| Author | Message | ||
     Nascarguy |
Well I bought an '03 Blast knowing it had issues with starting. I had seen the bike just a few weeks before and had taken it for a test ride so figured how bad could it be. Enough said...!! So here I am now totally miffed on what could be wrong with the Blaster. Here is what I have some so far and the outcome of my efforts. Swapped out the gas for some high test by draining the tank and carb... no difference Checked for spark... got plenty Checked and set timing using the static method... no difference Totally disassembled the carb and gave it a good bath. Sprayed out all the jet holes and reassembled... no difference Replaced the jets with the renowned 45/175 combination... no difference Replaced the enrichener...no difference Drilled the mixture plug out, took out and cleaned, then replaced making sure I had all pieces in right then set at 2 1/2 turns back from bottom...no difference. Checked the Das Boot(OEM) for leaks and cracks then with carb installed checked vacuum; got plenty....no difference. Tried starting the bike with the gas cap off... no difference Some things I did notice: I am getting about voltage at the enrichener plug but with the cap and guts removed I am not seeing any movement on the enrichener plunger. I didnt on the old one either; that is why I replaced to begin with. The bike does sputter and fart while trying to start but never gets up enough momentum to get itself running. I know there are many Blaster gurus on here so figure I would hope to get some insight on this stubborn beast. I have been around bikes many many years, even rebuilt a few and never had this much fun. | ||
| Ezblast |
Kickstand and clutch safety - disable. EZ | ||
| Nascarguy |
Thanks EZ. I jumped both the Kickstand and Clutch safeties and same result. It will turn over, sputter and fart but no start. Any other suggestions would be greatly appreciated. | ||
| Ezblast |
Check for ignition light and check your grounds - clean and tighten - check that battery can carry a load. EZ | ||
| Dwp138 |
I did static timing , and then checked with a timing light. I found my static timing was pretty far off. My blast never really ran right until bought the timing light. Also the previous owner removed the auto choke and added a manual choke. | ||
| Gearheaderiko |
Well, if the choke works properly, it's way better than the auto enrichener. | ||
| Kenny_gilgore |
Erick Is there any information on here on converting to a manual choke? Kenny G | ||
| Gearheaderiko |
http://www.badweatherbikers.com/buell/messages/201 64/6812.html?1384192039 | ||
| Kenny_gilgore |
Erick, That looks a little complicated for me to do. I was hoping that there was a way to adapt the choke off of a Sportster to the Keihin on my Blast. KennyG | ||
| Ezblast |
nope. Older carb version is the Sportster. EZ | ||
| Gearheaderiko |
It's not that complicated, not much more complicated than installing a regular CV carb choke. Okay: just about any Harley carb from appx. 1985 (don't remember the exact year of the carb change to the CV) will bolt up to your Blast. NOTE: slide spring will have to be swapped. Jetting (and needle) will have to be changed to your current Blast jetting. Accelerator pump must be disabled. You will lose the TPS function of the Blast carb. The throttle cable hook up must be swapped. The TPS can be replaced by a VOES. Both control the advance function of the ignition. Without it the ignition defaults to full throttle (or race) mode. You probably won't notice the difference in running, but it will hurt mpg. (IE: you can do without the TPS/VOES). Harley CV carbs can be had pretty cheap, $40 or so off season. DO NOT BUY A CV CARB UNLESS IT COMES WITH A CHOKE AND CABLE ATTACHED TO IT. They are hard to come by (for some unknown reason) and there is always a shortage of chokes and cables to go with carbs. Don't count on going to a dealer and picking one up easily either. |
