86 trx350A clutch replacement - Honda ATV Forum
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post #1 of 67 (permalink) Old 08-26-2018, 05:50 PM Thread Starter
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86 trx350A clutch replacement

Hi guys and gals! Thanks for the join. I have an 1986 trx350a looking for some advice and know how. So last weekend i was riding and got in to deep in a water crossing and swamped my bike. I've changed all fluids and flushed the motor a few times before putting rotella and a new filter in. Now comes my issue. Went on a nice 50 mile ride yesterday and noticed when i would shift from 2-3 or 3-4 if i was getting on it hard it would slip unless i let off it then i could get back in to it. Does anyone think that i should go ahead and replace the clutches and go from there? Any specific clutches people are running? Any insight on special tools or things i should know before attempting this job? I also have found that every where shows the 300 and 350 share same clutches? Is that true? Should i go with a heavy duty clutch kit since im running 27s? Thanks!!
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post #2 of 67 (permalink) Old 08-26-2018, 06:25 PM
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Try adjusting the clutch first. If it still slips you might want to put an EBC DRC clutch kit (complete with springs) in it.
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post #3 of 67 (permalink) Old 08-27-2018, 12:37 AM
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I ran EBC HD clutches in my 300 with new OEM springs, the spring rating of the HD clutch kit was ridiculous IMO so I opted for the new OEM springs which have caused no issues what so ever. I would certainly try adjusting before replacing though.

When you flushed the engine did you spin the wheels and go through the gears at all? It may be worth while dropping your oil and looking for contamination now you’ve ridden it.

I used to change all oils after every two outings (300 was a mud bike), even though everything was sealed the best it possibly could be contamination was still noticeable in ALL oils. In your case you may have fluid (whatever you used to flush or crud from being swamped) trapped between clutch plates.
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98 300 Fourtrax 4x4

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post #4 of 67 (permalink) Old 08-27-2018, 05:48 AM Thread Starter
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Ok. Thanks for the quick replies. I did run it after the flush. I filled it up started it and cycled thru the gears. I drove it once enough to load on my truck then off. I did try adjusting but it didnt make a difference. Do you know if the 300 clutch is the same? From what I can see they call for same number. As far as springs were they to stiff??
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post #5 of 67 (permalink) Old 08-27-2018, 07:36 AM
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I don’t know if 300 clutches are the same, it’s been a long time since I looked in a 350 and I haven’t checked part numbers out, email EBC and they should provide you with the correct part number, their a helpful bunch. I never tried the springs in the bike, they were noticeably stronger when I compressed them by hand and I didn’t want stronger springs. I’m not saying it’s a bad thing I just wanted OEM.

98 300 Fourtrax 4x4

Custom built mud bike - Now sold.

2004 Foreman 450S

Fully overhauled (nut & bolt rebuild), 2 lift kit, 28 mega mayhems, ITP delta rims, ES floorboards, 22 LED lightbar, Pyle Bluetooth sound system.
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post #6 of 67 (permalink) Old 08-27-2018, 08:47 AM Thread Starter
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Quote:
Originally Posted by SamUK View Post
I don’t know if 300 clutches are the same, it’s been a long time since I looked in a 350 and I haven’t checked part numbers out, email EBC and they should provide you with the correct part number, their a helpful bunch. I never tried the springs in the bike, they were noticeably stronger when I compressed them by hand and I didn’t want stronger springs. I’m not saying it’s a bad thing I just wanted OEM.
Thanks for the help!! I'll shoot them an email and see what they say. Im ok with heavier springs since im a sportier type rider and play mud too.
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post #7 of 67 (permalink) Old 08-27-2018, 10:04 AM Thread Starter
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So i did some research along with emailing ebc. The factory part numbers for the clutch plates both steel and friction are the same between my 86 and a 90 trx300 fourtrax. So with that being said i am to believe that a heavy duty 300 kit would also be a heavy duty kit for my 350. Any one recommend a gear reduction kit while im in there?
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post #8 of 67 (permalink) Old 08-27-2018, 10:45 AM
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Quote:
Originally Posted by 86_4trax4x4 View Post
So i did some research along with emailing ebc. The factory part numbers for the clutch plates both steel and friction are the same between my 86 and a 90 trx300 fourtrax. So with that being said i am to believe that a heavy duty 300 kit would also be a heavy duty kit for my 350. Any one recommend a gear reduction kit while im in there?
https://www.hondaforeman.com/157-vin...ml#post2715697

@mac102004

Where has mac been lately? He's been quiet.
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post #9 of 67 (permalink) Old 08-27-2018, 11:01 AM
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For a GR get in touch with Jeremy Lee at Reduction Boss, you’ll find him on FB, or Ron Shaw would be able to help you out, again you’ll find him on FB or from anquick google search.


Yes, where is mac102004 ?
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98 300 Fourtrax 4x4

Custom built mud bike - Now sold.

2004 Foreman 450S

Fully overhauled (nut & bolt rebuild), 2 lift kit, 28 mega mayhems, ITP delta rims, ES floorboards, 22 LED lightbar, Pyle Bluetooth sound system.
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post #10 of 67 (permalink) Old 08-27-2018, 05:06 PM Thread Starter
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Thanks for the replies. I found one on ebay that's supposed to be a drop in kit. 200 for kit minus 75 dollar core. So 125 for both gears.
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