Well so much for my sleds maiden voyage,alacart cat chaincase,again

[snowbeast]

I have had three R motion rear Doo's and my SW rides every bit as good. Others have reported hard riding SW's but I have yet to experience anything rough or hard about mine over any type of trails. I find the rear skid to be very smooth and compliant.

Hi brother,i believe it is a milage problem,and him being 30 lbs lighter than I am. Once I am able to ride it,at 200lbs I feel it will be ok,and 500 miles will losen up a lot of that type of thing.

 

[Jafo1970]

I'm not convinced the borg gears are hyvo. The chain is. You can tell the difference in chains by the size of the pins. Bigger pin is hyvo. Cat supposedly went to hyvo gears/chain and I sent my stock turbo 16 gears and chain out to be tested. The result was hyvo chain and non hyvo gears. They were 13w gears and chain that was put in the 16 turbo cats and everyone was told its all hyvo. So I can't prove the Yamaha stock gears are not hyvo but I wouldn't assume they are. I know the scott taylor top gear is expensive but he also puts 2 lube holes in the gear to lube the bushing in there. These seem to wear out around 3000 to 4000 mile mark and create a wobble on the shaft which can throw your sled out of gear. Just food for thought.

 

[snowbeast]

I'm not convinced the borg gears are hyvo. The chain is. You can tell the difference in chains by the size of the pins. Bigger pin is hyvo. Cat supposedly went to hyvo gears/chain and I sent my stock turbo 16 gears and chain out to be tested. The result was hyvo chain and non hyvo gears. They were 13w gears and chain that was put in the 16 turbo cats and everyone was told its all hyvo. So I can't prove the Yamaha stock gears are not hyvo but I wouldn't assume they are. I know the scott taylor top gear is expensive but he also puts 2 lube holes in the gear to lube the bushing in there. These seem to wear out around 3000 to 4000 mile mark and create a wobble on the shaft which can throw your sled out of gear. Just food for thought.

Hi Bro,we found the culprit,the 84 pitch cat chain,i cant find my slip telling me what its number is,but all I can find under cat numbers for a 84 pitch is a 13 wide,not 15 like my stock chain. The chain failed in 4 places,and when compared to my 86 pitch stock chain which is now going in,it is light,the way they weve the links togeather,not nearly as heavy,hopefully that was the problem. So for now 22 top 15 wide and 41 stock 13 wide on stock 86 pitch 15 wide,man that mother is tight fit.

 

[Bigbluemachine]

I just had to tighten my track at 1,800 miles due to ratcheting.

 

[snowbeast]

Don't think it was track rachet,after further review,the damage to the chaincase,its determined chain failure may of been what he heard. Sense it was only the chain that broke,and no other parts were damaged,and it was a 15 wide 84 pitch cat chain p/n 2602-365 newer chain,but it did not like the 70 or so extra horses lol.

 

[Bigbluemachine]

Cat chain hmmm

 

[snowbeast]

Boy did we ever get lucky,after breaking into case,thinking the worse,wow only a broke kitty chain,that we installed to gear up for extra power. The fact that there were so many chances,this could have been very bad,and wasent,is just almost unbelievable,but I am glad it was what it was and nothing more. I had picked up a cat 84 pitch chain in order to gear up,because stock gear ratio is sorta short for this kind of power. So I had already bought cat 38 hyvo bottom 13 wide,and used stock 21 hyvo 15 wide,so I needed a 15 wide hyvo 84 pitch chain,ok we got what we thought was a hyvo chain,after looking it over more closely now,and compairing to stock 86 pitch Yamaha hyvo chain.well you can clearly see the links and pins are smaller and weaker,the way they interweve thim. the chain p/n 2602-365 so we now have it 22 top 15 wide hyvo,stock 41 hyvo 13 wide,and stock 86 pitch Yamaha hyvo chain,and I don't think we will have a lot more problems again. Good thing that chain did not come apart at 115 when he said track racheted,because I now think he was hearinf chain rachet,or just chain noise,flooping around,and glad it did not jam up and stop him dead in his tracks,he may not still be here talking to me. Thank God

 

[snowbeast]

Cat chain hmmm

Ya,it was suppose to be hyvo chain,but eventhough it is 15 wide,same as Yamaha stock chain,you can see a difference in the way it is put togeather,smaller pins,differant weve.

