Question about 2005 Harley Davidson XL 1200 C Sportster Custom

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Acceleration problem hello i have a 1998 harley sportster that i put a stage1 dynojet kit in it will not accelerate i have put new intake gaskets followed the instructions double checked i have taken the carb off enough times to wear it out checked the fuel it had a 195 main jet stock and a 42 pilot jet i went back with a 200 main jet and a 45 pilot changed the slide spring that came with the kit but i did not change the slide or drill the hole out in the slide i just don't know what else to do all help would be great thanks.

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If you are not running an open or free flowing exhaust go back to the stock size jets but use the DynoJet parts instead of the stock.
DJ jets tend to run bigger than oem jets

Posted on Jan 29, 2009

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Why does my gf's sportster **** and sputter apon acceleration?terribly.will only go about 30 mph and sounds bad doing it,Why?


Most likely, the carb is misadjusted or needs cleaning. This is a job for a licensed, respected Harley mechanic, as an amateur would most likely make it far worse. Should not be costly.

Sep 03, 2014 | Cars & Trucks

1 Answer

*my harley breaks up during acceleration its a sportster 1000 1980. I bought it a month ago the only problem when I got it was gas would run out of reserve and it would break up in fourth gear the guy...


Hi Anonymous, if you have a carburator the usual suspects are:
1. Damaged or restricted fuel tank venting system (gas cap).
2. Inlet system air leak.
3. Vacuum piston malfunction.
4. Accelerator pump leaking or no output.
5. Plugged bowl vent.
6. Fuel level (float chamber) too low.
7. Restriccted fuel supply passages.
8. Plugged jets or passages.
9. Worn or damaged needle or needle jet.
10. Enrichner valve not seated or leaking.
Good luck

Aug 15, 2013 | Harley Davidson XLH 1000 Sportster...

1 Answer

Harley sportster won't accelerate after warm... Idles fine top end is fine


Hi Anonymous, if you have a carburator the usual suspects are:
1. Damaged or restricted fuel tank venting system (gas cap).
2. Inlet system air leak.
3. Vacuum piston malfunction.
4. Accelerator pump leaking or no output.
5. Plugged bowl vent.
6. Fuel level (float chamber) too low.
7. Restriccted fuel supply passages.
8. Plugged jets or passages.
9. Worn or damaged needle or needle jet.
10. Enrichner valve not seated or leaking.
Good luck

Jun 25, 2012 | 2005 Harley Davidson XL 883 Sportster

1 Answer

Sportster bogs off idle


Hi Anonymous, give the nice folks at dynojet a call. Have nice day.

Feb 08, 2012 | Harley Davidson XL 1200 C Sportster Custom...

1 Answer

Harley davidson xlx 1984 Sportster - what does the rebuild kit for the carb. come with?


Most of the rebuild kits for that carb come with all the gaskets, an accelerator diaphragm, and a float needle valve. The seat is not replaceable.

Good luck
Steve

Sep 07, 2011 | Harley Davidson XLS 1000 Motorcycles

1 Answer

I have a 1996 883 Harley Sportster with a S&S carb (E) . When ideling its ok , but as soon as you try to excelerate it cut right out . Could it be the excelerator pump ?


Suspect items are the float level, accelerator pump, acc. pump inlet and exit check valves, off idle circuit, and main jet circuit. Be certain that you have no intake leaks.

Oct 03, 2010 | 1993 Harley Davidson XLH Sportster 883

1 Answer

My sportster will only stay running when choke is fully engaged. When I try to accelerate it bogs down. As soon as I push the choke in after the bike is fully warmed, it dies. I can only reach about 40...


Your carb is running either extremely lean or extremely rich. Either you have a serious vacuum leak or excess fuel is finding it's way into the carb. If the bike has been sitting for a long period of time (more than about 3 months), you're jets in the carb may be clogged.

You remove the carb, disassemble it, and clean everything inside with particular attention to the slow speed jet and the main jet. This best left to someone with the proper skill level to do the job. However, it can be done by an advanced amateur.

I would also replace the intake gaskets while I had it down this far. Replace the gaskets where the intake connects to the cylinder head. The intake flanges are marked "F"ront and "R"ear. Install the new gaskets and loosely install the bolts. Once the carb is completed, install the carb seal on the intake and install the carb and bolt up the backing plate to the carb and the heads. This will align the intake. With the carb and air filter backing plate in place and tight, tighten the bolts that hold the intake to the heads. Reconnect the throttle cables (may require removal of the air filter backing plate) and make sure the throttle works correctly.

Regrettfully, this is one job that I strongly recommend a service manual. You know the saying "a picture is worth a thousand words". It certainly holds true in this case especially if you're going to tackle the carb yourself.

If I can be of further help, drop me a line directly at wd4ity@bellsouth.net Good Luck!

Feb 14, 2010 | 2005 Harley Davidson XL 883L Sportster

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