nopes, it wasnt.
youre damn right you should!

Saar, I hope it wasn't a sarcastic comment C'mon, I blew an expensive CDI & you're appreciating it Lol !!!

I feel like thrashing myself & I mean it seriously. Its going to cost 3K now ; and not to mention the comic stories on carbs

@ aargee.. your patience and experiments are super admirable! absolutely unbelievable!!

Perfect Monday morning for all the problems to start I pull the choke, kick start & idle & about 15 seconds later, the engine stops. This time, I promptly look into the neutral light which is not glowing. Now I knew the fuse is blown again. So I take scooter to office that day giving rest to my Rx.

I come back in the evening with 4 fuses (that's all the shop had ) & plug a fuse & then start. It doesn't & to make matter worse, the neutral lights are intermittently switching off. This is a loose connection!!! Damn

So finally, I see where the connections are loose, tighten them & then start, but it still doesn't!!! The neutral light is steady by now. Ok, time for CDI troubleshooting. So I plonk the stock CDI & kick start & God!!! Rx roars back to life. Its clearly evident, I BLEW THE DIGITAL CDI How many times can I curse myself for that stupid horn!!!

I hope to order a digital CDI soon, or rather when I get hold of some money. Meanwhile, my experiments with carbs are another write up. I'll pen them down here some day.

The digital CDI has conked off probably !!! Damn me!!!

I don't know how to call this stupidity of mine!!! Ok, lets replace the fuse & try was my next thought. Fortunately, the fuse box has a spare fuse. I remove all the vibromini connection, put everything back to stock stage & plug back the additional fuse & throw the blown fuse away, give one kick...two kick...three kick & vroom, the bike starts . Good I'm happy, I rev a little & then put off the engine. So the CDI hasn't conked off because the fuse took care of the shorting. But, little did I know what was awaiting for me the next day...

I think the metallic little box thingy inside your box of horns is the relay! At least that's what the guy told me it was when I bought a pair of horns for my RX. It never worked out for me anyways, diploma college + good horns = stolen horns

Relay - Wikipedia, the free encyclopedia

What is this relay unit first of all? On what situation do we use? I see one being used in my car (separate ones) for both horn as well as upgraded lights. Are you saying its not required? Any education is appreciated. Tks.

are you using cut out for the balance current supply,if not things gonna happen because these kind of horns using more current to leveled up we need to use cutout for proper current flow

How Mechanical is different from Electrical?

This is one incident today that sent me shivers & could've cost a huge hole in my wallet for experimenting.

A few days back I bought a ROOTS 2.5A twin vibromini horns. I'm not a big freak of fancy loud horns, but, the stock one wasn't serving the purpose; if you ask me back would ppl still respond to the twin vibromini, I know the answer for myself, its still sound falling on deaf ears


Though I'm very very weak when it comes to Electricals, I was proud of myself to have bought the RELAY along with the ROOTS horns & this was several weeks ago.

Finally I picked up some courage today to get them fixed. I went through the circuit diagram provided on the cover several times & had thoroughly understood as how to provide appropriate wiring. I also was very arrogant that my Rx had perfect electrical. Frankly speaking, nothing to be proud of, but for sure they ARE good.


Bought a meter of wire, socket clips to pin them & then started working; about an hour+ later, I'd the entire setup done & I pressed the horn button & damn!!! it didn't even sound though I could hear a light "click click" sound when I pressed the horn switch. Now I understood that the circuit MAY be fine & it powers up, but something is wrong. May be two 2.5A requires a 5A battery

Got down to troubleshoot now!!! With the confidence level boosted up, I unplugged one horn & then found the other one was working fine. So now, I wanted to test the second one & I was providing the connection. Not sure what went wrong or even what happened, this one was not honking. Ok, so the issue must be with the horn probably, that is what I said to myself. But then, let me double check. I notice something strange with pilot lamps & then it strikes me that the neutral lamp isn't glowing, which means...blown away fuse, which means...

calling you

Can someone help me pls? I need a OE RX135 4S Mikuni carbs. If someone can source me, there's nothing like it. TIA.

i recently changed my 5 speed carb and feted vm22 carb made in japan old one ,the bike pickup was good now im think to buy vm 24 carb and check it how it works .... !

RX135 is 22mm. So a Pacco is out of question. Why dont you try a 24mm or a RXK 26mm one? Finding jets shouldnt be very difficult.

Lol!!! Last Friday was a holiday; I spent over an year's time understanding how to open up & fix most common things.

Guys one question - Is Pacco (not Spaco) a good carb for Rx? I know Mikuni is best, but still contemplating. Pls provide your opinion.

Also what's the venturi size for Rx135 4S? Is it the same as Rx100 or different one? Reason for this question is, the Pacco carb is available for Rx100 over the shelf, so, if I could get hold of the 165 MJ & 17.5 PJ, I thought of plonking the jets into the 100's carbs, PROVIDED the venturi size is the same.