1998 EVO starts nicely but takes to long to warm up
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Seasoned HDF Member
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From: usa
1998 EVO starts nicely but takes to long to warm up
Bike has 32,000 mile on it , bought it used at about 26,000 and bike seem all original . But it takes a good 5 to 8 minutes before you can even think of going anywhere.
So I’m looking for where to start my troubleshooting .
So I’m looking for where to start my troubleshooting .
Stellar HDF Member
Joined: Aug 2020
Posts: 3,167
Likes: 2,206
From: College Station, TX
When you say "it takes a good 5 to 8 minutes before you can even think of going anywhere", does that mean the engine hesitates when you open the throttle? Or is it some other issue? Is this a condition that existed when you got the bike? Or did this problem begin recently?
What carb is on it? It looks like it has a Screamin Eagle air cleaner, but can't see the carb behind it. Also, the exhaust you are using can be finicky to tune as well.
If it's a hesitation or stumble problem when accelerating, then it is likely fuel/ carb related. I'd start with reading the plugs to see if there are any hints there in terms of a lean condition. Check for vacuum leaks at the manifold to head connection and see if the carb accelerator pump is delivering a decent jet spray of gas when the throttle is opened. If all else appears and checked good, I'd pull the fuel bowl to check for debris or corrosion in the bowl and jets. If debris or corrosion is found, check the condition of the gas tank in terms of rust or debris.
Paul
What carb is on it? It looks like it has a Screamin Eagle air cleaner, but can't see the carb behind it. Also, the exhaust you are using can be finicky to tune as well.
If it's a hesitation or stumble problem when accelerating, then it is likely fuel/ carb related. I'd start with reading the plugs to see if there are any hints there in terms of a lean condition. Check for vacuum leaks at the manifold to head connection and see if the carb accelerator pump is delivering a decent jet spray of gas when the throttle is opened. If all else appears and checked good, I'd pull the fuel bowl to check for debris or corrosion in the bowl and jets. If debris or corrosion is found, check the condition of the gas tank in terms of rust or debris.
Paul
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