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Cold Starting
  #1  
Old 01-02-2018, 05:45 PM
Trondyne Trondyne is offline
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Location: Pelham, NY
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My VMax: 1993, Yellow
My other bikes: CB900C
Default Cold Starting

Well the temps are super low here....and Max has been having trouble starting...due to the thickened oil stopping the starter clutch from engaging....

Question: Would it be safe to use a 50/50 mix of 10 weight oil with 5 weight oil?

Someone suggested that 10 weight is the lowest weight oil that it should be running...and that a synthetic oil would be better for the cold starting problem...

I figure there must be others out there running in these cold temps...what are you using to keep Max running in sub freezing temps?

Any suggestions are appreciated...
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Re: Cold Starting
  #2  
Old 01-02-2018, 06:23 PM
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93max 93max is offline
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Default Re: Cold Starting

It has a hard time cranking or it won't light off?
Is the battery on a tender?
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Re: Cold Starting
  #3  
Old 01-02-2018, 07:15 PM
AJBinVA AJBinVA is offline
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My VMax: '96 Black, '88 Red, '94
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Default Re: Cold Starting

Keeping the battery on a trickle charger helps. Keeps the battery warm (relative) for a little boost on cranking.
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Re: Cold Starting
  #4  
Old 01-02-2018, 07:36 PM
Trondyne Trondyne is offline
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Location: Pelham, NY
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My VMax: 1993, Yellow
My other bikes: CB900C
Default Re: Cold Starting

Well, the problem isn't electrical...

It's the starter clutch.... Same trouble I have had with at least two other bikes in the cold... The starter clutch is soaking in cold oil so when you try to start it the small rods or teeth don't have a chance to deploy and grab the outer housing of the starter clutch to turn over the engine....which results in a whine as the starter spins freely... hence my mentioning the oil weight... Anyone starting the bike after sitting in zero degree temps would likely experience the same trouble...
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Re: Cold Starting
  #5  
Old 01-03-2018, 03:32 AM
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Supercharger Supercharger is offline
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Join Date: Nov 2016
Location: Denmark
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My VMax: 2011 Black
My other bikes: Yamaha XT350
Default Re: Cold Starting

You can use a lower viscosity oil (xxW30) when the temp is very low.
Don't forget to swap back to (xxW40) at spring/summer.
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Re: Cold Starting
  #6  
Old 01-03-2018, 07:21 AM
AJBinVA AJBinVA is offline
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My VMax: '96 Black, '88 Red, '94
My other bikes: 1989 & 1983 Venture Royales
Default Re: Cold Starting

So this morning checked both bikes (9 degrees out). The one with 15-40 Rotella I intended to ride cranked fine but the seal in the clutch master blew out. The other max with 20-50 Kendall experienced the whirring and finally rolled over after a few attempts.
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Re: Cold Starting
  #7  
Old 01-03-2018, 07:30 PM
Trondyne Trondyne is offline
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Join Date: Sep 2017
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My VMax: 1993, Yellow
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Default Re: Cold Starting

Quote:
Originally Posted by AJBinVA View Post
So this morning checked both bikes (9 degrees out). The one with 15-40 Rotella I intended to ride cranked fine but the seal in the clutch master blew out. The other max with 20-50 Kendall experienced the whirring and finally rolled over after a few attempts.
Interesting...

I had the bike picked up and they said the starter clutch was "shot"... I tried starting it in the shop and sure enough, even with the higher temps in the shop it would start to turn over and then let go and spin.... Funny since it worked with no problems for the last two months since I have owned the bike...but I know they do fail...

So, I checked with the local Yamaha place and after waiting and listening to the owner wrestling with the computer for 20 minutes, he said they had Zero starter clutches in stock...

What a shocker...

So, the shop ordered one and will put it in asap... Do you guys think I need to tell them to use red thread lock when installing? I want no more trouble with this naturally...
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Re: Cold Starting
  #8  
Old 01-03-2018, 11:03 PM
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D-Max2012 D-Max2012 is offline
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My VMax: 91 tan
Default Re: Cold Starting

Quote:
Do you guys think I need to tell them to use red thread lock when installing? I want no more trouble with this naturally...
Have them clean the bolts threads and thread holes with acetone 1st,, then red locktite, then peen the bolt ends into the flywheel.

I did mine about 3-4 months ago now.. I actually let the locktite setup for 24 hours before peening the bolts.. Just to make sure the bolt didn't shift at all during the peening process. But that's just me being anal,, since I don't plan on going back in there any time soon.

 

Re: Cold Starting
  #9  
Old 01-03-2018, 11:32 PM
Trondyne Trondyne is offline
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Join Date: Sep 2017
Location: Pelham, NY
Posts: 66
My VMax: 1993, Yellow
My other bikes: CB900C
Default Re: Cold Starting

Quote:
Originally Posted by D-Max2012 View Post
Have them clean the bolts threads and thread holes with acetone 1st,, then red locktite, then peen the bolt ends into the flywheel.

I did mine about 3-4 months ago now.. I actually let the locktite setup for 24 hours before peening the bolts.. Just to make sure the bolt didn't shift at all during the peening process. But that's just me being anal,, since I don't plan on going back in there any time soon.

Well, I can try.... Although I have some doubts that they or he would be very receptive to all those instructions....assuming that he/they even fully understood them...

The head mech is very sure of himself... Even when he told me his stock CB750K weighed in at 700 pounds... which, of course, is way off...

It took me 5 years to find these guys who do decent work and don't overcharge... But I guess I need to keep looking....
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Re: Cold Starting
  #10  
Old 01-09-2018, 11:57 AM
Zenuwlijer Zenuwlijer is offline
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Join Date: Aug 2017
Location: Netherlands
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My VMax: 1998 Black
Default Re: Cold Starting

Quote:
Originally Posted by Trondyne View Post
I figure there must be others out there running in these cold temps...what are you using to keep Max running in sub freezing temps?

Any suggestions are appreciated...
I'm using Castrol 10W-40 oil.

I've also got a maintenance free battery on a trickle charger and have the COPS modification. No problems whatsoever. Started it with -2 degrees Celius this morning.
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