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Riding with no end cans.

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c_dug
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PostPosted: 17:33 - 22 Apr 2009    Post subject: Riding with no end cans. Reply with quote

What are the reprecussions, legaly and mechanicaly?

c_dug
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Tristan.
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PostPosted: 17:40 - 22 Apr 2009    Post subject: Reply with quote

Car mufflers occasionally rot and fall off, due to where they are obviously. So you could look at it from that angle legally, make it look like it could of fallen off and make sure your journey takes you in a direction you would be making after it fell off in the middle of nowhere, so home or to a garage.

Though on a GPZ I wouldn't, I've ridden both my FZR and my CB with no can. The FZR was in a residential area, early evening for about 3 miles at medium revs with no helmet, and it didnt seem that bad noisewise. The CB on the other hand was in the middle of nowhere, a deserted airfield with a few other bikers, also with no helmet for a few hundred yards. That was loud really loud, as some of the SW guys can attest.

so IL4 600 was quiet enough I could ride round houses without feeling particularly like a tit, 500 twin, was like the world was ending, even in the middle of nowhere.
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G
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PostPosted: 17:45 - 22 Apr 2009    Post subject: Reply with quote

Tristan the wrote:

so IL4 600 was quiet enough I could ride round houses without feeling particularly like a tit, 500 twin, was like the world was ending, even in the middle of nowhere.

Try a firestorm! At the drag strip it was ridiculously loud, easily matching the various turbo bikes etc. When it was ridden half a mile home (not me, by the way) at quarter past midnight through london from the van, it was even more noticable.

Likely to make your bike run a bit lean. Also likely to seriously kill engine braking.

One of the front heads would occasionally come loose on my DR600. Not only was it silly-loud, but the constant backfire from it concerned me in petrol stations!
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c_dug
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PostPosted: 17:56 - 22 Apr 2009    Post subject: Reply with quote

Already been out on a ride like it, just concerned about the long term concequences(sp?) really, the cans are back on at the monent but the noise level and resulting grin factor is a serious temptation to leave them off long term.

I had my mate following me and he said he saw flames a few times but nothing major, if i tried to backfire it it just made a pittyfull pop and no flames or anything dramatic Sad

c_dug
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Blue_SV650S
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PostPosted: 18:23 - 22 Apr 2009    Post subject: Reply with quote

c_dug wrote:
Already been out on a ride like it, just concerned about the long term concequences(sp?) really, the cans are back on at the monent but the noise level and resulting grin factor is a serious temptation to leave them off long term.

I had my mate following me and he said he saw flames a few times but nothing major, if i tried to backfire it it just made a pittyfull pop and no flames or anything dramatic Sad

c_dug


I've run my SV with no can ... its sounds immense!! Laughing

Technically without a can, the bike won't have enough 'back pressure' and is likely to run lean.

I am sure you know the consequences if running lean?

A 2-stroke is highly dependent on back pressure to keep the charge in the engine, a 4-stroke has valves to do the majority of that, so it is not AS critical!!!

In short, it'll mess with your fueling .. worst case, you will start burning out valves and pistons!! Shocked
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McGee
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PostPosted: 18:39 - 22 Apr 2009    Post subject: Reply with quote

Used to run my six with no can Cool
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Finglonga
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PostPosted: 21:53 - 22 Apr 2009    Post subject: Reply with quote

Haven't run an end can for over 6 years now, even passed the MOTs like it as the CAT is e-marked and soaks up most of the noise.

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c_dug
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PostPosted: 22:14 - 22 Apr 2009    Post subject: Reply with quote

Im seriously wanting to just rid of the cans, the thng is my pipe has no sort of CAT or anything its just strait pipes through to the end cans, any of you guys do anything airbox wise to richen up the mixture to compensate? If not has there been any of the side effects mentioned above i.e. holed pistons and fooked valves, not really in the position to go fucking up my bike, but if you guys have had no problems then ill most likely through caution out the window and do it anyway.

Not worried about the legal side so long as it doesnt involve points.

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Pete.
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PostPosted: 15:45 - 23 Apr 2009    Post subject: Reply with quote

I think fuel-injected bikes suffer much less than carbed ones. Main thing is to wear earplugs coz tinitus is not nice at all.
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Finglonga
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PostPosted: 15:50 - 23 Apr 2009    Post subject: Reply with quote

Geri wrote:
I think fuel-injected bikes suffer much less than carbed ones. Main thing is to wear earplugs coz tinitus is not nice at all.


Did a plug chop on mine to make sure and it was fine the FI sorted the mixture oit without any problems.

As for earplugs . . . They are a no brainer to use them even with the standard can on as its the wind noise that causes the most damage and at speed the exhaust will be drowned out.
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Kal
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PostPosted: 15:34 - 24 Apr 2009    Post subject: Reply with quote

I lost the left hand end pipe from the trike exhaust on one trip out.


Failed to notice for another 40 miles. Twisted Evil
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