vjeltz

Just my two cents,

I have a 350 UCE electra and rode with the Indore silencer for about 5000km on it after changing it at 3500km. While it seemed nice at first to get out a bullet-like sound, it's a racy horrible sound in reality. I lost torque at high speeds and the vibrations were too horrible to handle. My horn fell off, followed by rubber gaskets on the cylinder head. And the mirrors are constantly blurred.

I reverted back to the stock silencer after getting it shortened from a good welder who also removed a bit of glass wool in it. I like it punchy and soft. It's a nicer, less louder, smoother beat now.

caravans

A well-meant request beforehand; kindly understand the philosophy of working of the carb before going into tuning change. It takes a bit of understanding, certainly not rocket-science but you should go through Mikuni manuals that is available over Internet or Pete Snidal's Bullet Manual, or manual in Hitchkock's motorcycle on the net. Other sources are there too. The reason for mentioning this is, just by reading about few tuning screws here & what they perform, it is normally not enough to understand what your actions are actually producing inside. The good part is the spark plug always shows true colours. Learn to read the spark plug of a bullet.

Now to your specific question, lower than 1/4th throttle position is when the pilot jet circuit works inside the carb. And this includes the idling zero throttle position as well. The pilot jet screw (not the idling screw, which controls the engine rpm) controls the idling mixture. In Micarb VM24 carb, (I'm not sure what carb model you have on your bike) it's an air-bleed type, meaning screwing in makes mixture richer, screwing out allows more air to pass & hence leaner. An usual shock setting of pilot jet screw is 1.5 turns from fully closed position, but this isn't absolute. Engine to engine tuning varies.

In your case, a slight richer pilot jet position is just-less (1/8th to 1/4th turn less) than 1.5 turns but your engine rpm must match your riding style. Also, on making rich, after normal running, check your plug to see if it's not too black or signs of too much carbon deposition on the insulator.

For normal running throttle positions, needle jet plays the part. But it's usually accepting of a good range of normal setting changes, unless you require to produce more power, which is off-topic, or fit a free-flow exhaust, which is not in your case. The main-jet works only from 3/4th to full throttle, which you will do only on highway touring, so it's anyway not a problem, if of correct size, which is 90.

Happy thumping,
Anirban.

not

thanks caravan for typing such a big reply, thanks a lot .. i did this.. i pushed the air screw a turn in and the idle screw half turn up. for me mileage matters too

one more thing , i am much of a tourer and not a local commuter. fixing this short bottle one will no way affect my longer rides right ? .. because over heating is a serious problem in long tours.

i am taking my vehicle tomorrow to RE show for the air escape in the exhaust... wondering what they ll do ....

SaiRam CBVS

Dude go for the short bottle neck silencers made for UCE engines, improves the thump and no effect on mileage , My bull delivers good torque and a mileage abou 45 kmpl in city conditions any issues revert me back!

Kevian

Hello Guys,

I have a RE STD 350cc (UCE) motorcycle. It has some 6000kms on it. I'd like to know if there any places in Hyderabad to check out different silencers for my motorcycle. The reason I'm asking this to first hear how the thumping on my motorcycle is and then choose which one sounds heavy and bassy. I don't like loud thumps...heavy is good for me. Any idea brothers? Sairam? Isee you are from Hyderabad...

Cheers!!
Kevian

jayanth_b_p

Have you tuned your carb or something? I have a year old TBTS & the maximum mileage i have got is around 42 that too on a highway...If you can get 45 in city then 48-50 is what you should get in highway....you sure that it 45?


Do check the above link i have got goldenstar on my bird.....

Sans classic Parts

__________________
There ain't no devil, ther'e just God when he's drunk.

SaiRam CBVS

No carb tuning done, I only drive my bike and use the petrol only from one trusted bunk in Miyapur! and we need to drive bull like a BULL, not live the pulsars or APaches! replace ur engine oil every 4000 thousand KMS and clean the airfilter at the same time and KEEP UR BULL CLEAN , then ur BULL also ROCKS! and u can find all the RE parts at Ramkoti circle the shop name is Royal automobiles and beside the shop u have an OLD bull mechanic very affordable another shop is at siddemberbazar and the shop name is Delhi auto parts! u can go for the Indore Silencer thumping will be high if u raise ur bike and the thump will be normal if u drive at norma speeds!!

Kevian

Hey Sairam,

I got your PM bro. I stay at Sainikpuri. I'll call you sometime and talk about it. I am thinking to get Sans Goldstar silencer. What do you say?

cheers!!
Kev

SaiRam CBVS

I think the thump differs on the Sans Goldstar silencer! try to check the thump before u go for it and the silencer may cause problems if you are a off riding freak!!!!

PKS

Hi Guys....I got myself a TBTS 6 months back...Its been an awesome ride so far...Smooth cruise...Clocked 4500Kms...Now am thinking of changing the silencer for more thump.
Need some advice. A lot of places I have heard about the short bottle silencer, goldstar, indore, std 350 silencer...whats the difference between all of these.

Which one do you recommend? Does RE Service center stock any of the silencers? Need help guys