1985 JR50 help - Motorcycle-Journal Forums

kyle9013 · 08-04-2005, 10:20 PM

Yeah i have a 1985 jr50 but i have a problem it could be that i dont think that theres any oil in the little compartment attatched to the seat. but every time im in gear and give it full gas it bogs down. and doesnt wanna go.

gra03cobra · 08-06-2005, 04:20 PM

Clean the carb..!Thats the first thing you need to do!

SuzukiRider · 08-18-2005, 01:28 AM

check your plug, clean the carb....and make sure the gas is on!

Dave2122 · 08-18-2005, 10:48 PM

You need to make sure the injector oil is present in the oil tank before you do anything with the motor running!!!!!!!! I cannot stress this enough!!!

How is the compression? If it is decent then move to the carb and plug as was stated.

digipoi · 08-20-2005, 01:56 PM

Definitely clean the carb out. My sons JR has lost a ton of power. I just took his carb apart and gave it a good cleaning. Also, in the pilot circuit there are two tiny jets screwed into the same threading. The second jet (the smaller one, possibly a restriction, Im not sure) seems to be a smaller size so I removed it. I use my arm to kickstart it now with ease and the bike seems to have gotten its power back plus a little extra. Im testing it on the trail today, Ill report my findings.

digipoi · 08-23-2005, 12:51 PM

Well, I found you really dont need that extra little jet in the carb. Ran great for a little while but the little JR went back to being weak (weaker than when I first purchased it, even after a piston and ring change). Im fed up, cant wait to purchase the TTR-50E with electric start.

captbly99 · 08-27-2005, 12:42 PM

Hello, i am new to the site and we aquired an older, like maybe 1980 JR 50 and we are trying to find out what the points gap should be set at, any ideas on how to find out this info?

captbly99 · 08-27-2005, 12:43 PM

Also, should we be running straight gas or premix in it? (1980 JR 50)

08-04-2005, 10:20 PM	#1 (permalink)
kyle9013 Newbie Joined: Aug 2005 Posts: 18	1985 JR50 help Yeah i have a 1985 jr50 but i have a problem it could be that i dont think that theres any oil in the little compartment attatched to the seat. but every time im in gear and give it full gas it bogs down. and doesnt wanna go. Last edited by kyle9013; 08-05-2005 at 07:59 PM.

08-20-2005, 01:56 PM	#5 (permalink)
digipoi Seat Tester Joined: Sep 2004 Location: Honolulu Posts: 84	Definitely clean the carb out. My sons JR has lost a ton of power. I just took his carb apart and gave it a good cleaning. Also, in the pilot circuit there are two tiny jets screwed into the same threading. The second jet (the smaller one, possibly a restriction, Im not sure) seems to be a smaller size so I removed it. I use my arm to kickstart it now with ease and the bike seems to have gotten its power back plus a little extra. Im testing it on the trail today, Ill report my findings. __________________ 2004 RM250 2004 DRZ125L 2006 TTR-90E 2004 JR50 1993 RM250 1990 KDX200

08-23-2005, 12:51 PM	#6 (permalink)
digipoi Seat Tester Joined: Sep 2004 Location: Honolulu Posts: 84	Well, I found you really dont need that extra little jet in the carb. Ran great for a little while but the little JR went back to being weak (weaker than when I first purchased it, even after a piston and ring change). Im fed up, cant wait to purchase the TTR-50E with electric start. __________________ 2004 RM250 2004 DRZ125L 2006 TTR-90E 2004 JR50 1993 RM250 1990 KDX200

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08-06-2005, 04:20 PM	#2 (permalink)
gra03cobra Where Am I ? Joined: Apr 2005 Posts: 33	Clean the carb..!Thats the first thing you need to do!

08-18-2005, 01:28 AM	#3 (permalink)
SuzukiRider In Training Joined: Jun 2005 Bike: '84 P.e 175 Location: B.C Canada Posts: 109	check your plug, clean the carb....and make sure the gas is on!

08-18-2005, 10:48 PM	#4 (permalink)
Dave2122 Sprocket Pilot Joined: Sep 2004 Bike: Which one of the 9? Location: USA Posts: 887	You need to make sure the injector oil is present in the oil tank before you do anything with the motor running!!!!!!!! I cannot stress this enough!!! How is the compression? If it is decent then move to the carb and plug as was stated.

08-27-2005, 12:42 PM	#7 (permalink)
captbly99 Newbie Joined: Aug 2005 Posts: 4	Hello, i am new to the site and we aquired an older, like maybe 1980 JR 50 and we are trying to find out what the points gap should be set at, any ideas on how to find out this info?

08-27-2005, 12:43 PM	#8 (permalink)
captbly99 Newbie Joined: Aug 2005 Posts: 4	Also, should we be running straight gas or premix in it? (1980 JR 50)

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