Monster 1100 cold start issue

[G1DEON]

I recently bought a 2008 monster 1100 that started quickl and great at first, but then began turning over slowly and needed several tries to fire up and click. I tested the battery, dicovered that its weak, and replaced it with the same size from Batteries Plus. Even after that, it took 6-7 tries to start cold the next day but ran fine afterward. Has anyone found a reliable fix for this cold start issue?

 

[fastdesmomachine163]

I think, it might be the starter cables are a bit weak or the grounding isn't great. A heavy-duty starter cable kit usually does the trick. Also, you'll want to check those connections to make sure they're sparkling clean and tight.

 

[thiago_tavares]

Hi, I had the same problem 3 times, with 3 different solutions.

1 - 55k km the first fix, was the adjust of the valves, the vertical cylinder had no compression.
2 - The second fix was the starter engine, problem with rust, after change, I've recover the original now I have a spare part for the future
3 - 86k km the last time was the adjust of the TBI, the butterfly was completely closed

before that I've changed de battery, sparks and cables, at the and wasn't those the problems

Hope had helped

I have a 2010 1100s Monster.

 

[MasterMonster]

I recently bought a 2008 monster 1100 that started quickl and great at first, but then began turning over slowly and needed several tries to fire up and click. I tested the battery, dicovered that its weak, and replaced it with the same size from Batteries Plus. Even after that, it took 6-7 tries to start cold the next day but ran fine afterward. Has anyone found a reliable fix for this cold start issue?

The slow cranking is almost always a sign of a high-resistance connection, since the stock starter motor is super sensitive to any voltage drop. My guess is it's the ground cable from the engine to the frame.. the factory paint can sometimes cause a poor contact.

Another spot to check is the starter motor itself and its main power lead. Clean up all those connections with a wire brush and apply a little dielectric grease. It can be a pain, but it usually solves the issue!!

 

[cabbagepatch56]

The slow cranking is almost always a sign of a high-resistance connection, since the stock starter motor is super sensitive to any voltage drop. My guess is it's the ground cable from the engine to the frame.. the factory paint can sometimes cause a poor contact.

Another spot to check is the starter motor itself and its main power lead. Clean up all those connections with a wire brush and apply a little dielectric grease. It can be a pain, but it usually solves the issue!!

Good info! thanks! Did you find the engine-to-frame ground was the main issue on yours, or was it more the starter lead?

 

[1000spaghetti]

I recently bought a 2008 monster 1100 that started quickl and great at first, but then began turning over slowly and needed several tries to fire up and click. I tested the battery, dicovered that its weak, and replaced it with the same size from Batteries Plus. Even after that, it took 6-7 tries to start cold the next day but ran fine afterward. Has anyone found a reliable fix for this cold start issue?

I think @fastdesmomachine163 is right, and while you're checking the cables, take a look at the starter solenoid.
It's a small black box, often with a couple of fuses nearby. It acts as a switch, and if it's going bad, it can cause a slow or delayed start. If you hear a loud click but the starter motor isn't turning, the solenoid could be the culprit.

 

[MasterMonster]

Good info! thanks! Did you find the engine-to-frame ground was the main issue on yours, or was it more the starter lead?

I've experienced the engine ground before but on a different bike. The main starter lead was solid, but that frame ground was caked in paint and wasn't making a great connection at all. I cleaned it up and it fired right up every time after that.

 

[bigbrain$]

Have you tried cycling the key to let the fuel pump prime more than once before cranking? It can make cold starts more consistent.