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Forum: Glow Engines

03-14-2010, 10:11 AM

Replies: 63

Magnum 52- 91 four strokes - good or bad?

Views: 6,743

Posted By submikester

RE: Magnum 52- 91 four strokes - good or bad?

I think this is common with the 52/61 motor. I have always wished that my 61 idled just a bit lower but - and not to push this too much - the new needle valve did make a difference. The most...

Forum: Glow Engines

03-14-2010, 12:24 AM

Replies: 63

Magnum 52- 91 four strokes - good or bad?

Views: 6,743

Posted By submikester

RE: Magnum 52- 91 four strokes - good or bad?

The thread size for the 91 and 61/52 are the same so the amount of movement that each turn generates is the same. The difference in the needles is the actual taper on the point.

It's shorter on...

Forum: Glow Engines

03-13-2010, 02:33 AM

Replies: 63

Magnum 52- 91 four strokes - good or bad?

Views: 6,743

Posted By submikester

RE: Magnum 52- 91 four strokes - good or bad?

I really like the Magnum 61 RFS (4 stroke) a lot better than the 52. I don't have the 52 but Ihave a lot of friends who do - one thing I noticed is that the Needle valve that shipped with my 61 and...

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