Question about 1983 Suzuki Tempter GR 650

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What is the original main jet size in the carb.

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Posted on Jan 02, 2017

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SOURCE: How to remove idle jet?

The idle jet is located in the bottom of the car. it's the recessed one in the bottom of the body. Remove your air cleaner assembly. remove the four screws. Be careful because it will be full of gas. ( well vented area.) You'll have one jet sticking out. That's your main. right next to it is a recessed jet . That is your idle. you'll have to use a small flathead screw driver to get it out. Make sure you have god pressure on the jet to break it loose. The jet itself is brass, and you don't want to mess it up. You should probably have a 45 jet with your combo. if you've been messing with the mixture screw it should be set around 1 & 1/2 turns out from lightly seated.

Posted on Jun 27, 2009

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SOURCE: yamaha yz 125 1994



Can I get a “very helpful” rating on this answer? Thanks!

Posted on Jul 06, 2009

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SOURCE: 1993 Triumph Trophy 900 Help I need the Carb main

is this a 3 or 4 cylinder engine - can you give the exact cc, i have some data but not sure if its right.

Posted on Jan 24, 2010

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SOURCE: triumph speedmaster 865 twin

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Cylinder #1 140, #2 125

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Posted on Aug 12, 2010

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I have a 1980 rm125 and I have a 140 main jet on it is that the right jet or if not please tell me the right stock jetting.

You should really have the workshop manual if you are working on the carb. Not only will this tell you the correct main jet size, you will also get the pilot jet size, mixture screw, and jet needle positions. All of these should be checked if you're taking apart the carb yea?

Mar 10, 2015 | Motorcycles

1 Answer

How do I find the original jet size for the 1957 Oldsmobile j2 center carb?

boy, you're not asking A LOT here...
I don't even know where to send you besides google forums

Oct 27, 2014 | Cars & Trucks

1 Answer

1991 Honda NT 400 Steed main jet size

Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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May 06, 2014 | 1991 Honda NT 400

1 Answer

17.5 carb jetting speedfight 3 rs ac

the carby would have had the correct jet installed for the venturi size
It would have been better to leave it at that and then cut back in jet size
air filters do not affect performance unless they are blocked and it is a fact the so called high performance air filters let larger dust particles through and that cause a shorter engine life
mufflers can be changed to get better performance but it can be a trade off for noise
price is no guarantee of better so consider going to a bike shop that has a bike dyno and asking what muffler make and design will give the best increase in performance then have the bike tuned to get max performance from the muffler and new carby
the real way to get performance is not by guessing but by running the bike on the dyno so all performances can be graphed and improved upon

Mar 24, 2017 | Motorcycles

1 Answer

2010 ktm 65 bike hesitates when you give it throttle but when it hits the power band it takes off.

It sounds like moving the main needle clip position may solve this if it's jetted properly. Remove the slide assembly from the top of the carb, pull back the spring and remove the cable. There will be a retainer clip that holds the e-clip and the needle in the slide. Remove that clip and the needle will slide out. Note the original position of the e-clip on the needle, remove it and move it down 1 position. This will raise the needle in the main jet and richen the mixture on acceleration. Reinstall and repeat adjustment until satisfactory acceleration is achieved.
If moving the needle position doesn't solve it, a larger main jet is required. Put the e-clip back to it's original position. Remove the main jet thru the 17mm drain bolt in the bottom of the carb, note the size stamped on it and get the next larger size. A selection of main and pilot jets a couple sizes up and down from stock is always handy to keep around with the 2-strokes as they are sensitve to temperature change.
Always check the condition of the spark plug when making jetting changes. Start with a fresh plug and run it for 10 min at normal riding RPM. Tan is good, black is rich and white is too lean. A lean condition is really bad and must be corrected immediatly. Good luck!

Jun 08, 2011 | KTM 300 EXC Motorcycles

1 Answer

1986 yamaha tt225 I need carb specs please

Not sure exactly what you are needing? Carb size? Jet sizes?Float adj? Also ,is this an '86 TT225S? If so the carb is a 40mm Mikuni, the Pilot/Slow Jet is a #42, the Main jet is a #118 Can you be more specific on model and what you are looking for if this is not what you need?

Sep 17, 2009 | Yamaha TT-R 225 Motorcycles

3 Answers

1983 suzuki gs 750 New airpods and jets. Bike not running right

You are dealing with Suzuki vacuum carbs, you cannot just replace the air box and re-jet. What you are running into is there is no pressure to raise the diaphragm because there is no restriction to create such vacuum. Either put the stock box back on or go to the biggest main jets you can buy. Sometime even when you get stage 3 jets you still have issues. Vacuum carbs are not made to run with no restrictions.....putting aftermarket exhaust on it will make things much worse.

Jul 24, 2009 | 1977 Suzuki GS 750

1 Answer


  • First I would go get stock plugs from the dealer. Plugs with incorrect heat range can cause overheating.
  • Drain the oil and replace the oil filter. Refill the crankcase with fresh oil. Also be sure exhaust gasses are getting through the exhaust pipes okay
  • Check the spark timing. and clean or replace the air filter.
Your mechanic probably installed carb rebuild kits in each carb. This is good but the correct main jets may not have come in the generic kits he bought. Too small a main jet can cause overheating. Pull the float bowl of whichever carb is easiest to get to. Remove the main jet and look to see what size it is. There will be a number i.e. 3.0 stamped on the jet. Call your dealers parts department and ask what size main jet is stock. The smaller the number, the smaller the jet. Re-jet the carbs if needed.

I hope you can rate this solution as a "FixYa". Thanks!

Mar 17, 2009 | 2001 Suzuki GSX 600 F (Katana)

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