Hey folks,
First post after intro and i was hoping for a little help getting my old sleds up and running for the season. Have a pair of indy 500 classics, i said old, a 91 and 93. Both new to me late last year. The 93 ran ok and the 91 went about 200 yards and bogged and died. Was still able to take the kids out a few times and they loved it.
Summer came and i was able to get at them for my first time.
New fuel lines
Clean carbs replaced needles and seats
Replaced spark plug caps NGK
Replaced plugs BR8ES
Replaced throttle cable
Replaced choke cable
Set idle and synced carbs
Set choke and throttle cables
Redo carbs to remove A**zon needles and seats back to originals due to leaking
Checked fuel filters and lines in tanks
Installed fuel filter and shutoff inline on 91
Removed fuel filter and shutoff inline on 91 to fit airbox back on
Checked compression 120 psi for both cylinders on 91 and 118psi both cylinders on the 93
New fuel premix 40:1 premium, as i was told both machines have the oil injection disabled
2 - 4 cycles on each sled of getting up to operating temperature then draining the cylinders with the plugs under the exhaust y-pipe.
Probably other things i am forgetting. Any suggestions are more then welcome.
ALL PROCESSES COMPLETED WITH SIGNIFICANT LURKING ON THIS FORUM!!!!!
THANKS ALL!!!
Now for the results and questions.
1993
Runs great after slight idle adjustments.
Starts cold (5C currently) with 1/2 choke 1 pull with 2 fingers.
Victory for now.
1991
Runs great after same few minor adjustments
Takes 10 or more pulls to start
Takes 2 hands to pull full force even when eventually started and warm.
I am small and weak just so we are clear, but this is still extreme.
Carbs are not dumping fuel into the engine from what i can tell. I have removed the cylinder drains several times with very little result.
I have rebuilt the recoil on both machines and the spring seems shorter on this machine. I can't see this making the pull harder....maybe shorter.
Sled is hard to turn over at +10C temperature so its not frozen.
Still hard to pull over with plugs out
Sorry for the long post. Just trying to include as much info as i can.
Questions.....AKA Where to start.
Buy a new spring for the recoil..thats cheap. Swaping recoils from another sled is free?
Should I pull the belt off? I'm pretty confident the rest moves smoothly, but just to eliminate it (not that it's catching)? Maybe spin both clutches (on the 2 seperate machines) to see if there is a different feel from that side of the machine (plugs out).
Not really worried about the number of pulls to start it right now, more the force required to turn it over.
When it first bogged when i got it, it was dumping fuel out the exhaust. I am worried maybe a bent connecting rod or something. Being a parent I always think worst case scenario.
Any thoughts you folks might have are greatly appreciated.
Thanks
Sent from my SM-A520W using Tapatalk
First post after intro and i was hoping for a little help getting my old sleds up and running for the season. Have a pair of indy 500 classics, i said old, a 91 and 93. Both new to me late last year. The 93 ran ok and the 91 went about 200 yards and bogged and died. Was still able to take the kids out a few times and they loved it.
Summer came and i was able to get at them for my first time.
New fuel lines
Clean carbs replaced needles and seats
Replaced spark plug caps NGK
Replaced plugs BR8ES
Replaced throttle cable
Replaced choke cable
Set idle and synced carbs
Set choke and throttle cables
Redo carbs to remove A**zon needles and seats back to originals due to leaking
Checked fuel filters and lines in tanks
Installed fuel filter and shutoff inline on 91
Removed fuel filter and shutoff inline on 91 to fit airbox back on
Checked compression 120 psi for both cylinders on 91 and 118psi both cylinders on the 93
New fuel premix 40:1 premium, as i was told both machines have the oil injection disabled
2 - 4 cycles on each sled of getting up to operating temperature then draining the cylinders with the plugs under the exhaust y-pipe.
Probably other things i am forgetting. Any suggestions are more then welcome.
ALL PROCESSES COMPLETED WITH SIGNIFICANT LURKING ON THIS FORUM!!!!!
THANKS ALL!!!
Now for the results and questions.
1993
Runs great after slight idle adjustments.
Starts cold (5C currently) with 1/2 choke 1 pull with 2 fingers.
Victory for now.
1991
Runs great after same few minor adjustments
Takes 10 or more pulls to start
Takes 2 hands to pull full force even when eventually started and warm.
I am small and weak just so we are clear, but this is still extreme.
Carbs are not dumping fuel into the engine from what i can tell. I have removed the cylinder drains several times with very little result.
I have rebuilt the recoil on both machines and the spring seems shorter on this machine. I can't see this making the pull harder....maybe shorter.
Sled is hard to turn over at +10C temperature so its not frozen.
Still hard to pull over with plugs out
Sorry for the long post. Just trying to include as much info as i can.
Questions.....AKA Where to start.
Buy a new spring for the recoil..thats cheap. Swaping recoils from another sled is free?
Should I pull the belt off? I'm pretty confident the rest moves smoothly, but just to eliminate it (not that it's catching)? Maybe spin both clutches (on the 2 seperate machines) to see if there is a different feel from that side of the machine (plugs out).
Not really worried about the number of pulls to start it right now, more the force required to turn it over.
When it first bogged when i got it, it was dumping fuel out the exhaust. I am worried maybe a bent connecting rod or something. Being a parent I always think worst case scenario.
Any thoughts you folks might have are greatly appreciated.
Thanks
Sent from my SM-A520W using Tapatalk
91 Polaris Indy 500 hard pull
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