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xj750

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Thread
1982 xj750 seca coughs only when I hit the off switch

So this is a really weird issue for yall. I got this bike about a year and a half ago and have been working on her off and on through that time....

Thread by: riley patterson, Jun 23, 2026, 2 replies, in forum: XJ Technical Chat
Thread
Yamaha XJ750 MidMax 1983 Carburetor problem

Allright so... I'm literally out of ideas. I'm from Saint-Jean-Sur-Richelieu Quebec, Canada. I had a problem with a float and some fuel inside...

Thread by: Simon McGraw, Jun 5, 2026, 3 replies, in forum: XJ Technical Chat
Thread
Wanted XJ750 Transmission

Hi all, I am looking for new(ish) gears and shift forks for the ‘83 xj750, as brand new ones are crazy expensive and ones in fairly good...

Thread by: Xander S, Jun 1, 2026, 7 replies, in forum: For Sale, Trade/Swap, Wanted
Thread
1983 XJ750 Slipping into Neutral at High RPM

As is in the title, my bike, which has previously been running well, is now having a transmission problem. When I accelerate and try to shift to...

Thread by: Xander S, Jan 15, 2026, 10 replies, in forum: XJ Technical Chat
Thread
TCI Swap TYPE TID14-06 5G2-10 and TYPE TID14-02 4H7-10 Start @6000RPM

Hi All After replacing the caps and transistors in these non starters TCI's they now immediately start at 6000rpm. I can Rev the engine a little...

Thread by: Jeremy Younger, Oct 26, 2025, 4 replies, in forum: XJ Technical Chat
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Which TCI is this? Please help Identify which unit it is.

Hi all, I just pull this TCI apart and it is totally different to the others in my XJ750s there are more capacitors, different resistors, and...

Thread by: Jeremy Younger, Oct 25, 2025, 2 replies, in forum: XJ Technical Chat
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1982 XJ750 I'm trying to install the carb to cylinder transition piece Xj750

NA 1982 Xj750 Seca I'll call it the manifold boot, seeing as it is both a boot and a manifold! Huzzah! I'm trying to install the manifold boots...

Thread by: Eric Maro, Aug 23, 2025, 1 replies, in forum: XJ Technical Chat
Showcase Item
1983 Yamaha Midnight Maxim

All original. 22,000 miles. It was given to a friend of mine. I bought it for $500 because I love Jap 80s steeds. Owned a few other models along...

Posted by: Midnight Maximum Mayhem, Jul 1, 2025 in category: XJ Garage
Thread
Xj750j problems

Hey everyone new account I’ve never used a forum or anything I’m just trying to figure out my bike and I e used this site a lot for help but now I...

Thread by: Beatzbydaddio, May 23, 2025, 2 replies, in forum: Hangout Lounge
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Handlebar emblem for '81-'83 XJ750 Seca

Uploaded another one of my 3D models for XJs on Thingiverse. This one is for a replica of the emblem that covers the screws on the handlebar pad....

Thread by: co.dirtbiker, Oct 15, 2024, 6 replies, in forum: XJ 3D Printing & STL Files
Thread
Custom Garmin Zumo 396 mount for '83 XJ750 Seca

Last summer I rode my Seca 750 from Colorado to Iowa to see the National Motorcycle Museum before they shut down for good. Fun ride, and the...

Thread by: co.dirtbiker, Oct 7, 2024, 1 replies, in forum: XJ Modifications
Thread
81 XJ750

Hey Noobie here. Bought a 1981 XJ750 that sat for 8 years. The bike cranks over, but I have no spark. Great conpression. Removed the safety relay...

Thread by: JackSamo, Aug 24, 2024, 45 replies, in forum: XJ Technical Chat
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1983 xj750 seca no spark on 2 &3

I put new coils an sparkplugs on the bike, then It lost spark from 2&3. I swap the coils. Still only gives spark to 1&4, so I know the coils are...

Thread by: JesseM, Jul 21, 2024, 2 replies, in forum: XJ Technical Chat
Thread
Need xj900s 94-01 ignition wiring diagram

Hi all, I have bought a stolen and recovered 1994 xj900s in hopes on using the engine and loom in my 1982 xj750 bobber build. Being stolen and...

Thread by: Tomsullivan, Mar 13, 2024, 2 replies, in forum: XJ Technical Chat
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Wanted 1983 Xj750M muffler

I am looking for a 4-1 muffler that came on the xj750 midnight maxim. Mine fell off on the highway, and like an idiot, I didn’t realize.

Thread by: Xander S, Feb 21, 2024, 3 replies, in forum: For Sale, Trade/Swap, Wanted
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My 1983 XJ750 Maxim Thread

Thought I’d consolidate any more posts about my bike into one thread, seeing that I probably will need about a million posts to get her rolling...

