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post #1 of 23 (permalink) Old 03-30-2013, 01:53 PM Thread Starter
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Hot start problem

Hello to all, I'm hoping to get some help or advice on a problem I'm having on my 2001 FLTR. After I bought it I had the dealer run the VIN number on it and found out the engine had been upgraded with Screamin' Eagle cams and high compression pistons. It also has a SE ignition module. At least that's what I think it is.
The bike starts right up when cold and runs great. The problem I'm having is that when I try to start it when it's hot (like when I stop for gas.) it will kick back and grind against the starter. I just bought a new battery with 400 cca and that helped at first but the last time I rode it, it happened again.
Someone on another forum suggested I check the timing. How do you set the timing?, or can I even do that? Could I take it to a dealer and have them set it? Or do yall think that may even be the problem? Maybe I need a high torque starter? Anybody have experience with this? Any help or advice would be much appreciated...Thanks.
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3.875" cylinder assembly,SE TC88 HC 1550 piston kit,SE 203 cam kit,SE intake manifold,SE 6200 race ignition system,Thunderslide kit

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post #2 of 23 (permalink) Old 03-30-2013, 03:10 PM
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My suggestion would be the Daytona TwinTec ignition module which has the specific ability to eliminate this problem:

http://www.daytona-twintec.com/TC88.html

From their FAQ:

"Will the Twin Tec TC88 solve my hot starting problems?

Some Twin Cam 88® engines are prone to hot starting problems. When cranked after a short hot soak, the engine may “kick back.” Over time, this will cause damage to the ring gear and starter pinion.

The TC88 module uses an improved starting algorithm that includes a programmable cranking delay. The TC88 module is shipped with a zero cranking delay: it fires on the first recognized compression stroke. This works best on stock and mildly modified engines.

High compression engines may exhibit a “dieseling” phenomena after a hot soak. This can be verified by temporarily disconnecting the 3 terminal coil primary connector to disable the ignition. If the engine still kicks back or runs for several revolutions after cranking, the problem is dieseling. The only solution is to install compression releases. When compression releases are installed, best starting results will be obtained by programming the TC88 module for a 1-2 revolution cranking delay. This can be done by means of the PC Link TC88 software and optional interface cable."


I've had the Twintec module on 2 past bikes, worked great, with no hot start problems.
Be sure to make sure your battery cables are up to snuff also, on a bike that old they may be getting tired.

The only other "for sure" solution would be compression releases, which can be kind of spendy.

2015 RGU CVO........under continuous change......
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post #3 of 23 (permalink) Old 03-30-2013, 04:23 PM
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It sounds like you may have a bad compensator. It is or was a very common problem on the newer 09s to approx 2011 96" and some 103" models. Obviously yours is an 88" but they used that 88" style comp on the newer model with more power and it wouldnt hold up to well. With the added power that your motor may have it is possible youre getting the same problem that the 96"ers have. My RG had the same issue, motor kickback and starter grinding only when the motor was hot. It turned out to be the bad compensator which in turn wiped out the starter clutch. I had to replace both.
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post #4 of 23 (permalink) Old 03-30-2013, 04:29 PM
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Originally Posted by rlaf75 View Post
It sounds like you may have a bad compensator. It is or was a very common problem on the newer 09s to approx 2011 96" and some 103" models. Obviously yours is an 88" but they used that 88" style comp on the newer model with more power and it wouldnt hold up to well. With the added power that your motor may have it is possible youre getting the same problem that the 96"ers have. My RG had the same issue, motor kickback and starter grinding only when the motor was hot. It turned out to be the bad compensator which in turn wiped out the starter clutch. I had to replace both.

The 88 and 95" motors never had compensator issues, they should have stuck with that early style compensator and the new bikes wouldn't have problems either. The "intermediate" version is the ones that's had problems.

2015 RGU CVO........under continuous change......
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post #5 of 23 (permalink) Old 03-30-2013, 07:11 PM Thread Starter
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Thanks tdkkart for that link. That sounds like what I need to solve this. Is the Screamin' Eagle module not adjustable? All of these parts were installed at Harley-Davidson of Montgomery. It seems it should work with the high compression pistons and cams.

3.875" cylinder assembly,SE TC88 HC 1550 piston kit,SE 203 cam kit,SE intake manifold,SE 6200 race ignition system,Thunderslide kit
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post #6 of 23 (permalink) Old 03-30-2013, 09:05 PM
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Quote:
Originally Posted by tdkkart View Post
The 88 and 95" motors never had compensator issues, they should have stuck with that early style compensator and the new bikes wouldn't have problems either. The "intermediate" version is the ones that's had problems.
My 96" had a bad comp. Same symptoms as the op. Just sayin

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post #7 of 23 (permalink) Old 03-30-2013, 09:19 PM
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Originally Posted by rlaf75 View Post
My 96" had a bad comp. Same symptoms as the op. Just sayin
Did some review, 2007-2010 are the years with the compensator issues, 2006 was the old style, 2011 comes with the "SE" compensator.

2015 RGU CVO........under continuous change......
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post #8 of 23 (permalink) Old 03-30-2013, 09:24 PM
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Originally Posted by Bamaglider View Post
Thanks tdkkart for that link. That sounds like what I need to solve this. Is the Screamin' Eagle module not adjustable? All of these parts were installed at Harley-Davidson of Montgomery. It seems it should work with the high compression pistons and cams.
The SE module for that era is non-adjustable.

One easy fix, DO NOT open the throttle while cranking the engine when hot, until the engine has spun over a couple times.

2015 RGU CVO........under continuous change......
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post #9 of 23 (permalink) Old 03-30-2013, 09:35 PM
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Starter kick back

That kind of issue could be in your battery cables and ground as well as ignition most likely you are having some issues or going to end up with starter drive issues as well. so when your starter drive does crap out do not go to harley davidson, go to your friendly NAPA store, and buy a wilson brand starter drive 61-29-14172 if that number doesnt work try 1330 54-82401 $30 compared to $124.95 Harley used a hitachi starter on the twin cams through 06 and it just so happens toyota uses a very similar starter drive on a toyota forklift but the napa drive is whole lot stronger I was having a simalar problem to what you were with kick back and grinding new cables and this starter drive fixed it for a fraction of what genuine hd would of cost and with a lot better product my friend and I have probably fixed a dozen or so bikes like this with 0 failure Good luck
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post #10 of 23 (permalink) Old 03-30-2013, 10:04 PM Thread Starter
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Yeah, I was told that if the battery was not strong enough it would not keep the starter drive engaged causing it to slip and grind. After I bought the new battery I thought it was fixed. The cables are clean where they connect to the battery. I didn't check them at the other end. I suppose they could have some corrosion in them. I'll replace them before I do anything else.

3.875" cylinder assembly,SE TC88 HC 1550 piston kit,SE 203 cam kit,SE intake manifold,SE 6200 race ignition system,Thunderslide kit
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