Could low octane plug help in cold starts?

gefr · 01-08-2013, 11:39 AM

I am having cold morning start problems draining the weak battery. At the moment I am grounded.
Would I help the engine to start unplugging the low octane plug?
I would think that lowers advance ignition. Isn't that what we want to help the motor ignite?
What do you think?

Stumpalump · 01-08-2013, 02:52 PM

Sounds logical but it sound like you just need a battery. Thump the old one on the concrete to knock the sulfate loose if you need to stretch its life.

gefr · 01-08-2013, 10:17 PM

I have a 990 carbed and am messing around with its jetting, so the battery is new but cheap. I got it to die twice in a week so I don't think it has sulfate. Or is it getting sulfate everytime it dies?

Sumi · 01-09-2013, 04:28 AM

Doesn't the low octane map only differ from the standard map at higher RPM's ?

Stumpalump · 01-09-2013, 06:07 PM

Quote:

Originally Posted by gefr

I have a 990 carbed and am messing around with its jetting, so the battery is new but cheap. I got it to die twice in a week so I don't think it has sulfate. Or is it getting sulfate everytime it dies?

Ever time it dies you are hurting it and leaving it sit while discharged is really hard on a battery.

charlie264 · 01-11-2013, 10:59 AM

I made a jump pack out of two 12v 7ah yuasa jelly cells I got from work....they are about a £10er each. If my bike battery is lazy I just connect for five minutes and she whizzes into life. The low octane advance timing increases with revs, so not sure how advanced it will be at tick over speeds.

01-08-2013, 11:39 AM	#1
gefr ^OP Life is a trip Joined: Nov 2005 Location: East Med, Greece Oddometer: 3,200	Could low octane plug help in cold starts? I am having cold morning start problems draining the weak battery. At the moment I am grounded. Would I help the engine to start unplugging the low octane plug? I would think that lowers advance ignition. Isn't that what we want to help the motor ignite? What do you think? __________________ There is always a reason!!

01-08-2013, 02:52 PM	#2
Stumpalump Gnarly Adventurer Joined: Feb 2010 Oddometer: 122	Sounds logical but it sound like you just need a battery. Thump the old one on the concrete to knock the sulfate loose if you need to stretch its life. __________________ KTM 950A Rokon 2X2 Montesa 315R trials KTM 200 EXC. XR400

01-08-2013, 10:17 PM	#3
gefr ^OP Life is a trip Joined: Nov 2005 Location: East Med, Greece Oddometer: 3,200	Thnx. I have a 990 carbed and am messing around with its jetting, so the battery is new but cheap. I got it to die twice in a week so I don't think it has sulfate. Or is it getting sulfate everytime it dies? __________________ There is always a reason!!

01-09-2013, 04:28 AM	#4
Sumi Beastly Adventurer Joined: Mar 2010 Location: Hungary Oddometer: 1,191	Doesn't the low octane map only differ from the standard map at higher RPM's ? __________________ 2005.5 950 Adventure (with 265mm travel suspension)

01-11-2013, 10:59 AM	#6
charlie264 Beastly Adventurer Joined: Oct 2007 Location: Blighty Oddometer: 5,195	I made a jump pack out of two 12v 7ah yuasa jelly cells I got from work....they are about a £10er each. If my bike battery is lazy I just connect for five minutes and she whizzes into life. The low octane advance timing increases with revs, so not sure how advanced it will be at tick over speeds. __________________ Beauty is truth and truth is beauty. Charlie's Side Stand Relocator.

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