rcx132
Philip
- Messages
- 2,689
- Location
- London, UK
Last week I rolled this car into my garage. I's a 1.3l Carburetted Suzuki SJ413.
It had been sitting in a barn for 7 years going by the petrol receipts in the footwell. The last owner says he connected the battery the wrong way round. His mechanic tried fixing it by replacing most of the ignition system but gave up saying it's got serious wiring issues.
Took me 6 hours to get it running. Don't laugh, I haven't worked on a car this simple for 18 years and had forgotten all the basics. The "hall" sensor that times the ignition spark, sits in the dizzy and needed replacing and the wire that took power to the coil was damaged. The wiring in general seems fine.
It now starts, poorly. But when revved up it runs sweet, so there's an idle problem.
Compression seems ok. My guage reads 140psi on all cylinders, engine is low mileage, history backs that up. I did the valve clearances, they were well out.
The ignition system is all new, new HT leads, new coil, new rotor arm and dizzy cap, new plugs. Only the hall sensor is not new (got from breakers). The ignition system is a simple few wire system. Power goes to the coil, a "hall" sensor in the dizzy does the timing, that's it. I did the ignition timing with a strobe gun. The timing advances when I rev up.
So I started thinking the carb needs something. I've never touched the carb on a car, I've only ever worked with EFI systems, but I've done dozens of motorbike carbs.
I ordered a carb rebuild kit. But while doing so, I noticed the following statement on an American website warning people that "carb" issues on these cars are not usually solved by rebuilding the carb. Now this website is a shop that does most of the supplies for these cars in America.
I didn't know the carb had any electronics or what they could be. I'll have a read through the manual later, but thought I'd get the ball rolling and ask what people think here.
It had been sitting in a barn for 7 years going by the petrol receipts in the footwell. The last owner says he connected the battery the wrong way round. His mechanic tried fixing it by replacing most of the ignition system but gave up saying it's got serious wiring issues.
Took me 6 hours to get it running. Don't laugh, I haven't worked on a car this simple for 18 years and had forgotten all the basics. The "hall" sensor that times the ignition spark, sits in the dizzy and needed replacing and the wire that took power to the coil was damaged. The wiring in general seems fine.
It now starts, poorly. But when revved up it runs sweet, so there's an idle problem.
Compression seems ok. My guage reads 140psi on all cylinders, engine is low mileage, history backs that up. I did the valve clearances, they were well out.
The ignition system is all new, new HT leads, new coil, new rotor arm and dizzy cap, new plugs. Only the hall sensor is not new (got from breakers). The ignition system is a simple few wire system. Power goes to the coil, a "hall" sensor in the dizzy does the timing, that's it. I did the ignition timing with a strobe gun. The timing advances when I rev up.
So I started thinking the carb needs something. I've never touched the carb on a car, I've only ever worked with EFI systems, but I've done dozens of motorbike carbs.
I ordered a carb rebuild kit. But while doing so, I noticed the following statement on an American website warning people that "carb" issues on these cars are not usually solved by rebuilding the carb. Now this website is a shop that does most of the supplies for these cars in America.
We have been asked by many if we have a carburetor rebuild kit for the Samurai. However the issues regarding the Samurai carburetors usually don't evolve around sealing or o-rings- its usually something to do with the electronics and or vacuum related components. While gummed up carburetor internals can cause issues, we have found that testing the carburetor components before rebuilding is the most affordable and reliable means of seeing if what you have is worth the trouble. If you find that your carburetor electronics and vacuum related components are good, then we have these available to fix the rest of your problems (23 year old+ o-rings and seals.)
I didn't know the carb had any electronics or what they could be. I'll have a read through the manual later, but thought I'd get the ball rolling and ask what people think here.
Last edited: