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Post subject: plugs oil manual 350 4l0
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GAZZATT2  Daily Burner Joined: 19 Oct 2006 Total posts: 100 |
what gearbox oil should I use
trusty haynes manual says 10 -30 other people say 10- 40 ?
is there any where I can download the yamaha workshop manual
for 350 lc 4lo
what spark plugs should I use
the engine has unknown level of tune inc spacers under barrels
the plugs I have taken out are
r/h = ngk bkr 6ek
l/h = ngk bkr 5ek
Gazza
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Posted: Tue Apr 29, 2008 3:18 pm
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Thrasherg  Powerband Master Joined: 18 May 2007 Total posts: 721 Location: Austin, Texas |
I run 75W gear box oil (specially developed for 2 stroke engines, from Bel-Ray, called Gear Saver). I really can't see it making any difference if you run a 10-30 or 10-40 (the last number is the viscosity of the oil when hot) a 40 might be slightly better for the gearbox, but the difference between a 30 & 40 is going to be very small. I would still suggest using a genuine gearbox oil rather then an general purpose oil designed for a 4 stroke engine.
The dedicated gearbox oil has very good shear resistance (which you need as gearboxes really break down oil chains) but a 4 stroke engine has to deal with plain bearings, roller bearings and gear boxes and therefore cannot have as much shear strength as that would cause issues at the plain bearings. Most 2 strokes don't have plain bearings so go for a real 2 stroke gearbox oil and maximise the gearbox life..
I would recomend running NGK BR9ES spark plugs, I am not familiar with the plugs that you listed, but I am sure someone will chime in. The number is usually the heat rating, so a 6 rating would be a very hot plug and would damage the piston, but I suspect your plugs number system must be different to what I am use to, as it would be very hard to find a 6 rated plug!! Are you sure they are NGK plugs?
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Posted: Tue Apr 29, 2008 6:31 pm
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xen-uno Joined: 27 Jul 2005 Total posts: 845 |
per Yamaha's RZ350L-N-NC manual ...
Recommended oil:
Yamalube 4-cycle oil or
SAE 10w30 type SE motor oil or
"GL" gear oil
Too high a shear strength is not a factor in plain bearings for off the shelf oils ... viscosity is but only because too thick would be hard to pump leading to bearing starvation, and will soak up power. The ultimate is price/performance would be ATF as automatic transmissions have clutch packs and gear loadings that would make a cycle transmission cry like a girl. As it stands, I use 10w40 auto motor oil (non-energy conserving).
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Posted: Tue Apr 29, 2008 6:46 pm
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GAZZATT2  Daily Burner Joined: 19 Oct 2006 Total posts: 100 |
what is the difference between
br9es and b9es ?
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Posted: Tue May 27, 2008 9:19 am
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xen-uno Joined: 27 Jul 2005 Total posts: 845 |
Resistor
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Posted: Tue May 27, 2008 10:27 am
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GAZZATT2  Daily Burner Joined: 19 Oct 2006 Total posts: 100 |
does it matter ?
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Posted: Tue May 27, 2008 10:30 am
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paddyontour Joined: 29 Oct 2007 Total posts: 282 |
Plugs without a resistor can cause problems for the PV's - I think they cause some sort of electrical feedback that upsets the PV servo...
But don't think they make any difference for LC's 
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Posted: Tue May 27, 2008 2:31 pm
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mervin  Mmm, Fully Synthetic! Joined: 14 Sep 2003 Total posts: 1054 Location: far away from here |
Gazz
me has 4l0 manual i thinks parts list anyhow, PM me for parts list wil put manual on the aircooled site manual links if i have it later
merv
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Posted: Tue May 27, 2008 6:00 pm
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Vindaloobeast  Rear-wheel Steering! Joined: 25 Aug 2005 Total posts: 2623 Location: Gloucester |
| paddyontour wrote: |
Plugs without a resistor can cause problems for the PV's - I think they cause some sort of electrical feedback that upsets the PV servo...
But don't think they make any difference for LC's  |
Makes a difference if you rev it up when the neighbour is watching telly..!
Interferes..!
Beast.
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Posted: Tue May 27, 2008 8:28 pm
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gary-rd-robbo ![RD/RZ Blood Donor [RD/RZ Blood Donor]](../img/pipsvip.jpg) RD/RZ Blood Donor One-handed Stoppie! Joined: 07 Oct 2007 Total posts: 2311 |
| Vindaloobeast wrote: |
| paddyontour wrote: |
Plugs without a resistor can cause problems for the PV's - I think they cause some sort of electrical feedback that upsets the PV servo...
But don't think they make any difference for LC's  |
Makes a difference if you rev it up when the neighbour is watching telly..!
Interferes..!
Beast. |
BEAST ,you been getting your neighbours back too then??? ......i crack my bike open also to interfere with neighbours tvs and even worse when they got freeview built in!!!! well....keep telling then not to let their cat poop in my garden.... 
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Posted: Tue May 27, 2008 11:06 pm
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p51bombay Joined: 23 Jan 2004 Total posts: 9869 |
| gary-rd-robbo wrote: |
| Vindaloobeast wrote: |
| paddyontour wrote: |
Plugs without a resistor can cause problems for the PV's - I think they cause some sort of electrical feedback that upsets the PV servo...
But don't think they make any difference for LC's  |
Makes a difference if you rev it up when the neighbour is watching telly..!
Interferes..!
Beast. |
BEAST ,you been getting your neighbours back too then??? ......i crack my bike open also to interfere with neighbours tvs and even worse when they got freeview built in!!!! well....keep telling then not to let their cat poop in my garden....  |
So hows it go then..............you wait till their favourite show's on then go start your bikes? B@st*d 
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Posted: Tue May 27, 2008 11:41 pm
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Vindaloobeast  Rear-wheel Steering! Joined: 25 Aug 2005 Total posts: 2623 Location: Gloucester |
I especially like to 'test' the bike when the football is on..pisses 'em all off..good...football is shite and Im sick of listening to their radios full blast in the garden too (with football on). I usually find the flymo followed by a few albums of the Sex Pistols at full bore sorts it out.
Beast.
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Posted: Wed May 28, 2008 7:10 am
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