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TOPIC: Frankenstein mini bike with a ct1 175

Frankenstein mini bike with a ct1 175 10 Apr 2019 21:15 #1

  • VanDam
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Hey new to Yamaha and 2 strokes. But I got this mini bike in a trade that has a ct1 motor on it and I can't get it to run. Got spark, don't believe the ejector is working so Im mixing gas, don't have an air filter but should still atleast get something. Not even a put put. Compression sounds amazing. Do not have a exhaust for it so that's open. Decided to time the points and thought they were under the magneto with the coils but there's nothing. There's a little cylinder that hooks up. But no points. Any help would be appreciated. I'll take some photos of the magneto area when im back at the shop.

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Re:Frankenstein mini bike with a ct1 175 10 Apr 2019 21:17 #2

  • VanDam
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Went through the carbs all the jets are super clean.

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Frankenstein mini bike with a ct1 175 11 Apr 2019 15:51 #3

  • johninga
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You will need to reinstall the carb to get it to start Yay2

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Frankenstein mini bike with a ct1 175 11 Apr 2019 17:32 #4

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1976 DT175C Not Running...yet
1974 DT250A Next in Que
1975 DT100B 3rd in line
2002 FJ1200
Primary Home Long Grove, IL
Secondary Home UP of MI

Frankenstein mini bike with a ct1 175 11 Apr 2019 18:36 #5

  • JGersh
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Not to change the topic, but it looks like people crammed many different motors in Honda Z50’s

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‘68 DT1
‘70 CT1-B
‘70 HT-1
‘12 Triumph Scrambler

Re:Frankenstein mini bike with a ct1 175 11 Apr 2019 20:25 #6

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Yeah... Carb on and have gas running to it. That was when I first got it.. This is the plate under the magnito and It seems like the point should be on top of that..

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Re:Frankenstein mini bike with a ct1 175 11 Apr 2019 20:25 #7

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Oddly that is awesome! Looks a little scary though

JGersh wrote: Not to change the topic, but it looks like people crammed many different motors in Honda Z50’s


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Re:Frankenstein mini bike with a ct1 175 11 Apr 2019 20:51 #8

  • MarkT
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Yup, you are missing the points. I don't know how you have spark unless someone has wired in one of those little lawn mower "points eliminator" boxes?

www.jackssmallengines.com/Products/BRIGG...t/MEGA-FIRE-IGNITION

If that's what they did... then the timing is likely way off and you'd have to slot or drill new holes in the stator plate to rotate it to get the timing right. Which would be kind of a waste of time because those little boxes fry pretty quick on a Yamaha.... speaking from experience.

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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

Frankenstein mini bike with a ct1 175 16 Apr 2019 18:44 #9

  • Mark350
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Not to change the subject , but here's another version of CT-1 in a mini frame. Started as a Cat 400x. Moves out pretty well!
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