I'm in the process of rebuilding by clutches on a 89 Exciter I just picked up. The weights in the primary say "82m" and the service manual also lists 87m as a weight. What the difference? Also the previous owner said one of the clutches was replaced but didn't say which one. I'm assuming its the secondary because its too big of a diameter (foot rest to clutch clearance) to remove the belt without removing the secondary from the shaft. I don’t know the part number of the secondary but it’s a Yamaha because it has the little symbol on the helix. Is it normal to have a very tight clearance between the secondary and back side of the foot rest? Nothing looks bent to me.
89 Exciter primary clutch weights
- Thread starter joe45
- Start date
the 82m's were used for high altitude tuning if they are the 82m -90's. similar in profile to the 87m but lighter by a few grams. there was also a 82m-00 that was heavier and a much different profile.
more importantly than which weight is how is that weight working with the other clutch components? if your rpms are on target and your not slipping the belt, dont worry.
as for your secondary problem, there is a number stamped on the rear sheave. you will see it with the clutch off. the belt to footrest clearance is tight on those but the belt should clear. sounds like something in the framework is bent.
more importantly than which weight is how is that weight working with the other clutch components? if your rpms are on target and your not slipping the belt, dont worry.
as for your secondary problem, there is a number stamped on the rear sheave. you will see it with the clutch off. the belt to footrest clearance is tight on those but the belt should clear. sounds like something in the framework is bent.
the 88r's came out in the early 90's. i think first used on the exciterII's.
i dont recall any difference in diameters, but i do know the sheave angles were different.
i dont recall any difference in diameters, but i do know the sheave angles were different.
OK, that makes sense that the secondary was the clutch that the previous owner said was replaced because the primary looks like it has more time on it. I don't want to put a ton of money in this sled but I took apart the rear suspension and all the idler wheel bearings needed to be replaced and the rear suspension mount shaft. That shaft (8L8-47475-00-00) is $90 so I'm going to just make one out of steel. The ends of it where flaking off the peeling a union never seen aluminum do that before. Amazingly all the bolts came apart nicely accept for that rear shaft. Even both shocks seem fine.
Last edited:
measure the length. i have many misc skid parts from that era in a tub, most likely have a match for you. yours for shipping.
i will have access to parts tubs next week when the camaro goes to the body shop.
i will have access to parts tubs next week when the camaro goes to the body shop.
Mine is messed up pretty good on the end but it measured 15 13/16". It could have been a smidgen longer though. Its the one that mounts the suspension on the back end of the tunnel. The same one that holds the coil springs for the rear. Let me know if you have one and I will shoot you some money via paypal if that works.
i will look through the parts bins and see what i have available then let you know.
Throttle Junkie35
New member
If you have the 88R secondary, I would strongly recommend the Exciter II yxr style primary. The 88r secondary is made for the 89L belt which is wider than what came on the 89. I dont think the mis-matched clutch set up you have would actually work very well. Chances are your belt is the 89X and it is sitting way down in the secondary. Not good. As Snowdad said, it sounds like your steering gate and foot rest may be tweaked if you need to remove the secondary to remove the belt. If I were you, I would buy the primary clutch from 00SRXJOE.
Throttle Junkie35
New member
7200 is target rpm on a stock exciter
Throttle Junkie35
New member
I would try your spring in the B2. Thats one click tighter. I think B2 is the stock position anyway. What helix are you running??