 

[yamadoo]

Boy did we ever get lucky,after breaking into case,thinking the worse,wow only a broke kitty chain,that we installed to gear up for extra power. The fact that there were so many chances,this could have been very bad,and wasent,is just almost unbelievable,but I am glad it was what it was and nothing more. I had picked up a cat 84 pitch chain in order to gear up,because stock gear ratio is sorta short for this kind of power. So I had already bought cat 38 hyvo bottom 13 wide,and used stock 21 hyvo 15 wide,so I needed a 15 wide hyvo 84 pitch chain,ok we got what we thought was a hyvo chain,after looking it over more closely now,and compairing to stock 86 pitch Yamaha hyvo chain.well you can clearly see the links and pins are smaller and weaker,the way they interweve thim. the chain p/n 2602-365 so we now have it 22 top 15 wide hyvo,stock 41 hyvo 13 wide,and stock 86 pitch Yamaha hyvo chain,and I don't think we will have a lot more problems again. Good thing that chain did not come apart at 115 when he said track racheted,because I now think he was hearinf chain rachet,or just chain noise,flooping around,and glad it did not jam up and stop him dead in his tracks,he may not still be here talking to me. Thank God

Always good to have the least damage......good for you

 

[snowbeast]

Yes it sure is,but we just crap lucky.

 

[DC5]

The 2602-365 is for CAT silent chain, not the hyvo. The correct cat part number for 84p 15w hyvo chain is 2602-838. Thats why you were getting a ratcheting noise in the chain case and the chain eventually let go.

 

[runnin' scared 2]

Glad to hear. Maybe the chain was jumping/on it's way out, not so much the track ratcheting.

 

[cannondale27]

I have not checked all of this list for accuracy but all I have its right on. So be careful when buying Cat stuff. They were late to the ballgame vs the Vipers and 7000's
Standard Silent Chain

Two Stroke Top Gears:
19 tooth 13 wide 2602-582
19 tooth 15 wide 2602-666
21 tooth 13 wide 2602-377
21 tooth 15 wide 2602-212
22 tooth 13 wide 2602-335
22 tooth 15 wide 2602-461
23 tooth 13 wide 2602-403

Four Stroke Top Gears:
21T 13 WIDE 1702-201
21T 15 WIDE1702-202
22T 13 WIDE1702-074
22T 15 WIDE1702-191
23T 15 WIDE1702-239
24T 15 WIDE 1702-203

Bottom Gears:
35 tooth 13 wide 2602-405
36 tooth 13 wide 2602-406
37 tooth 13 wide 2602-371
38 tooth 13 wide 2602-372
41 tooth 13 wide 2602-522
48 tooth 13 wide 2602-364
49 tooth 13 wide 2602-363
50 tooth 13 wide 2602-584
50 tooth 13 wide Aluminum 2602-620

Chains:
13 wide 84P 2602-369
13 wide 90P 2602-370
15 wide 84P 2602-365
15 wide 86P 2602-710
15 wide 90P 2602-373

Four Stroke Reverse:
Bottom Gear: 40 tooth 11 wide 2602-276
Chain: 11 wide 68P 2602-342

Borg Warner Hyvo Chain

Two Stroke Top Gears:
18 tooth 13 wide 2602-943
19 tooth 13 wide 2602-823
19 tooth 15 wide 2602-828
20 tooth 13 wide 2602-824
21 tooth 13 wide 2602-825
21 tooth 15 wide 2602-829
22 tooth 13 wide 2602-826
22 tooth 15 wide 2602-830
23 tooth 13 wide 2602-827

Four Stroke Top Gears:
20T 15 WIDE 1702-423
21T 13 WIDE 1702-351
21T 15 WIDE 1702-394
22T 13 WIDE 1702-382
22T 15 WIDE 1702-395
24T 13 WIDE 1702-352
24T 15 WIDE 1702-396

