NEED ADVICE ASAP ...please help ..

[bachuus1002]

Hey guys ..my mecanic is almost done with my enigne rebild

big bore kit .full race porting complete øhlins galfer ect ect...

well anyway..he asks me if i want something on the cams removed ..
dont know what its called in english
i think it is the scissorgears but im not sure . .he tels that it gives a little on the preformance but also makes the engine more mecanical noice. .

so i told him i need to ask you guys first .about this ...please let me know ..

thanks. . bachuus

[GhostMAFIA]

Re: NEED ADVICE ASAP ...please help ..

Paging Sam... or any other competent enging builder. Sorry mate... I'm useless on this one.

[swademaster]

Re: NEED ADVICE ASAP ...please help ..

Yes, they are the scissor gears. No harm in removing them, from what I have heard. Like your mechanic said, just a little more noise.

[bachuus1002]

Re: NEED ADVICE ASAP ...please help ..

Ok i see ..well just wanted to know if it is a bad or god idea .
how about the decomp system

[evl tvn]

Re: NEED ADVICE ASAP ...please help ..

It's just over a 1lbs of rotating assembly that U can live without.
I removed my scissor gears about 6 years ago and everything is well, some people will tell U that after removal it's harder to start but that is nothing I notice.
What they do is keep the valves open to help start engine easier but mine starts better with them removed.
The engines revs a bit faster since there is less of rotating mass, I say take them out, TL is loud as fuck either way



BTW:
Can U say more about what U are having done in the engine itself?

[bachuus1002]

Re: NEED ADVICE ASAP ...please help ..

haha nice answer well ok i will tell him that...

looking forvard to try out my new engine

[bachuus1002]

Re: NEED ADVICE ASAP ...please help ..

and thanks again ...by the way were can i find a pic .of this scissorgear thing

[evl tvn]

Re: NEED ADVICE ASAP ...please help ..

ronayers.com, maybe..under fiche
It's just a set of gears mounted on Your cams with some springs and clips

[TLSMan]

Re: NEED ADVICE ASAP ...please help ..

Scissor gears are worth while to remove in my opinion. I noticed my engine spun up faster after they were removed, but there was a little more engine noise.

Somebody mentioned decompression lever removal. I took mine out and wish I had not. I think it's worth while mod if your bike is a race bike or a sunny sunday type of ride. But my TL is a daily rider (untill the snow comes). Now that it's getting down into the low low 30s F at night my bike is a pain to start in the morning because the cold is sucking up all my battery power.

[evl tvn]

Re: NEED ADVICE ASAP ...please help ..

Battery tender should be on Your Christmas wish list for this year if U have power where the bike is parked.
I have mine plugged in from October to and of April in NJ.

[TLSMan]

Re: NEED ADVICE ASAP ...please help ..

Actually I dont have a "battery tender" but I have a low rate battery charger that has the same functions as a battery tender. I just pulled it out of the cabinet this morning and hooked it up I couldn't have it plugged in the last couple of weeks because my garage had a truck in it that I was fixing, which was blocking the door. So I parked the bike outside since I couldn't get it in and out.

[TLDV8]

Re: NEED ADVICE ASAP ...please help ..

and thanks again ...by the way were can i find a pic .of this scissorgear thing

This is a decompressor (Sent to Ian / TL Monkey)



This is the scissor gear.



Removing rotating weight from the crankshaft or flywheel will give a noticeable result in spooling not a few trinkets off the camshafts.
Of course going to far with the above will result in lost stored energy,inability to hold a high gear on gradients and loss of low speed smooth running in the same upper gears.

[Patch11]

Aftermarket cams do not have the scissor gears - some choose to discard the factory items for a slightly lighter rotational mass, mostly personal choice on a road going bike.
If you have a decent aftermarket exhaust, you have little chance in hearing the "extra noise" from the lighter cams.

Of course going to far with the above will result in lost stored energy,inability to hold a high gear on gradients and loss of low speed smooth running in the same upper gears.

This is good advice, keep it in mind, especially when lightening the flywheel and/or crankshaft on a road going bike.

[TLDV8]

Re: NEED ADVICE ASAP ...please help ..

Aftermarket cams do not have the scissor gears - some choose to discard the factory items for a slightly lighter rotational mass, mostly personal choice on a road going bike.
If you have a decent aftermarket exhaust, you have little chance in hearing the "extra noise" from the lighter cams.

Its more up Stu's alley but aftermarket cam gears have a different mesh or maybe gear profile to a TL item with a scissor gear as far as I know.
A straight cut gear of the correct design will make a noise similar to a supercharger drive whine,not the noise a scissorless TL gear makes,a GMC dump truck..

[The Ring-In]

Re: NEED ADVICE ASAP ...please help ..

What they do is keep the valves open to help start engine easier but mine starts better with them removed.

decompressors do this not scissor gears

scissor gears keep the cam gear teeth tight on each other.

it saves noise but it also saves wear on the gears. they can wear in patches as the load changes with the lift.

on the road you would not notice any difference in performance.

on the dyno you might see some difference but its not going to translate into anything useful. If you were chasing thousandths of a second over 400m then its worthwile.

have a dump before you ride its more likely to improve the acceleration of your bike.