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carbs

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Thread
XJ750 Parts For Sale

I have a 1981 XJ 750 bobber stripped. Looking to sell most parts including rear wheel, engine, starter etc and bobber frame. Also have carbs....

Thread by: Neashfella, Sep 6, 2026, 0 replies, in forum: For Sale, Trade/Swap, Wanted
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83 xj650 Turbo Fueling issues

I have an 83 650 turbo and recently ive had an issue where after driving for a bit, the bike starts to bog down and lose power if the petcock is...

Thread by: bash305, Jul 20, 2026, 1 replies, in forum: XJ Technical Chat
Thread
1980 XJ650 Maxim one exhaust much hotter than the other

Hey everyone, Thanks for all info throughout the years!! Recently i bought a 1980 XJ650 Maxim (5000 Miles!!) and brought it down from Colorado to...

Thread by: Ant the Man, Dec 22, 2025, 9 replies, in forum: XJ Technical Chat
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My 1992 Yamaha Seca II (XJ600s) will not rev past 7000 RPM

Alright, brace thyselves for a wall of text. Last year I bought an xj600s to use for commuting and pleasure. Cosmetically it was beaten to hell...

Thread by: Max B, Jul 18, 2025, 2 replies, in forum: XJ Technical Chat
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Carbs dimensions help!!

Hello. I bought some carbs on ebay for an XJ550, and they arrived intact. But on the throttle body there's this little number "130" and on my...

Thread by: Tommaso, Jul 24, 2024, 12 replies, in forum: XJ Technical Chat
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Syncronization....again...

Hi, i am new to the XJs and bought myself a -83 XJ550 who hasnt been running since 1991. I have done the typical theings like brakes, oil and of...

Thread by: brolle65, May 7, 2024, 4 replies, in forum: XJ Technical Chat
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NOOB question...

IF I have stumbled past the answer already here codified, my only excuse is that it seems I spend all my days these daze running in place like a...

Thread by: JJ Jones, Apr 26, 2024, 1 replies, in forum: XJ DIY How-To Instructions
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Poor gas mileage, not sure what else to check

Hello! First of all it’s good to be back! I sold my ‘80 xj650 3 years ago but just bought back the same one! It was abandoned in a storage unit so...

Thread by: Lanpoop, Apr 18, 2024, 21 replies, in forum: XJ Technical Chat
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XJ650 carbs, overhauled, for sale UK

Set of carbs for XJ650, fully overhauled including all new diaphragms professionally fitted by NRP carbs in UK. Spare jets and original internals...

Thread by: MarkArbroath, Jan 22, 2024, 1 replies, in forum: For Sale, Trade/Swap, Wanted
Thread
For Sale Hitachi HSC32 Carb

Hey all, I recently purchased a replacement engine for my 650 Seca (non-turbo) and the guy I bought it from threw in a bunch of extra stuff that...

Thread by: Jake Bane, Oct 21, 2023, 8 replies, in forum: For Sale, Trade/Swap, Wanted
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Cold blooded

New to The forum so please be gentle with me. becoming a better mechanic over the last couple of months since I got my bike. I got a 1981 XJ650...

Thread by: JJ Jones, Jul 5, 2023, 8 replies, in forum: XJ Technical Chat
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1983 xj750 carb jet size

Hey guys, I'm rebuilding the carbs on this xj750 mid max that was given to me. I am pretty new to rebuilding carbs so bare with me. My needles I...

Thread by: Camcam1144, Apr 9, 2023, 1 replies, in forum: XJ Technical Chat
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For Sale xj750 parts or whole

i am selling a 1982 xj750 that was my fathers. it sat for about 10 years and i decided to get it running. i rebuilt the carbs and it does run....

Thread by: David Vallas, Jan 28, 2022, 9 replies, in forum: For Sale, Trade/Swap, Wanted
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Setting One Carb at a Time

Has anybody created a procedure for setting a single carb at a time? I'm envisioning a methodology for hooking up the fuel intake into a single...

Thread by: Antothoro, Dec 19, 2021, 10 replies, in forum: XJ Technical Chat
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Wanted XJ750 compatible carbs

I recently came across an 82 xj750 seca that was in need of just a couple of parts to make it ride-able again. And I want to make it as close to...

Thread by: MissingByte, Jul 29, 2021, 3 replies, in forum: For Sale, Trade/Swap, Wanted
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New Member: Carb Sync/Vacuum Sync 83’ Xj750K

Hey there guys. I’m new here, just purchased my first bike, an 1983 Xj750 Maxim, 13k original miles, garage kept, no surface rust with slight rust...

Thread by: LWR-750K, Apr 21, 2021, 3 replies, in forum: XJ DIY How-To Instructions
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pilot fuel screw adjustment question

Hi all, The choke on my XJ550 is always engaged, otherwise the bike will stall (obviously the engine temperature is accounted for). I know it's...