Bottom Gears:
35 tooth 13 wide 2602-831
36 tooth 13 wide 2602-833
37 tooth 13 wide 2602-834
38 tooth 13 wide 2602-836
41 tooth 13 wide 2602-745
48 tooth 13 wide 2602-790
48 tooth 13 wide Aluminum 2602-874
49 tooth 13 wide 2602-758
49 tooth 13 wide Aluminum 2602-875
50 tooth 13 wide 2602-746
50 tooth 13 wide Aluminum 2602-876
53 tooth 13 wide 2602-746
54 tooth 13 wide 2602-746

Chains:
13 wide 84P 2602-837
13 wide 86P 2602-843
13 wide 90P 2602-760
13 wide 92P 2602-744
13 wide 96P 2602-944
15 wide 84P 2602-838
15 wide 86P 2602-839
15 wide 90P 2602-840
15 wide 92P 2602-841
15 wide 98P 2602-945

 

[snowbeast]

The 2602-365 is for CAT silent chain, not the hyvo. The correct cat part number for 84p 15w hyvo chain is 2602-838. Thats why you were getting a ratcheting noise in the chain case and the chain eventually let go.

Thanks bro,that makes sense now than.

 

[snowbeast]

I have not checked all of this list for accuracy but all I have its right on. So be careful when buying Cat stuff. They were late to the ballgame vs the Vipers and 7000's
Standard Silent Chain

Two Stroke Top Gears:
19 tooth 13 wide 2602-582
19 tooth 15 wide 2602-666
21 tooth 13 wide 2602-377
21 tooth 15 wide 2602-212
22 tooth 13 wide 2602-335
22 tooth 15 wide 2602-461
23 tooth 13 wide 2602-403

Four Stroke Top Gears:
21T 13 WIDE 1702-201
21T 15 WIDE1702-202
22T 13 WIDE1702-074
22T 15 WIDE1702-191
23T 15 WIDE1702-239
24T 15 WIDE 1702-203

Bottom Gears:
35 tooth 13 wide 2602-405
36 tooth 13 wide 2602-406
37 tooth 13 wide 2602-371
38 tooth 13 wide 2602-372
41 tooth 13 wide 2602-522
48 tooth 13 wide 2602-364
49 tooth 13 wide 2602-363
50 tooth 13 wide 2602-584
50 tooth 13 wide Aluminum 2602-620

Chains:
13 wide 84P 2602-369
13 wide 90P 2602-370
15 wide 84P 2602-365
15 wide 86P 2602-710
15 wide 90P 2602-373

Four Stroke Reverse:
Bottom Gear: 40 tooth 11 wide 2602-276
Chain: 11 wide 68P 2602-342

Borg Warner Hyvo Chain

Two Stroke Top Gears:
18 tooth 13 wide 2602-943
19 tooth 13 wide 2602-823
19 tooth 15 wide 2602-828
20 tooth 13 wide 2602-824
21 tooth 13 wide 2602-825
21 tooth 15 wide 2602-829
22 tooth 13 wide 2602-826
22 tooth 15 wide 2602-830
23 tooth 13 wide 2602-827

Four Stroke Top Gears:
20T 15 WIDE 1702-423
21T 13 WIDE 1702-351
21T 15 WIDE 1702-394
22T 13 WIDE 1702-382
22T 15 WIDE 1702-395
24T 13 WIDE 1702-352
24T 15 WIDE 1702-396

Bottom Gears:
35 tooth 13 wide 2602-831
36 tooth 13 wide 2602-833
37 tooth 13 wide 2602-834
38 tooth 13 wide 2602-836
41 tooth 13 wide 2602-745
48 tooth 13 wide 2602-790
48 tooth 13 wide Aluminum 2602-874
49 tooth 13 wide 2602-758
49 tooth 13 wide Aluminum 2602-875
50 tooth 13 wide 2602-746
50 tooth 13 wide Aluminum 2602-876
53 tooth 13 wide 2602-746
54 tooth 13 wide 2602-746

Chains:
13 wide 84P 2602-837
13 wide 86P 2602-843
13 wide 90P 2602-760
13 wide 92P 2602-744
13 wide 96P 2602-944
15 wide 84P 2602-838
15 wide 86P 2602-839
15 wide 90P 2602-840
15 wide 92P 2602-841
15 wide 98P 2602-945

Thanks steve,we got very lucky,that chain could have been so destructive,i am glad it was not.