|
|
Post by szabgab on Feb 12, 2016 19:54:36 GMT
Dear all,
I decided to swap my gold reverse Comstar wheels for a set of Boomerang Comstars, I like them better and the front wheel is an inch smaller, than the original. The front wheel was an easy swap, but I am facing trouble with the rear. The original rear wheel had the ordinary four cush drive - four screw 36T sprocket, the new one has got a different setup with five cush drives, different insert and a need for a completely different sprocket (with five holes and a larger inside diameter). I thought, no problem, I will check my parts catalogue, but that one I have contains only the four-cush, reverse comstar variant. So I am stuck here, obviously there are Honda sprockets on sale everywhere, but which one is the one, I need? The 400ND is a rare beast in the UK, so you guys might not know the answer, but if somebody does, or could put in the right direction, I would be very happy indeed. I know for a fact, that the CX500E used a similar wheel, not sure if it is the same one though...
Thanks!
|
|
|
|
Post by szabgab on Feb 12, 2016 20:01:15 GMT
I have just realised, I am talking bulls. The CX500 uses a shaft drive...
|
|
|
|
Post by szabgab on Feb 12, 2016 20:58:55 GMT
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 12, 2016 21:01:36 GMT
|
|
|
|
Post by na44superdream on Feb 12, 2016 21:35:51 GMT
|
|
|
|
Post by na44superdream on Feb 12, 2016 21:58:10 GMT
Dear all, .... So I am stuck here, obviously there are Honda sprockets on sale everywhere, but which one is the one, I need? The 400ND is a rare beast in the UK, so you guys might not know the answer, but if somebody does, or could put in the right direction, I would be very happy indeed. I know for a fact, that the CX500E used a similar wheel, not sure if it is the same one though... Thanks! Though the CX500E front wheel, and the CB900FC, have similar wheels, but they will not fit as a bolt on to the Superdream as they are MT2.50 and the hub is 10mm wider. Don't know the rear wheel dimensions. The CB400ND uses the same sprocket carrier as the CB450DX / CB450N. |
|
|
|
Post by szabgab on Feb 21, 2016 11:54:09 GMT
Hi guys, thanks for the info. I did order the JTR1332 rear sprocket at the end, it's a bolt on thing (I hope  ). Anyway, am I right in thinking, that in order to replace the front sprocket you have to drain the oil and take of the whole left side cover, change the sprocket, use a new seal and put everything back together? The newer Honda blocks seem to have a two-part side cover, mine is one piece though  Thanks! Gabriel |
|
|
|
Post by na44superdream on Feb 21, 2016 12:02:57 GMT
On the Superdream, to take the the left hand cover off you do not have to drain the oil, the gasket is to stop the water getting into the generator, if you have a tube of clear instant gasket that would do. Just need to undo the little gear change arm and undo the case bolts.
|
|
|
|
Post by szabgab on Feb 21, 2016 12:05:26 GMT
|
|
|
|
Post by na44superdream on Feb 21, 2016 14:17:25 GMT
The jtf276 is for a 520 chain and is not compatible with the JTR1332.
CB400N the boomerang wheels (CB400ND)
Option 1. JTR1332/36 rear with a JTF293/16 with the extended boss ground back or machined back so the sprocket is about 10mm thick. 100link 525 chain.
Option 2. jtf276/16 with a 520/36T [standard supplier unknown) rear sprocket (you may need to get an alloy one cut) 100 link 520 chain
Option 3. JTF278 front, with a JTR1334 rear with 100 link 530 chain (but if you get a 530 o ring, it is a very heavy chain, I've got one and I'm not going to use it as it is like a tank track )
All the same 5/8" pitch, but just different widths 520 1/4" chain width, approx 6mm sprocket width, 525 5/16" 7.2mm or 0.284" sprocket width, 530 3/8" chain, with 8.8mm sprocket width.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 21, 2016 14:45:22 GMT
All the same 5/8" pitch, but just different widths 520 1/4" chain width, approx 6mm sprocket width, 525 5/16" 7.2mm or 0.284" sprocket width, 530 3/8" chain, with 8.8mm sprocket width. For some reason I still find it entertaining (?) that even the Japanese still have to use Imperial dimensions for chains , as NA44Superdream says the 5 in the chain size is the pitch in 1/8"s of an inch and the second two digits are the width in 1/8"s . Though I guess to get their own back all Brit bikes have metric thread spark plugs ?.......... |
|
|
|
Post by szabgab on Feb 21, 2016 21:41:32 GMT
The jtf276 is for a 520 chain and is not compatible with the JTR1332 Oh damn,I wish I had realised that. I do have everything here already,ordered from a web-shop So are the 520-525 chains very different? I mean could the front sprocket be narrower,or that would be trouble? Also... Do I have to take the whole left side cover off,or is there a different solution? Thanks! |
|
|
|
Post by szabgab on Feb 21, 2016 21:46:14 GMT
On the Superdream, to take the the left hand cover off you do not have to drain the oil, the gasket is to stop the water getting into the generator, if you have a tube of clear instant gasket that would do. Just need to undo the little gear change arm and undo the case bolts. Hi,sorry,I have not realsied,you have answered my question,so I asked it again So any sort of an instant gasket,or paper cut out and red heat tolerant silicone paste used would be just fine? |
|
|
|
Post by na44superdream on Feb 22, 2016 20:14:04 GMT
"So are the 520-525 chains very different? I mean could the front sprocket be narrower,or that would be trouble?" Could be trouble, I would not take the risk, it is only 1.6mm extra clearance, but the chain tension etc would have to be spot on, or I would worry!
"So any sort of an instant gasket,or paper cut out and red heat tolerant silicone paste used would be just fine?" Most of the gasket will likely remain when you separate the side. This clear silicone would help to seal and make watertight, should you not have a new gasket to hand. If using a new gasket a smear of Hylomar blue on the casing would help future removal.
www.granvilleoil.com/pdfTechData2.php?ptdID=135
hylomar.com/warrick/wp-content/uploads/2013/10/Hylomar_Universal_Blue_Issue_6.pdf
|
|
|
|
Post by szabgab on Feb 23, 2016 15:05:22 GMT
"So are the 520-525 chains very different? I mean could the front sprocket be narrower,or that would be trouble?" Could be trouble, I would not take the risk, it is only 1.6mm extra clearance, but the chain tension etc would have to be spot on, or I would worry!"So any sort of an instant gasket,or paper cut out and red heat tolerant silicone paste used would be just fine?" Most of the gasket will likely remain when you separate the side. This clear silicone would help to seal and make watertight, should you not have a new gasket to hand. If using a new gasket a smear of Hylomar blue on the casing would help future removal.www.granvilleoil.com/pdfTechData2.php?ptdID=135hylomar.com/warrick/wp-content/uploads/2013/10/Hylomar_Universal_Blue_Issue_6.pdf
So I have red RTV silicone at hand, I suppose, it is pretty much the same, you have sent me the link to. Although this is ugly rust-red in colour www.permatex.com/products-2/product-categories/gasketing/gasket-makers/permatex-high-temp-red-rtv-silicone-gasket-detail
The sprocket issue is a more serious one, I dont have access to a machining place and I doubt my little Dremel grinder would do a great job on a high carbon japanese steel |
|
I forgot about the cmsl website, and they show every part needed... So it looks like a JTR1332 sprocket ( 