Thread by: Dre42, Mar 3, 2021, 4 replies, in forum: XJ Technical Chat
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HELP! Is having a rev limiter necessary? Digital speedometer install.

Hi fellow old bike fetishists! So I'm building an XJ 900 1983 scrambler/brat style bike. Currently I am in the process of replacing the original...

Thread by: Shabby cube, Jan 6, 2021, 137 replies, in forum: XJ Modifications
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Leaking float needle or float level set too high?

On my 1980 xj650rj Seca when i start the bike up and look down the carbs, I can see gas just kinda shooting up through the main jet that the...

Thread by: WheelYeeter, Aug 12, 2020, 4 replies, in forum: XJ Technical Chat
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Hesitation at cruise

Hi all, 82 seca 750 work in progress. Carbs rebuilt with new jets, seals and orings. Synced and colortuned multiple times as I’ve had the carbs...

Thread by: jaxcob93, Jun 10, 2020, 20 replies, in forum: XJ Technical Chat
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turbo bike parts

Hi All, Thinking of buying an 82 seca turbo. Already own and worked on a Honda turbo of the same year. Was just wondering on parts availability....

Thread by: Michael R Bernardi, Jan 31, 2020, 1 replies, in forum: XJ Technical Chat
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Wanted Carbs for 1985/86 air cooled XJ700

[ATTACH] [ATTACH] Bought an 86 xj700 for cheap, solved the electrical issue PO couldn't troubleshoot. Unfortunately it sat full of ethanol for a...

Thread by: micnorian14, Jan 11, 2020, 6 replies, in forum: For Sale, Trade/Swap, Wanted
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82' xj750 maxim repairs.

I picked up this "new to me" 1982 xj750 off marketplace the other day, no battery, no starter and 60k km, but i bump started it in the driveway...

Thread by: Bix, Jul 11, 2019, 142 replies, in forum: XJ Technical Chat
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XJ750 Seca stalls when braking (only when cold)

Hello fellow XJ riders, First, many thanks for the insanely helpful information on this forum. I have a 1981 XJ750 Seca that I have been working...

Thread by: Conraderb, May 28, 2019, 12 replies, in forum: XJ Technical Chat
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FJ600 fuel injection

I'm looking at a set of R6 throttle bodys to replace the old CV carbs with pod filters since i can't seem to keep the carbs tune set after a ride...

Thread by: Sly, May 10, 2019, 8 replies, in forum: XJ Modifications
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My Yamaha XJ 750 gets to hot

Hi. I was out for a first drive after winter. One of the carbs was overflowing fuel and I found out it was the left one. When starting on cold...

Thread by: Rickard S, Apr 20, 2019, 2 replies, in forum: XJ Technical Chat
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1982 XJ750 Maxim Redline at startup

Hi everybody, I joined the forum to see if I could get some pointers on an issue I am having. I picked up this bike as a trade for an old pickup...

Thread by: Winsleydale, Mar 18, 2019, 11 replies, in forum: XJ Technical Chat
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Why won't it run?!

So just some background, I bought an 81 xj550 seca that had been sitting in a garage for 5 years and would not start. Naturally the first thing I...

Thread by: Dtperrell, Oct 5, 2018, 14 replies, in forum: XJ Technical Chat
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81 XJ550 Seca starting trouble

hey everyone, So a little back story for me, I’m new to Japanese bikes and have limited knowledge. I’ve rebuilt and customized several Harley’s...

Thread by: Random, Jul 31, 2018, 8 replies, in forum: XJ Technical Chat
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Yamaha Yx600 radian 1988

Hi,everyone my name is brad. I'm new to forums all together. I purchased a 1988 Yamaha yx600 radian 8 months ago. I bought it for 150. It was...

Thread by: Collins, Jul 26, 2018, 1 replies, in forum: XJ Technical Chat
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1981 XJ750 Seca, starts then dies

Hello all, So to start of I own a 81' XJ750 Seca, as with all old motorcycles I went to the forums and read the first things to do. I read the...

Thread by: Chacha, Jun 2, 2018, 19 replies, in forum: XJ Technical Chat
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Bend your ear ? 1982 seca 650

I went to start my 1982 seca 650 after I did my carbs new p pilot jet main new needles and now it's only firing on cylinders 2 & 4 but they all...

Thread by: Moto psycho, Apr 25, 2018, 78 replies, in forum: XJ Technical Chat
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Carbs leaking

I have an 85 xj700 recently bought. Ran ok needed work. I started with cleaning the fuel tank (rust) . After I cleaned the tank I hooked it back...

