[hi im a new]

Its a fours stroke engine billy, so no reed valves here.

My bad haha

[My Yamaha DT50MX Rebuild]

damn fine effort,why dont they make bikes like this anymore? the younger generation have been robbed of the experience....or maybe im just getting old

Thanks and its not finished yet! Yes these bikes are good, shame they dont make them like this anymore. Can't wait till this is finished!

[My Yamaha DT50MX Rebuild]

Here are some pictures and a video of my 1991 Yamaha DT50MX Rebuild so far!

This is at the start before we stripped it all down

My engine with new 65cc big bore kit, 24mm mikuni performance carburetor and performance air filter

My engine with new 65cc big bore kit, 24mm mikuni performance carburetor and performance air filter

My 24mm Mikuni performance carburetor next to the original carburetor

Almost stripped down

Seat before recovered

Rear mud guard rack before resprayed

Headlight fairing before resprayed

Brake light bracket before resprayed

Rear mud guard under bracket before resprayed

Rear mud guard before resprayed

New Gianelli performance exhaust front pipe

New Gianelli performance exhaust silencer

Full Gianelli performance exhaust system

Engine before slight modification

Before the nuts were removed from the Gianelli performance exhaust silencer

After the nuts were removed from the gianelli performance exhaust silencer

Here is the video of it so far which also shows the bike running with the new big bore kit, exhaust and carburetor

http://www.youtube.com/watch?v=33tOuWFCWvs

There is still quite a lot to do to it such as getting the frame powder coated and everything painted etc.

Thanks for looking, let me know what you think

[My DT50MX Rebuild]

Hi and welcome to the forum.

I have never seen a carb doubled up like that. Does it work ?

Hello yes its works great it sounds very nice did you see the vid? thanks for looking

[yamaha rd 50 lc]

eBay

[Yamaha dt80 mx- 1984]

I don't think yellow was an option from factory, i think the frame colours were: Red, Black & silver.

The red frame went with black panels and also white panels.

Black frame with blue panels and black panels.

Silver frame went with the white panels with pink stickers.

Hope this helps!

[My DT50MX Rebuild]

Here are some pictures and a video of my 1991 Yamaha DT50MX Rebuild so far!

Images -

At the start

Guess wich is the performance carburetor

Before the nuts were removed from the Gianelli performance exhaust silencer

After the nuts were removed from the Gianelli performance exhaust silencer

After the nuts were removed from the Gianelli performance exhaust silencer

After the nuts were removed from the Gianelli performance exhaust silencer

Video - http://www.youtube.com/watch?v=33tOuWFCWvs

Enjoy

[airbox and exaust]

Ebay is the answer to all your problems

[yamaha dt50mx running problems]

Hello, have you tried cleaning all the jets out and made sure there are no blockages at all because there is an idol jet etc and if the idol jet is not blocked then it will tick over but if another is blocked it won't rev properly.

Let me know what happens, Thanks.

[Which jets do i need to change]

I have a 1991 yamaha dt50mx with a big bore kit, full gianelli exhaust system, i am going to get a k&n filter for it and racing reeds. I was wondering which jets in the carburettor i will need to change?

Thanks

[1991 DT 50 LC]

Hi just got myself a 1991 DT 50 LC with the bike came a 70cc piston and ring kit + gaskets and barrel. Can some one out where tell me what size jett's I need to re-jet the carb?

Cheers Mate

Well to know that you do need to re-jet the carburettor up, you will need to do the plug-chop test, this is where you ride it for a while then check the spark plug and see what colour it is, if it is like a sutty black colour you need to go up in size on the jets, go uo in 5% bigger that the original jet. and then keep doing that till it is the right colour. It will help if you have a Haynes manual to tell you what the correct colour is.

Thanks

[Joined today, need some info]

Ebay would probably be the best place to get one.

[Hi Everyone! Need your expertise]

Hello, the tach cable should not connect to your engine it should connect to your front wheel near the brake, then into the tachometer. Hope this helps.

Thanks.

[hi im a new]

hello, yes you could start by upgrading the air filter, performance exhaust, and maybe put better reed valves on, think that's about it if you don't want a bigger engine displacement upgrade,

Thanks.

[r125]

I think the yellow and black ones are nice, but suppose it is up to you, ebay is good to get one from.

Thanks.

[FRESH NEWBIE TO THE BIKE WORLD]

Hello, more pictures would help, but i am pretty sure that this is an yamaha virago xv535, meaning the engine displacement would be 535cc, with 38bhp, producing 32ftlb (torque) a top speed of 100mph, does 47mpg and is insurance group 8, suppose thats all you need to know . Hope this helps.

Thanks.

[Hello people]

Hello, i am kind of new here i have posted a few thing but never introduced my self so i have decided to now.

I am billy, i have a yamaha dt50mx what i am rebuilding a yamaha dt80mx a yamaha ty80, a yamaha tdr250 and a honda xr250. Could you read some of my posts and reply?

Nice to meet you all and thanks.

[Starter motor turning wrong way]

i, thanks, i tried the connectors reversed but it did not work the starter motor so i put the old brushes from the original starter motor in the new one and it works, the only thing thats wrong is i had to use the back off the original one, so the screws do not go in so i will have to make a bracket

Thanks guys

[Starter motor turning wrong way]

Hello,i have a honda xr250 baja (sorry i know its not a yamaha but i dont know where else to ask)and the starter motor was knackered, so i bought one off ebay from another honda bike as it was the same measurements, as there are none about. It fits fine and everything but it turns the wrong way.... And i was wondering if there is anyway to make it turn the opposite way.

I Would really appreciate it if you could help me out.

P.s sorry its about a honda, i just know i always get an answer off this website, because yoour all very clever

[DT50MX Gianelli exhaust]

Hello, i am going to (want to) buy a gianelli exhaust (front pipe and silencer) for my DT50MX and was wondering if they will increase the power and if they are restricted somehow?

Thanks, please let me know if you know.

[Yamaha TDR 250 Carb problem]

Hello, i have a yamaha tdr 250 and it was sat for about for about 3-4 months and now when i start it, it will run ok for about 30 seconds and then cut out, yet it runs fine with the choke on, me personally think the carburettor needs cleaning but i haven't got round to that.

Please let me know if you know the problem.

Thanks.

[DT50MX carb]

Ok, so i have a 1993 Yamaha dt50mx and i am going to fit a 65cc big bore kit and a full gianelli exhaust system (front pipe and silencer) and was wondering if i am going to need to re-jet the carburettor because of these modifications.

If anybody knows if i would need to do that and any problems i may have please let me know. Thanks.

[DT50MX whining noise and speeds up at higher revs]

My dt50mx makes a constant whining noise whilst riding and speeds up at higher revs which is quite strange as i know it shouldn't do it. i have a video of it so you can see.

http://www.youtube.com/watch?v=QquWqs3Wbo0