Thread by: Xander S, Oct 1, 2023, 12 replies, in forum: XJ Technical Chat
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1983 XJ750 Maxim Speedometer Reading too Fast

I just got this bike recently, and it was apparent that it had been dropped, but the stock gauges were not on the bike initially, the person I...

Thread by: Xander S, Sep 6, 2023, 17 replies, in forum: XJ Technical Chat
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Help decoding VIN

Hi I've had a look at the VIN decoding page and I'm so confused. Would anyone be able to help me? I've inherited a vintage XJ750 and want to...

Thread by: TMM, Jul 20, 2023, 1 replies, in forum: XJ Technical Chat
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Random wires?

Hello everyone, I am finishing up re-building a 81 xj750. I have noticed that there are 2 wires on the left side of the bike near the gear...

Thread by: Hector Mejia, Jul 7, 2023, 45 replies, in forum: XJ Technical Chat
Thread
XJ550 Maxim Caliper Rebuild

Hey, y'all. Just a quick questions on brake caliper rebuilds: Does the flat side of the piston or the "cup" side of the piston go against the...

Thread by: j_ham, Jun 22, 2023, 7 replies, in forum: XJ Technical Chat
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82 XJ750 Brakes

Hi! I bought my bike recently, fixed the carbs and got it running. I realized the front brakes weren’t working so I bled them. Now that I bled...

Thread by: wesley shriver, Apr 18, 2023, 6 replies, in forum: XJ Technical Chat
Thread
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
Thread
XJ750 Maxim overcharging

I have a 1982 Xj750 Maxim and I am having problems with the electrical system. I just recently bought this bike and realized it was charging to...

Thread by: John Xj750, Sep 12, 2022, 1 replies, in forum: XJ DIY How-To Instructions
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Passenger Foot rest

Hey guys, I am missing both passenger pegs, and I am trying to find out what size pegs I would need to mount up to the existing bracket. Would...

Thread by: Tiavarone, Aug 31, 2022, 4 replies, in forum: XJ Technical Chat
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XJ750RL To R Conversion Question

Hello, made an account just because i think im a bit hooped and need some answers. I have a 1982 yamaha XJ750RL with that stock yamaha front...

Thread by: Thynuggetman, Aug 16, 2022, 3 replies, in forum: XJ Technical Chat
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1982 Yamaha Seca

Hello all, I am new to the forum, I recently just purchase a 1982 Seca 750. I am look to swap out the bars to drag bars. I haven't pulled the...

Thread by: Tiavarone, Jun 30, 2022, 22 replies, in forum: XJ Technical Chat
Thread
1982 XJ750 Seca Rear Brake Switch

Hello All, I recently purchased the bike and noticed the brake switch was bad on my bike and bought a new one. Question is how do I install the...

Thread by: Tiavarone, Jul 15, 2022, 2 replies, in forum: XJ Technical Chat
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83 XJ 750 Midnight Maxim

First time posting. I have an 83 midnight Maxim. I recently started switching spark plugs and got them cross threaded and did a number on the...

Thread by: David Watson, Jul 6, 2022, 1 replies, in forum: XJ Technical Chat
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1982 XJ750 Seca - won't start- defies laws of universe

Brief history I bought the bike a few months back, it's only done 15k Kms.. apart from some dodgy paint, the bike is in immaculate condition...

Thread by: aaronoz80, Jun 25, 2022, 25 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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Yamaha XJ750 1983 Midnight Maxim

Quebec,Canada 19,000 km 11806 miles

Thread by: Simon McGraw, Jan 12, 2022, 15 replies, in forum: Hangout Lounge
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1982 Yamaha XJ750 Seca won’t idle

Hey guys, very new to this but looking for help… I bought an 82 xj750 seca as a project motorcycle: she didn’t run when I bought her. I’ve...

Thread by: Luca C, Jan 4, 2022, 7 replies, in forum: XJ Technical Chat
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1983 XJ750 Maxim For Sale

I have for sale a 1983 XJ750 Maxim with a clean VIN I bought this bike back in March from a retired motorcycle mechanic with the hopes of turning...

Thread by: LWR-750K, Oct 3, 2021, 0 replies, in forum: For Sale, Trade/Swap, Wanted
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No Tail Light, but Brake Light Works

The tail light on my ‘82 XJ750 stopped working a few days ago. I still have a brake light when the brakes are applied, but no standing tail light....

Thread by: Andrew Lake, Aug 3, 2021, 8 replies, in forum: XJ Technical Chat
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Starter Issues

Hi all, I have an ‘82 XJ750. My starter has been having issues lately. On a cold start, the starter will not get the bike started. After...

