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GlamisDunes.com > Quads - OHV's - Two-wheelers > Honda ATC 70's > 70 Tech Articles
TroyKrum
Thanks for putting this up here, Tres. Seems it is a common problem right now.
treshombre
Glad somebody notices all the damn hard work I do around here laughing.gif
ElderGeek
Treshombre,


Question one:
I have an '85 that is not shifting. I removed the side cover to proceed removing the clutch. The three screws that hold the plate which holds the clutch assembly are not moving. I have tried various phillips bits trying to get it to budge. Even my 1/4" rachet wench with phillips bit wont move it. I tried tapping gently while turning, etc. no luck. The screw heads are still sharp, but I will gaul them all up if I continue with more pressure, like an impact wrench.

Have you ever used a little heat to remove them? I assume you do not want to get the assembly too hot.

If/When they do get all gaulled up my last resort is to drill the heads off and get new screws. Allen head this time icon_wink.gif Do you know what size threads they are if I need to go that way?

Question two:




With out being able yet to remove the clutch and the primary driven gear, I do see the 'shift drum stopper plate' has a rip in it. (Upper left corner of your pic)

I didn't see the part listed on dratv's site. Any idea where I get one?

I am assuming I will find a few other parts to replace once the clutch and gear are out of the way. Like the gear shift arm.

Tool Question:

Is this the only 'special' tool I need to get everything apart on this side of the case?

Clutch removal tool

Last question:

Am I correct in thinking that when I reassemble the side cover it is better to have the engine on it's left side to make it easier to keep the clutch release parts in place while sliding the case cover back on?
treshombre
QUOTE (ElderGeek @ May 16 2010, 02:42 PM) *
Treshombre,


Question one:
I have an '85 that is not shifting. I removed the side cover to proceed removing the clutch. The three screws that hold the plate which holds the clutch assembly are not moving. I have tried various phillips bits trying to get it to budge. Even my 1/4" rachet wench with phillips bit wont move it. I tried tapping gently while turning, etc. no luck. The screw heads are still sharp, but I will gaul them all up if I continue with more pressure, like an impact wrench.

Have you ever used a little heat to remove them? I assume you do not want to get the assembly too hot.

If/When they do get all gaulled up my last resort is to drill the heads off and get new screws. Allen head this time icon_wink.gif Do you know what size threads they are if I need to go that way?

ANSWER: THE BEST WAY TO GET THEM OFF IS AN IMPACT DRIVER. I TAKE THE BIT (BY ITSELF NOT YET INSERTED INTO THE IMPACT DRIVER) AND TAP IT WITH A HAMMER SO THAT THE TEETH OF THAT BIT ARE FULLY ENGAGED IN THE GROOVES OF THE SCREW, THEN I PUT THE IMPACT DRIVER ON THE BIT AND SMACK THE @#$% OUT OF IT. SOMETIMES WITH A 1 LB SLEDGE. I HAVE NEVER NOT BEEN ABLE TO GET THESE SCREWS OUT USING THIS TECHNIQUE


Question two:




With out being able yet to remove the clutch and the primary driven gear, I do see the 'shift drum stopper plate' has a rip in it. (Upper left corner of your pic)

I didn't see the part listed on dratv's site. Any idea where I get one?

YOU CAN BUY THE SHIFT STOP HERE



I am assuming I will find a few other parts to replace once the clutch and gear are out of the way. Like the gear shift arm.

Tool Question:

Is this the only 'special' tool I need to get everything apart on this side of the case?

Clutch removal tool

YOU CAN BUY THE CLUTCH REMOVAL TOOL HERE


Last question:

Am I correct in thinking that when I reassemble the side cover it is better to have the engine on it's left side to make it easier to keep the clutch release parts in place while sliding the case cover back on?
ElderGeek
Thanks for the reply & and the links. Your tool link matched my tool link.

However, the part I am going to need is the 'lobed wheel' the arm rides on. The manual calls it the "shift drum stopper plate". Actually I will need the circle plate behind the lobed wheel. It may all be the same part, won't know until I take it off.

