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  #61  
Old 05-18-2010, 10:03 AM
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Originally Posted by Mainjet2001 View Post
Howard....
That is flat beautiful.
Yes it is
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  #62  
Old 05-18-2010, 10:16 AM
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Thanks Guy's

The only thing that we didn't do was replace the rim & spoke with a heavy duty set from Buchanan's & Paint the hubs!

I was heat cycling it the other day & it's sounds real crisp!

If I can work out the BIG KNOT in my back I'll go get her a brake in run.
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  #63  
Old 05-18-2010, 10:25 AM
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Howard, Sorry to hear about the back trouble -- that is NO fun at all.

How do you replace the spokes? 1 by 1 so it stays true? Or do you just remove them all and re-true it?
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  #64  
Old 05-18-2010, 10:39 AM
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Originally Posted by Big Maico 393 View Post
Thanks Guy's
If I can work out the BIG KNOT in my back I'll go get her a brake in run.
Ibuprofen Howard, Ibuprofen. I use it and it helps a bunch.
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  #65  
Old 05-18-2010, 02:54 PM
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Originally Posted by Woody_393 View Post
Howard, Sorry to hear about the back trouble -- that is NO fun at all.

How do you replace the spokes? 1 by 1 so it stays true? Or do you just remove them all and re-true it?
Woody,

The best way is to get a new rim & replace all the spokes at once & true it up, when dealing with drum brake bike you should have the drum cut/trued while you are replacing the spokes.

P.S.: The statement about replacing the rim is based on working on a vintage bike, most of the time if you have a modern rim that's not egg shaped or has flat spots you can reuse it.

Any time you replace spokes it a good idea to try & get the rim as true as you can,It's even a good idea when you're not replacing spokes. On a dirt bike it's not as critical as street bike or a Road racer.

Last edited by Big Maico 393; 05-19-2010 at 09:24 AM.
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  #66  
Old 05-18-2010, 03:06 PM
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Thanks BigM
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  #67  
Old 05-19-2010, 06:02 PM
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Very nice H. Great job.
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  #68  
Old 06-04-2010, 06:16 PM
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Update:

Greg & I went to ride at Rio Bravo Monday & we had to wait for it to dry out a bit as it had rained, they where dragging the track & we were talking with a few of the older vintage riders that used to race Rio in the old day's

Greg was talking to Jake DeBoe & they got on the subject of how the 490 was setup & the Greg told Jake that we still need to get a set of Ohlins, Jake told him that he had a set & a complete 81 Maico 250 plus a bunch of spare parts.

Well Greg called me & told me that he bought all the Maico stuff from Jake,Look like I get to help Greg put a 250 together!

Also look like we Will take the Ohlins & put them on the 490, He also got a set of new wheels with Excell rims & Bucannon spokes that will go on the 490 for now.

Greg said that he has lots of boxes with spare parts & a extra 250 & 440 motors too!
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  #69  
Old 06-04-2010, 11:37 PM
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That is a killer find Howard , Kyle might want the 440 motor for a backup , he will need one at some point........
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  #70  
Old 06-05-2010, 09:20 AM
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That is a killer find Howard , Kyle might want the 440 motor for a backup , he will need one at some point........

Ya that's what I was thinking too!
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  #71  
Old 12-15-2010, 08:04 AM
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epic build man!!
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  #72  
Old 08-07-2017, 08:28 AM
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Default Maico Question

Hi: I just bought an 81 490, it has a round slide mikuni carb, I haven't ridden it yet but I did get it started,( it was somewhat difficult, would hit once then die) I noticed that the slide stop screw is all the way in but it still doesn't idle, compression feels pretty good, not sure about much else. Would anyone have any idea on where I should start with the carb jetting? It is a new carb, this bike was cosmeticly restored most all of the external parts were changed with new stuff, I am in the process of trying to make it race ready, hoping to ride it a few times at our TVRC races, then Rio Bravo in November is my goal. Thanks in advance, Ben
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  #73  
Old 08-08-2017, 06:29 AM
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Originally Posted by 426m View Post
Hi: I just bought an 81 490, it has a round slide mikuni carb, I haven't ridden it yet but I did get it started,( it was somewhat difficult, would hit once then die) I noticed that the slide stop screw is all the way in but it still doesn't idle, compression feels pretty good, not sure about much else. Would anyone have any idea on where I should start with the carb jetting? It is a new carb, this bike was cosmeticly restored most all of the external parts were changed with new stuff, I am in the process of trying to make it race ready, hoping to ride it a few times at our TVRC races, then Rio Bravo in November is my goal. Thanks in advance, Ben
Not a Mikuni guy, but you can try & contact

Sudco International & ask them , they are very helpful in get you close.

You could also go out to a TVRC race & ask around, If you can find Tim Willis he's a Maico guru!
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