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TOPIC: RT2 ignition timing questions.

RT2 ignition timing questions. 16 Mar 2019 13:59 #1

  • KennyV
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So I'm making a little progress on my RT today. Cylinder with fresh bore and new piston back on and I wanted to check timing before I put the head on. Acording to the service manual timing is set at 0.114" and points set at 0.013". Using my analog meter the points end up at .009" when according to the meter at 0.114" btdc. I'm used to my 250A where I set the stator for the timing to be correct with the points set at 0.014".
Is normal or not that unusual? Could I have the wrong points? Has anyone elongated the stator holes to correct this? I've had this issue with this bike with the PO. As always, thanks much for any and all help and ideas!

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71 Z50 Minitrail
72 RT2
74 250A
78 XT500E
06 F650GS Dakar

RT2 ignition timing questions. 16 Mar 2019 14:32 #2

  • Mauser
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I know nothing about the problem your facing Kenny, but .005" isn't a lot ? would you be able to accuratly measure the response time based on the points movement down to such a small amount ?...as you rotate the flywheel I would think it would be very difficult to get such an exact measument ?, I might be wrong :)
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RT2 ~ XR650R ~ DT175MX ~ ZX12R ~ XJR1300 ~ DT125LC ~ XR250R ~ XL125R ~ RD350LC ~ MT50 ~ GPZ1100

RT2 ignition timing questions. 16 Mar 2019 15:06 #3

  • KennyV
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Mauser wrote: I know nothing about the problem your facing Kenny, but .005" isn't a lot ? would you be able to accuratly measure the response time based on the points movement down to such a small amount ?...as you rotate the flywheel I would think it would be very difficult to get such an exact measument ?, I might be wrong :)


Thanks Mauser, you may may be correct. I might be over thinking this. It's all a bit subjective. I think I'll set points at 0.013" and see how it runs. Thanks again!

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71 Z50 Minitrail
72 RT2
74 250A
78 XT500E
06 F650GS Dakar

RT2 ignition timing questions. 16 Mar 2019 16:56 #4

  • MarkT
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So what is the timing (how far before TDC do the points just start to open) when you set the maximum point gap to 0.013"?

My guess is it will be advanced considerably from the correct timing. That could be bad on a 360 that already has the reputation of being an "ankle breaker"

I've always set the points to open at the correct distance BTDC and if the maximum point gap is off, replace the points.

It's harder to get points these days... I believe all of the quality companies have stopped making them. So not knowing anything about the condition of the points you're using, replacing them with known good quality (preferably NOS) would be my first thought.

(If I had to make a decision on just working with what I have, I would see how it runs with the timing correct and the point gap a little small as it seems the lesser evil)




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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250

RT2 ignition timing questions. 16 Mar 2019 17:53 #5

  • KennyV
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Thanks much MarkT, I much appreciate your thoughts and advice!

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71 Z50 Minitrail
72 RT2
74 250A
78 XT500E
06 F650GS Dakar
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