Having used the impact driver before I was aware of the 'tap in the bit' step, which I did. I then succeed in breaking off the tip of my impact bit. Along with having the clutch stack come apart with a few small springs flying out. I won't know if any went inside the case until I get the clutch assembly off to see what is missing. The inner most clutch plates are now hanging out of the clutch assembly. Sh!t!! does not cover what was said when that happened. shocker.gif So now I get to drill them out. One screw is hosed, another getting close, the third is still fresh.

These are right handed screws, lefty loosey, righty tighty? The manual just said to remove the three screws. So I assume they are normal right hand screws. This is a bad design by Honda. These screws should have been allen drives if not torx drive given what is need to remove them.

Did I do something wrong? The motor is laying on its left side, on the bench.

Pondering this thought:
So back in the day, when one of these came into the dealer for a clutch plate replacement the tech smacked the crap out of the screws to get them off?? One of those 'would love to see that" moments. They must have hated replacing clutch plates.
treshombre
I imagine you have already read this thread:

"Help i cant get the three screws out of clutch cover"

Info on how I remove stripped screws there...

I'm going to guess you are talking about number 7? or # 9 or both...

Click to view attachment

I can get either of them...

Kinda curious why you think you need them, did they get mangled some how?

Seeing as you now have so much time into this, might be time to cut your losses and buy a new heavy duty
Clutch New Clutch it will come with new cover and screws etc as well as the side cover gasket you are going to need.

Alternatively you can get it to me somehow and I will fix it. I live in Temecula
ElderGeek
I spent some time just looking at things seeing how it all works together. From what I can see with my flashlight is the arm, (10) is broke completely off like they do. Still have not found the roller end of the arm yet. I'm hoping it's down behind the driven gear where I can't see it. Will need one of those.
The lobe gear, (7) looks OK at this point.
The backing plate, (8) is actually 'ripped' between the lobs. Either it was ripped when the (10) arm broke, or the other arm, (13) did it because arm (10) was missing, not quite sure yet. So I will need one of those, (8).

I suspect someone really jumped on the shifter to cause this. I did find the other spring from the clutch assembly that popped off, so I got that going for me.....


I did not see that thread but I used my impact driver exactly as posted. I have three non-running basket cases I am playing with. One is running now. The second needs a carb. (see white powder post), and this one. I'm using them as a self training/learning experience before I start my Lifan conversion with a laundry list of mods. The better of the other two will be put back to stock. The third will either be sold or parted out. Your site says the HD clutches are out of stock anyway. Either way, the screws need to come out. I'll get it one way or another.

Looking forward to the new tires I ordered from you last Friday!!
ElderGeek
Well, after twisting the tips off of two bits I finally got them off. I need to get three new screws obviously but at least I didn't need to drill them out.


Thanks for the help Tres!!
victorfb
i know this is an old thread, but i have a question. the manual says to replace the shift stop AND stopper plate together. is this correct even if the stopper plate looks ok? my 85 is having the same sort of shift problems as described and i am betting i will see the same damage when i open mine up. just wondering if i should order both parts, or just the shift stop.
turbosubie
Do it why you are in there. Its not fun pulling the clutch on and off. They are cheap on dratv.com.
victorfb
QUOTE (turbosubie @ Nov 14 2011, 03:33 PM) *
Do it why you are in there. Its not fun pulling the clutch on and off. They are cheap on dratv.com.


i saw the shift stop arms, but didnt see the stopper plate on dratv.com. i must have missed them. that is why i asked in this thread. i didnt think i would find the stopper plate. if they indeed do have the plate, i will replace both for sure. thanks, i will check again.
victorfb
well i opened it up and found the roller piece on the bottom of the case. broke exactly where the one in the pic broke. looking closely at the two pieces, it looks like honda had a bad defect. the metal looked like it had a seem, or was cut during the stamping process. very little material was holding it together. i ended up TIG welding it back together just for kicks. i will still get a new one to keep with me just in case, but i think the repaired one will hold. it sure fixed the shifting problem. and the rest of the inside parts looked GREAT. very little wear.
jasonpwms129
Tranny Not Shifting?

You are supposed to stay away from that side of town . . .
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