Thread by: Andrew Lake, Jul 28, 2021, 9 replies, in forum: XJ Technical Chat
Thread
Rebuilding my xj750 In my 82 Seca

Alright so im giving up on trying to replace the starter clutch springs and rollers thru behind the alternator. I couldnt get the rotor off so I...

Thread by: nothinbutjets, Jul 5, 2021, 2 replies, in forum: XJ DIY How-To Instructions
Thread
1982 Yamaha Seca xj750 starter clutch repair

Alright so I am new to this website and also to the world of bikes. So I just purchased a 1982 Yamaha Seca. I got it for $100. lol I think bike...

Thread by: nothinbutjets, Jun 17, 2021, 24 replies, in forum: XJ Technical Chat
Thread
XJ750 With Locked up Engine - Advice to a Beginner

Good evening all, I am brand new to owning a motorcycle. I've ridden a bit but this is my first bike and it's in rough shape. My hope is to use it...

Thread by: Jack Duane, May 26, 2021, 21 replies, in forum: XJ Technical Chat
Thread
XJ750 Brake Calipers, Does the XJ900 fit?

Hi, Just a quick question. I am putting '83 XJ750r Forks on my '82 XJ650 and wanted to upgrade the brakes to dual caliper. I have the xj750 rim,...

Thread by: Rowdy Beaman, Apr 14, 2021, 2 replies, in forum: XJ Technical Chat
Thread
XJ750 Motor, Carbs, Exhaust

Found an XJ that has been sitting for a bit. No front end no title but the guy says it ran before it got abandoned. Lemme know if you're in the...

Thread by: Crackjack, Apr 10, 2021, 9 replies, in forum: For Sale, Trade/Swap, Wanted
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Newbie questions

I'm going to check out and probably buy my first bike today I'm looking at 1982 yamaha xj750 maxim looks real mint in the in pictures and for 1000...

Thread by: Joseph Draher, Mar 16, 2021, 6 replies, in forum: Hangout Lounge
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Any tips for bending clutch nut locking tab

I started trying to bend this nut locking tab over by propping the screwdriver against the clutch basket and the tab and smacking the end of the...

Thread by: eigenseca, Jan 21, 2021, 3 replies, in forum: XJ Technical Chat
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'84 XJ750RL Issue

Hello everyone, I regularly ride my '84 XJ750, but have started having an intermittent issue where the bike suddenly loses power, and then snaps...

Thread by: Matt Biller, Nov 13, 2020, 2 replies, in forum: XJ Technical Chat
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For Sale 82 XJ750 & 1100 combo parts bikes for sale

Have a 82 XJ750 and 1100 for sale. Both parts bikes, but the 750 is close to running. I got everything moving until i realized the 750 had no...

Thread by: BarnfindXJ, Sep 4, 2020, 1 replies, in forum: For Sale, Trade/Swap, Wanted
Thread
Wanted New Exhaust for XJ750 Seca

My exhaust is busted. Rusted to hell but the real issue are the holes which are covered by the clamps WHICH are also rusted so I'm afraid to force...

Thread by: scoobydew, Aug 21, 2020, 2 replies, in forum: For Sale, Trade/Swap, Wanted
Thread
Need help with wires getting to hot on my Xj750?

So had this bike in my garage growing up and I never really knew what it was. It was always just a motercycle to me that was always there. Now...

Thread by: Jacob Talley, Jul 24, 2020, 22 replies, in forum: XJ Technical Chat
Thread
XJ 750 Seca Earth/Ground connections

Hi, I've been trying to diagnose a charging issue on my Seca 750 - the battery appears to be undercharging. I have a Haynes Workshop Manual and...

Thread by: Chris_H, Jun 16, 2020, 7 replies, in forum: XJ Technical Chat
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Mixed year fork swap

Hey all, So I have a, according to the vin number, 83 XJ750K, and also according to the vin 10/82. My problem is, I currently have forks on the...

Thread by: Bleechmint, May 26, 2020, 6 replies, in forum: XJ Technical Chat
Thread
83 XJ750 cafe racer project!

Well after getting my xj750 back running while being under this stay at home order for Covid-19 I found out my front brake master cylinder was...

Thread by: fstsparky, Apr 14, 2020, 10 replies, in forum: XJ Modifications
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I need some guidance with my bike.

[MEDIA] TLDR: Been fighting with the bike for a year to try and get it running right while throwing spare money at it when I get the chance....

Thread by: Maxwell Partridge, Apr 4, 2020, 79 replies, in forum: XJ Technical Chat

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