Thread by: Nickxj4420, Apr 24, 2018, 9 replies, in forum: XJ Technical Chat
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Maxim Hard Start

1982 Maxim. Carbs sonic cleaned and kits installed but I did not replace the idle screws (they are still under the factory seal). 4 into 1...

Thread by: Retromoto, Apr 20, 2018, 25 replies, in forum: XJ Technical Chat
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XJ650 Start up rev issue

I recently put together my xj650 and I started it for the first time today and as soon as i start the bike it revs up to 7k and I have to kill it....

Thread by: Daniel Diblasi, Feb 16, 2018, 25 replies, in forum: XJ Technical Chat
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Cafe racer build/carb swap

Hey everyone I just picked up another 1982 Yamaha xj750 maxim as a parts or repair bike, originally I just wanted to used the carb rack for my...

Thread by: Mustangmaster98, Feb 14, 2018, 11 replies, in forum: XJ Modifications
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Free Xj 750 engine etc

In Bryson city NC have engine and big box of parts. Pm me for buddy's email

Thread by: Toomanybikes, Nov 8, 2017, 17 replies, in forum: For Sale, Trade/Swap, Wanted
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Dropped my xj750x, now it won't start

Hi guys, Just before storing the bike for the winter, I dropped it on its side and gaz poured from the gaz tank all over the place. Took me a...

Thread by: tedre191, Apr 17, 2017, 10 replies, in forum: XJ Technical Chat
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Xj 600 frame engine carbs and more !

Ok so i have all per diversion; An xj600 engine and carbs 2 frames 1 is newly painted with few scuffs 2 sets of forks 1 already attached to...

Thread by: Ben Walker, Apr 9, 2017, 8 replies, in forum: For Sale, Trade/Swap, Wanted
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Trade/Swap Hitachi carbs for Mikuni carbs

I have a clean set of Hitachi carbs looking to trade straight up for Mikuni carbs. http://imgur.com/a/csJ3g I have an 85 700X and need Mik's.

Thread by: Michael Garland, Feb 27, 2017, 1 replies, in forum: For Sale, Trade/Swap, Wanted
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85 XJ700 Carb Help

Hello Internet! First post and it is due to my inexperience... I traded a vehicle for this bike and I received it slightly disassembled. The...

Thread by: Michael Garland, Feb 26, 2017, 54 replies, in forum: XJ Technical Chat
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'82 XJ750 Maxim Pods with Flow Straightener

Hello all, I am fairly new here given that I just inherited an 82 XJ750 Maxim in dire need of some TLC! For future reference, I will post a build...

Thread by: Dr. Awesome, Oct 18, 2016, 4 replies, in forum: XJ Modifications
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First post, seeking XJ1100 wisdom!

Hey everybody. Ive come to this site often for information and its helped a ton. I got an 82 XJ1100 MAXIM last month by trading a gun. Everything...

Thread by: Keaton, Aug 1, 2016, 19 replies, in forum: XJ Technical Chat
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Year changes

i have a 1982 xj550. I found an 81 I was going to use as a parts bike. How much has changed in the year diffrence? Bike is 2 hours away and I...

Thread by: Rrstryker, Aug 1, 2016, 2 replies, in forum: XJ Technical Chat
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Racing idle carb fix.

So I Have an xj650 Maxim with 4 to 1 exhaust and a cut airbox with a single pod filter. This is the process i used to fix my hitachi cards and...

Thread by: Chinn5, Jul 26, 2016, 3 replies, in forum: XJ DIY How-To Instructions
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bike not starting anymore

i tore down nearly the entire bike last winter and now have it all back together. the engine was not touched except for a new oil filter. tried...

Thread by: vugt47, Jul 16, 2016, 6 replies, in forum: XJ Modifications
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Idle trouble

I got my carb cleaned and rebuilt and it finally starts! The problem is that now the engine revs similarly to a stuck throttle. I don't know how...

Thread by: ChaseP, Jun 10, 2016, 6 replies, in forum: XJ Technical Chat
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wont idle but sometimes it will..

I got a xj700 thats been sitting up for three years. . drain the old gas out of the tank and carburetor. . it running. .but sometimes will idle...

Thread by: xj700newbie, May 13, 2016, 8 replies, in forum: XJ Technical Chat
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The Redback Bobber

Hi Thought I might ask for some good advice from you all. I recently bought a 1982 XJ550 that was found in a barn and hasn't moved since 2001. I...

Thread by: Jeff Roberts, May 5, 2016, 2 replies, in forum: XJ Modifications
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1986 Maxim X Carbs

I have a set off of a water cooled 1986 XJ700X The #4 Carb had the pilot screw broken off and the PO tried to drill and use an extractor on it....

Thread by: Jack Miller, Apr 26, 2016, 6 replies, in forum: For Sale, Trade/Swap, Wanted

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