What type of fork oil to use


Information and questions on GL1500 Goldwings (1988-2000)
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wingthing88
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What type of fork oil to use

Postby wingthing88 » Wed Apr 09, 2014 5:48 pm



I have and '88 wing and was wondering what type of fork oil to use when I change my seals. I've talked to my local Honda dealer and they say to use ATF my clymer manual says to use ATF I've read several post that recommend not using ATF but none recommending what grade of fork oil to use could I get some opinions on what viscocity to use? My riding habits are around town back and forth to work on the highway and occasionaly taking it out on the twisties and thrashing the corners a little. Recommend an all around grade and brand.



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Dusty Boots
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Re: What type of fork oil to use

Postby Dusty Boots » Wed Apr 09, 2014 8:00 pm

I've used both ATF and 'proper' fork oil and found that the 15 weight fork oil performed better than the ATF.
I have a set of Progressive springs installed up front, as well.

When you pull your springs, measure them to make sure they are still within their service limits (>382.8mm/15.07") and not sagged as mine were, with only 15,000 mi on them at the time.



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wingthing88
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Re: What type of fork oil to use

Postby wingthing88 » Wed Apr 09, 2014 8:06 pm

Thank you Dusty Boots. I'm pretty sure my springs are ok. Last year I measured them last year and they were good thanks for the tip.

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RoadRogue
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Re: What type of fork oil to use

Postby RoadRogue » Wed Apr 09, 2014 9:26 pm

Im going to try this again, not sure what happened to my first attempt.

I too like to play in the twisties, I too have Progressive Suspension springs up front.
ATF is either 5wt or 7wt oil. I like a stiffer ride for better feeling of the road. I use Bell Ray 20wt. Fork oil, it gives me better rebound dampening than the lighter oils do, less wallowing in the corners. If you want to ride a marshmallow then stick with the light oil. 8-)
Ride safe, Todd
Over night campers welcome

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WingAdmin
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Re: What type of fork oil to use

Postby WingAdmin » Wed Apr 09, 2014 11:07 pm

I also have the 15 weight fork oil in my forks, and quite like it.

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wingthing88
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Re: What type of fork oil to use

Postby wingthing88 » Thu Apr 10, 2014 5:43 am

15 weight it is. I think while I'm at it I may go with a set of Progressive springs. I saw them at Dennis Kirk for $114.00. Is there any place cheaper? And is it imperative to use the spring compressor or can the springs be r&r by hand. Last time I borrowed the Honda tool from a friend who has since passed away I have no idea what his family did with his tools.

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wingthing88
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Re: What type of fork oil to use

Postby wingthing88 » Thu Apr 10, 2014 5:46 am

To Road Rogue. I like my marshmallows like my tires......ROASTED

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golden highway
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Re: What type of fork oil to use

Postby golden highway » Thu Apr 10, 2014 5:49 am

I put ATF in rode the bike for few weeks drained the ATF and put in fork oil just see which I liked best. I started with the ATF because it was inexpensive and I thought for sure I would end up sticking with the fork oil, but I ended up switching back to the ATF I found the bike handled better and liked the response better.

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Dusty Boots
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Re: What type of fork oil to use

Postby Dusty Boots » Thu Apr 10, 2014 8:11 am

Gary sells the Progressives for $99

Be careful when you remove the fork caps as they are under a lot of pressure and will go flying off! :o

You may very well need to enlist some help when installing the fork caps, so they can thread the caps on with a ratchet, while you use this tool made out of 1 1/2" PVC to help compress the springs by standing on the pegs and using your body weight to help compress the springs.
Be careful you do not cross thread them!






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Re: What type of fork oil to use

Postby WingAdmin » Thu Apr 10, 2014 9:29 am

wingthing88 wrote:15 weight it is. I think while I'm at it I may go with a set of Progressive springs. I saw them at Dennis Kirk for $114.00. Is there any place cheaper? And is it imperative to use the spring compressor or can the springs be r&r by hand. Last time I borrowed the Honda tool from a friend who has since passed away I have no idea what his family did with his tools.


Have a look at How to rebuild your front forks. While you're in the forks, you may want to do the seals, bushings and sliders while you're at it. At the least, that shows how to remove and replace the springs, as well as fill the fork oil.

I bought the Honda spring compressor tool to use - it fits on multiple Honda motorcycles (and we have two). You will not be able to remove and replace the springs without some sort of compressor tool - and it can be dangerous to try without. Removing the fork caps without a tool in place will cause the last few threads to be destroyed when the caps are almost out and the springs cause them to go shooting across the room.

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Re: What type of fork oil to use

Postby minimac » Fri Apr 11, 2014 5:28 am

Like others here, I prefer using the 15 wt. fork oil. I'm a bit obsessive about my forks, though. I change the fluid annually. I figure it's cheap enough, why not.

Trace Wallace
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Re: What type of fork oil to use

Postby Trace Wallace » Sun Apr 20, 2014 8:49 pm

I have the forks apart right now on my 98 Winger. My springs are much longer than the 15" specifications in the books and there was not a spacer with them. I assume these are progressive springs that were put in by a previous owner. Does anyone know what the minimum length should measure out to be?

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Re: What type of fork oil to use

Postby WingAdmin » Tue Apr 22, 2014 1:03 pm

Trace Wallace wrote:I have the forks apart right now on my 98 Winger. My springs are much longer than the 15" specifications in the books and there was not a spacer with them. I assume these are progressive springs that were put in by a previous owner. Does anyone know what the minimum length should measure out to be?


If they are Progressive (and it sounds like they are) then the OEM minimum spring lengths aren't going to apply.

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Dusty Boots
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Re: What type of fork oil to use

Postby Dusty Boots » Tue Apr 22, 2014 1:32 pm

If they are Progressive's, they are spring model # 11-1152 and should have a free length 20.50", or 521mm

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Re: What type of fork oil to use

Postby Trace Wallace » Fri Apr 25, 2014 5:20 pm

Thank you Dusty Boots! Just one more question. Since I have Progressive Springs, what amount of fork oil goes into forks? I installed an oil lock piece in the other fork before I found out only the left fork had it in there. I'm not going through the trouble to take it back out.




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