I got this 1978 Suzuki dirtbike its a 100cc from one of my dads friends and it ran so well for about two years it would be in the middle of winter and the first kick it would start in the middle of winter and it was cold then during the summer i went riding and i went around the property and i will always remember this but all i did was i went around a corner not a sharp corver just a normal corner all went to accelerate and it just bogged the engine.So then just from that day its been getting worse to the point today when it doesnt even run.weve takin it apart and replaced the crank shaft seals and all the bearings and god all engine gaskets replaced and we put it all back together and it doesnt run wirth beans soo weve also replaced the ignition box and the coil and it still DOESNT run so what we are now thinking it is is the compression weve taken many testes and the compression is around 80-85 which is a little low for a old bike just it still should at least fire.
2006-08-06 05:55:18 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Motorcycles
Well the funny thing is is when we took the exaust off and tried kicking it over it allmost almost fired it didnt run but just sounded like it fired once or twice.
32 minutes ago
Just the other thing since my bike is soo old and is a unusualy model (TF-100) you cant really get parts for it but we did order a different piston off of a different suzuki they are soooo close just the piston we orderd had shorter piston skirts than the origional one in the bike and it also lighter than the one in the bike...could this do any harm to the engine we havent done anything since about 3 months ago because me and my father and not sure if it will screw up the engine.
2006-08-06 06:14:57 · update #1
The piston we got was from wesco but for a RM-100
2006-08-06 06:15:41 · update #2
The shorter skirt will affect the port timing on your motor, depends on how much shorter it is, to how it will affect your engine. Providing it has the correct piston /bore clearance and the ring locating pegs keep the ring ends away from the ports, then damage shouldn't occur.
What about the squish clearance? (distance between piston and combustion chamber at top of the stroke). Less than 0.7mm and you got problems.
2006-08-06 06:48:31 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I also have a 100cc street bike and it would not run until I put a hotter spark plug and removed the baffles in my exhaust. Also most of the suzuki 100 and 125 dirt or street are compatible i have a 1998 and the carb fits my 73 100cc and you would be surprized that a lot of parts interchange but the motorcycle shops where I live will not share this info.
2006-08-06 06:37:53 · answer #2 · answered by Steve A 2 · 0⤊ 0⤋
has the brake lamp switch shorted? try removing the stoplamp wires from the brake lever and handlebar lever (if it has a switch as well).
Is there a spark at the plug?
dirt in the carburettor? Is the sparkplug wet when you try to start? If not, there is not fuel getting through. Dirt in the fuel tank perhaps.
2006-08-06 06:06:42 · answer #3 · answered by XT rider 7 · 0⤊ 0⤋
Did you clean out the carbs? Bogging is a sign of fuel starvation. You need air/fuel/compression/ignition to run an engine, if one's missing or lacking, performance will suffer...Compression OK, spark ok, timing ok, air ok, fuel ok=should run...
2006-08-06 11:54:44 · answer #4 · answered by gokart121 6 · 0⤊ 0⤋
Have you checked if there's anything blocking the exhaust ? If it almost ran, with the exhaust off, then it may have dislodged something, back when it started to run poorly, and has 'coked up' over time.
2006-08-06 10:54:53 · answer #5 · answered by flaming_dog_racing 3 · 0⤊ 0⤋