbs the tube is permanent, on the newer carbs the emulsion tube comes out

[@Fordfarmer9700]

hello dony question but is that a 2 stage or single stage considering its age

[@philq.3967]

Hi donyboy73, I have two similar Tecumseh problems. Both are on HS50 engines. On one, I just installed a new carburetor and it ran great at first. A week later it wants to die on full-throttle. I tried adjusting the governor and the fuel/air mix but neither helped. On the second, I cleaned the carburetor and it runs ok on 3/4 choke, but it wants to die upon opening the choke. There are no apparent air/fuel adjustment screws to adjust. Any suggestions on either issue? Thank you, Phil Q

[@FrostyTheBeerMan]

Hi Dony ! On the side of my tecumseh snowblower carb, ( Ariens brand ) I see a little valve that is covered with a very small black cover ( it seems to be rubber ) I've watched so many videos now, it may be one one of yours where you showed removing that little rubber piece and then you can unscrew that needle valve. What does that needle valve do ? what part of the carb does it operation etc... thank you for the great video !

[@donyboy73]

here's the video kzbin.info/www/bejne/fYWThId_hcxnf5o

[@donyboy73]

that screw is an air jet screw, follow me on instagram to see extra pics I post that may help you

[@FrostyTheBeerMan]

Hi Dony ! wow.... that's the EXACT video I was talking about ! -- amazing you found that with so many videos you have !! THANK YOU

[@donyboy73]

-32c here this morning

[@FrostyTheBeerMan]

*only* -24 degrees here... you have me beat ! ..... I bet your garage is heated though eh ! Dony, it's so cold in mine I can't even go out there today. Monday they say maybe -1 for my area. ( sent u a video last night .... I hope you can look at it and give me an idea ) Thank you very much if you can !

[@ironhead320]

question the white wire and the one coming off ign switch are they hooked together my engine is a h-60 they were unhooked when i got this machine

[@lkgboater71]

Another awesome vid! makes me wish I had a carb to rebuild... Wait, I do have that old lawnboy that needs some work...

[@matthewmurphy7311]

I have a tecumseh 7hp. new carb and it wont rev up enough. Its adjusted perfect idle and high. It just doesn't rev high enough. Help and thanks Donboy!

[@anniversary4]

Thanks for another great video! I'm working on my daughter inlaw's 20 yr old Toro7/24 with HSK70 engine. New carb is the way I would go for gas delivery issues but Tec has discontinued. I bought rebuild kit and proceeded as you so aptly teach on this video but cannot get more than 1600 rpm and lots of popping. I see that TEC has venturi listed as a separate part but noticed that you did (and other videos I viewed) did not remove it as you do in other videos. I also could not remove it as I have in large TEC engines. Are there any side holes in this ventury? By now I have watched tons of your videos and am pretty capable but having lots of trouble with this machine that was extremely well cared for and looks better than many 6-8yr old machines. I rebuilt carb on my aunt;s 36 yr old 7/24 Toro and that starts 1st pull consistently. Cleaned and adjusted ignition coil as well. It is an HSK70 130282U. Any ideas? I have viewed your vids on ignition issues and wonder if there is a definitive way to check the ignition module for spark present but maybe weak?

[@donyboy73]

definitely that carb needs to be cleaned and maybe install kit #631021b

[@donyboy73]

push the tab on the float toward the float itself

[@88finger]

Hello dony, is it normal when i prime 3-4 times it leaks gaz on the floor? It seem to come from the seal on the carburetor bowl. I change it but leak anyway... Maybe something is not right adjusted?! Thank!

[@donyboy73]

yes it's normal

[@donyboy73]

you may want to check the carb adjsutments

[@Frederik19951995]

Hey dony, i have a problem with my lawn mower. It wont idle, cause i didn't assemble the gaskable correctly. Its like, i cant adjust the RPM from 70% to under.. Then it just stop. It runs pretty god tho.. It a Briggs & Stratton quantum power engine

[@robertberg3794]

Hey donyboy I have a 7/24 toro that I just did an engine swap on with the same model. Cant seem to get it ideling right. I watched your video on cleaning the carb and am gonna tfy some adjustments first. Any other tips you can vive me. The snow blower also in neutral inchs foward like its in gear. Any idesa.

[@brie1984]

Hello, I'm running into an issue where even though I adjusted a new float assembly like you did in the video fuel is still coming out of the carb from the top where the choke plate/throttle assembly are which leads me to believe it's overfilling. Is there potentially something I'm going wrong?

[@donyboy73]

check all the linkages

[@jarus187]

Thanks for the great video! I was always taught never to use gasoline to clean carbs because of its volitility and lower flash point in comparison to other cleaners you could use like kerosene, diesel or mineral spirits. But I guess if your careful enough not to clean them around open flames, sparks and keep the shop well ventilated you'll be fine.

[@brookswhite6522]

Quick question: How do you unseize billy goat push leaf blower 8 horse power?

[@mtimmiller]

I need help! I recently rebuild the exact carb that was in this video. after installing a new kit and float it still leaks fuel! I took the carb to the guy who sold me the parts and he vacuum tested it @ 7psi. holds like a champ, and the float is set correctly, also I put the clip for the needle in correctly as well. any ideas! help snow is coming soon!

[@donyboy73]

might be the linkage configuration causing the overspeed, make sure it's ok

[@partwerks]

I finally got mine to run, but when I pull the throttle back, I can't get it to stay idling, and just dies? Any, thoughts, ideas, or suggestions?

[@IAMFortress]

Hey Dony, great vids. My carburetor is leaking gas from the tiny air intake hole...It just streams out and won't start. Is it an adjustment or need a rebuild? Or is the float not working? Also the governor arm is not attached to the throttle linkage but is connected to the carburetor the throttle has a bent wire thing that is all twisted up to be kept out of the way? I just got the machine its an old one but ran great last year. Its a 4hp 20 inch something like 900023 model.

[@s37d]

yeah linkage is ok I took a pic before and matched it up exactly, ahh so frustrating, hope its not the governor...could carb still be dirty?

[@Lorddarthvader1701]

I was wondering about that, I am sure his carb is probably dirty and needs a rebuild, it's gas oil mix, it starts ok in the summer but it won't in the winter

[@overzealousarborist]

did you check the gap on the plug?

[@donyboy73]

i'll have to make a video or replace the bowl that does not have a drain valve

[@ironhead320]

donyboy on the throttle linkage where can i get that long spring do they have a part number for it the only one i been finding is the throttle return spring on the shaft