McBob,
Have you checked the pop-off pressure on them,
and the falcrum height ?
Many times a little more pop-off pressure, or lower falcrum height will correct an issue like that.
Search found 106 matches
- Tue Jul 08, 2008 9:30 pm
- Forum: General Discussion
- Topic: Tillerton HR's
- Replies: 2
- Views: 3381
- Sun Jun 29, 2008 11:22 am
- Forum: General Discussion
- Topic: my fav wb820
- Replies: 11
- Views: 11347
Re: my fav wb820
OK, more 820 secrets. Not really illegal, but definitely in the gray area. WKA had a rule that you could not turn down the screws used on the coil, or stator plate, to limit advance. If you run really big point gap, the coil would get out of sync with the flywheel magnets, you have little dwell time...
- Thu Jun 26, 2008 11:25 am
- Forum: General Discussion
- Topic: my fav wb820
- Replies: 11
- Views: 11347
Re: my fav wb820
Butch, About 18 or so years ago when my son was running Jr. Sportsman with an 820, (everyone else was running that little stinking over priced POS 80cc DAP), and had very good results with it. We had to run a really thick head gasket, had to have half the reed cage blocked off, and had a maximum gea...
- Tue Jun 24, 2008 4:56 pm
- Forum: General Discussion
- Topic: my fav wb820
- Replies: 11
- Views: 11347
Re: my fav wb820
Are you talking about this auction?: http://cgi.ebay.com/ebaymotors/Vintage-Kart-NOS-2-Original-West-Bend-820-Engines_W0QQitemZ200233537538QQihZ010QQcategoryZ107068QQssPageNameZWDVWQQrdZ1QQcmdZViewItem If so those carbs are the latest HL Tillotsons. Something like HL375s. They have the newer 'consta...
- Fri Jun 20, 2008 9:27 am
- Forum: General Discussion
- Topic: Porting a Mac Engine
- Replies: 11
- Views: 10846
Re: Porting a Mac Engine
Bob,
I still think you should try one of my little superchargers.....
I still think you should try one of my little superchargers.....
- Fri Jun 20, 2008 9:23 am
- Forum: General Discussion
- Topic: Porting a Mac Engine
- Replies: 11
- Views: 10846
Re: Porting a Mac Engine
Bob, If anyone tries to put this into a 100 word post, they probably will be skipping something............. I suggest you pick up a copy of Gordon Jennings 'Two Stroke Tuner's Handbook'. The blow-down time effects power band width (RPM range). But here is a lot more involved than just the actual ti...
- Wed Jun 18, 2008 11:40 am
- Forum: General Discussion
- Topic: McCulloch volume tuned exhaust mufflers
- Replies: 6
- Views: 6951
Re: McCulloch volume tuned exhaust mufflers
Do you want to sell them, or one, if they can be cut apart ?
- Tue Jun 10, 2008 11:15 pm
- Forum: General Discussion
- Topic: McCulloch volume tuned exhaust mufflers
- Replies: 6
- Views: 6951
Re: McCulloch volume tuned exhaust mufflers
Have a picture ?
- Thu May 22, 2008 9:21 pm
- Forum: General Discussion
- Topic: Were's all the Mac spares gone.
- Replies: 5
- Views: 5614
Re: Were's all the Mac spares gone.
Maybe we should all stop bitching. Yes, there has been problems, but....... There has been time that I have thought about calling up the local scrap yard, and unloading inventory just to spite some of the A wholes I have to deal with on eBay. I have thrown some of it away, and given other stuff to l...
- Thu May 22, 2008 9:10 pm
- Forum: General Discussion
- Topic: Mac Rod Offset?
- Replies: 6
- Views: 6663
Re: Mac Rod Offset?
It's not supposed to be..........