|
|
Post by andrel on Dec 13, 2018 8:47:44 GMT 1
Getting to the engine rebuild stage of my project (31K) and found the current crank in need of replacement.
Knowing that Yambits stuff is sometimes a hit and miss in respect of quality (e.g crank shaft seals), i would like to know whether you guys would use the complete Yambits crank or whether there are any issues.
Thanks
|
|
|
|
Post by Denzil on Dec 13, 2018 8:49:59 GMT 1
Don't bother, get one from Norbo or Muttsnuts. You will regret buying anything other than washers from Yambits.
|
|
|
|
Post by Norbo on Dec 13, 2018 8:54:20 GMT 1
Mate if you want new or rebuilt ones i can sort you out all jap bearings and rods, and i have them in ready to go so no waiting about . if your interested just message me ill sort it for you . and the seals are gen yam of course
|
|
|
|
Post by andrel on Dec 13, 2018 9:15:53 GMT 1
Mate if you want new or rebuilt ones i can sort you out all jap bearings and rods, and i have them in ready to go so no waiting about . if your interested just message me ill sort it for you . and the seals are gen yam of course Hi Norbo, that sounds good thanks. Will be in touch shortly. |
|
|
|
Post by rd350rob on Dec 13, 2018 9:34:00 GMT 1
I bought one of Norbo's Jap cranks.....top notch.
|
|
|
|
Post by JonW on Dec 13, 2018 10:49:42 GMT 1
Don't bother, get one from Norbo or Muttsnuts. You will regret buying anything other than washers from Yambits. While I agree Norbos crank is the way forward, there are many more parts you can buy from Yambits, a bunch of what they sell is branded and OEM goods and many of their own parts are good, avoid anything rubber is my advice. |
|
|
|
Post by mattybeckett on Dec 13, 2018 14:59:25 GMT 1
Don't bother, get one from Norbo or Muttsnuts. You will regret buying anything other than washers from Yambits. While I agree Norbos crank is the way forward, there are many more parts you can buy from Yambits, a bunch of what they sell is branded and OEM goods and many of their own parts are good, avoid anything rubber is my advice. Or cables lol. |
|
|
|
Post by JonW on Dec 13, 2018 21:45:31 GMT 1
While I agree Norbos crank is the way forward, there are many more parts you can buy from Yambits, a bunch of what they sell is branded and OEM goods and many of their own parts are good, avoid anything rubber is my advice. Or cables lol. I only ever buy OEM cables, its almost always worth the extra money  |
|
|
|
Post by andrel on Dec 14, 2018 7:13:21 GMT 1
I can get hold of a Hot Rod's Banshee crank locally and, as the slightly higher purchase is offset by the costs associated with importing a crank, i have decided to go that way.
Will post a pic when i get it.
Have also ordered a set of Wiseco pistons to go with that.
|
|
|
|
Post by andrel on Dec 15, 2018 13:58:33 GMT 1
Christmas comes early Also ordered OEM head gasket and crank shaft seals  |
|
|
|
Post by bare on Dec 15, 2018 23:43:18 GMT 1
Should read: Assembled 'mostly' in USA.
Mfg'd in Asia.
|
|
|
|
Post by andrel on Dec 17, 2018 13:03:13 GMT 1
 Interesting write up (OEM vs Wiseco vs Hotrods) and video on the Hotrod connecting rod manufacturing process. It seems the roods are then sent of to the "factory" to be assembled into a crankshaft and this is then the Taiwanese piece. The rods looks good - here is hoping the crankshaft assembly is of the same standard. www.pinitmx.com/blog/wiseco-crankshafts-vs-hot-rods-crankshafts Where is Yambits crankshafts made? Anyone knows? |
|
|
|
Post by Tobyjugs on Dec 17, 2018 17:50:43 GMT 1
I've stripped a couple of cranks now and there is no comparison to the original cranks. I have to use more hydraulic pressure to strip and rebuild an original crank compared to cranks from Norbo or MBD.
I'm not slagging Norbo or MBD cranks off. There is just more pressure needed on an original cranks to do the work. It does make me wonder how many companies out there make and supply the parts? Maybe they all come from the same source?
|
|
|
|
Post by Norbo on Dec 17, 2018 19:15:15 GMT 1
Id agree with that yam ones are best but they are over a grand and ive never had a crank give out.
|
|
|
|
Post by midlifecrisisrd on Dec 17, 2018 19:19:03 GMT 1
I've stripped a couple of cranks now and there is no comparison to the original cranks. I have to use more hydraulic pressure to strip and rebuild an original crank compared to cranks from Norbo or MBD. I'm not slagging Norbo or MBD cranks off. There is just more pressure needed on an original cranks to do the work. It does make me wonder how many companies out there make and supply the parts? Maybe they all come from the same source? I reckon the webs are all made by the same company Steve |
|
|
|
Post by midlifecrisisrd on Dec 17, 2018 19:24:44 GMT 1
|
|
|
|
Post by midlifecrisisrd on Dec 17, 2018 19:27:02 GMT 1
|
|
|
|
Post by Tobyjugs on Dec 17, 2018 21:10:06 GMT 1
Id agree with that yam ones are best but they are over a grand and ive never had a crank give out. I've got one of yours fitted in the RD that come second in a dirt sprint competition against much bigger bikes. That engine has had a hard life so far with the rev limiter set at 11500 rpm so i can also vouch for your cranks. Most of the people on this forum want technically the best for their bikes, but i will stick my neck out and say less than 50% use n abuse them, so a crank of less quality will also be suffice. I don't think i have ever read a sad story of crank failure due to main bearing failure or the crank spreading. I have had a crank begin to spread but this crank had an unknown history until i started playing with it. First thing i found was that it was twisted so i pressed it apart and put it together in phase. Later i noticed it started spreading so i pressed it back into place and spot welded it. This has also been used and abused and so far not failed. It is scheduled for an inspection this winter as it has about 4000 miles on it which has included track days,flat tracking and a sprint race as well. |
|
|
|
Post by Norbo on Dec 18, 2018 13:17:14 GMT 1
How are they cheeper at £490 My all jap webs and bearing ones are £345 ? not yam but still all jap and no import duty . But if you did try and get an gen yam one from the uk it would be a lot more i agree |
|
|
|
Post by muttsnuts on Dec 18, 2018 14:01:42 GMT 1
I can supply hotrod cranks both stock and stroked, I have the stroked cranks on the shelf (5 in fact)
All crank webs are made by 3 major companies, all based in Thialand, rods are a different matter and are made by various other companies, if you go billet crank, then they are generally made by the company advertising them e.g. crankworks, but then you'll pay around £1k for the crank, but it will be top draw as well
Agree Yamaha cranks are excellent, some stuff out there is inferior, but with some careful research you should be ok
|
|
|
|
Post by midlifecrisisrd on Dec 18, 2018 19:10:08 GMT 1
How are they cheeper at £490 My all jap webs and bearing ones are £345 ? not yam but still all jap and no import duty . But if you did try and get an gen yam one from the uk it would be a lot more i agree Yes i was comparing to genuine in the UK How did your boy get on with the CBT? Steve |
|
|
|
Post by Norbo on Dec 18, 2018 19:53:17 GMT 1
he passed so now just need to insure and tax the bike
|
|
