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Post by royldoc on Apr 15, 2011 1:22:58 GMT -6
I was going to change the jets. The main jet I took out is marked JR08. Does this indicate it is a 108 jet?
Roy
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Scooter Doc
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Post by Bong on Apr 15, 2011 12:12:59 GMT -6
Not sure but, I don't think so. If thats a 50cc trike a 108 jet is way to much IMO. I am no expert but most modded 50 4T scoots run around 95 or so. I run an 88 with just a UNI filter and sock was 75. Then again these trikes maybe way different than there 2 wheeled counterparts. Others will have better answers I'm sure.
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Post by Alleyoop on Apr 15, 2011 12:35:25 GMT -6
Roy,
What kind of carb is on there maybe that will help locate the size jets for that type of carb.
Alleyoop
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Post by royldoc on Apr 15, 2011 12:44:06 GMT -6
I'm thinking it is an 80 just stamped backwards. It is a 19mm Jing Rong cvk carburetor. This is the carburetor I pulled of the trike when I did the bbk.
Roy
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Post by royldoc on Apr 15, 2011 12:45:58 GMT -6
Oh ya, forget to mention it has a JR28 pilot jet also.
Roy
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Post by Alleyoop on Apr 15, 2011 13:18:21 GMT -6
Roy,
I believe you got it down Bro, 80 main and 28 pilot.
Alleyoop
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Scooter Doc
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Post by Bong on Apr 15, 2011 13:46:55 GMT -6
Now that makes sense!!!! stock Is usually around 30 Pilot and 70/80 main. Again just my opinion if thats a QMB engine.
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Clinician
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Have an Ice Bear Q6 blue trike (PST50-17).
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Post by km on Apr 6, 2014 16:41:21 GMT -6
I switched the JR08 jet for an 85 and that was enough to support the free flowing air filter. I also assumed the JR08 was an 80. I have an Ice Bear Q6 (blue) trike. I have changed the CDI, spark plug, and coil. I removed the air box and used the breather tube and a portion of the intake tube from the air box to create a intake with the crankcase tube still hooked up to the intake. I then added a free flow air filter (cone). This would then not move with any throttle opening without the main jet change. I ran tests with the 85 and the spark plug electrodes are chocolate brown (as they should be), and throttle responds well all the way to full. Still deciding on the next performance change to make because the second level garage I park it on has a steep ramp which the trike cannot quite make it to the top.  It is still a new motor (160 km), but a little more torque would be nice.  There is very little information available for the Q6 at this point, so gaining valuable experience.  Ken |
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..BAD TO THE BONE..
It is still a new motor (160 km), but a little more torque would be nice. 
