- Posts: 159
- Thank you received: 2
Starting problem
- 2bskor
- Topic Author
- Offline
- User
Compression all good,checked ignitor good, lots of spark. the fuel had stabilizer prior to storage. I drained the carb bowls and blew compressed air through the drain holes and fuel line and vacuum line for shit and giggles.
I tried it again and it stumbled and after turning over about five or six times it started and ran fine. I took it for a drive and it ran great!!
I tried it after about ten minutes later and it started on first touch of the starter button. O left it for 4 hours and it is a no go!! I turned the fuel to pri,res still no go. It was hard cold starting since last year.
So we got fuel,we got spark what a missin??
1979 KZ1000ST (Canadian) Electronic Ignition, 4 into 1 header,K&N air filter
Please Log in or Create an account to join the conversation.
- bountyhunter
- Offline
- User
- Posts: 7246
- Thank you received: 337
That sounds like a problem with the choke/enriching circuit in one or more of the carbs. The "choke" on these Mikuni carbs is actually a big honking jet inside the carb. Turning on the chocke actually opens flow through that jet and gives you way more gas for cold starting. It that's not happening, your engine will be very hard to start cold but run great hot.My last post was hijacked
Bike was hard starting last summer. It turned over many many times before it would start. I tried it again and it stumbled and after turning over about five or six times it started and ran fine. I took it for a drive and it ran great!!
1979 KZ-750 Twin
Please Log in or Create an account to join the conversation.
- TeK9iNe
- Offline
- User
- What did you do!?!
- Posts: 2440
- Thank you received: 28
Burn the whole tank, then put the other half in and fill it again.
While your out running around for a while, pull the choke a bit till it starts to feel different, and ride it like that for about 15 seconds at a time. Do this a few times.
Then after its sat overnight, you will feel a nice improvement, and your problem will likely be gone.
GL!
Make sure your air filter is good and clean, and everything is sealed up tight!
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Please Log in or Create an account to join the conversation.
- Patton
- Offline
- KZr Legend
- Posts: 18640
- Thank you received: 2098
Also try using the kick starter (where available), whereby more battery power is devoted to ignition.
Good Fortune!
1973 Z1
KZ900 LTD
Please Log in or Create an account to join the conversation.
- keith1
- Offline
- User
- Posts: 1729
- Thank you received: 2
Go get a can of Seafoam, and dump half into your tank, then fill it with gas, and go.
Burn the whole tank, then put the other half in and fill it again.
While your out running around for a while, pull the choke a bit till it starts to feel different, and ride it like that for about 15 seconds at a time. Do this a few times.
Then after its sat overnight, you will feel a nice improvement, and your problem will likely be gone.
GL!
Make sure your air filter is good and clean, and everything is sealed up tight!
good advice.....i would try this method first and see what happens....good luck....
Please Log in or Create an account to join the conversation.
- 2bskor
- Topic Author
- Offline
- User
- Posts: 159
- Thank you received: 2
1979 KZ1000ST (Canadian) Electronic Ignition, 4 into 1 header,K&N air filter
Please Log in or Create an account to join the conversation.
- 2bskor
- Topic Author
- Offline
- User
- Posts: 159
- Thank you received: 2
1979 KZ1000ST (Canadian) Electronic Ignition, 4 into 1 header,K&N air filter
Please Log in or Create an account to join the conversation.
- TeK9iNe
- Offline
- User
- What did you do!?!
- Posts: 2440
- Thank you received: 28
Sounds interesting!! makes sense. Would valve clearances do this just a thought as since i owned the bike they were never checked. I wonder what the kawi dealer would charge. They probably see me with that bike and I would look like a bag of $$
Check your compression once the bike is good and hot. 30min ride at least. If the compression is good, (130+ and not more than 10% difference between cylinders), and the bike isn't making any tap-tap-tapping valve sounds, then your clearances are likely fine.
Let us know!
PS. If you REALLY can't get it started, buy a spray can of starter fluid. Only spray it for 2-3 seconds into the air filter, then crank, she'll fire right up. This is only a last ditch alternative for when you really need to get going. You deffinately need to fix the issue first.
Cheers.
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
Please Log in or Create an account to join the conversation.
- 2bskor
- Topic Author
- Offline
- User
- Posts: 159
- Thank you received: 2
I am starting to think it is choke related because if it's warm it will start very fast. If it ever stops raining I'll see if the seafoam helped.
Thanks!!
1979 KZ1000ST (Canadian) Electronic Ignition, 4 into 1 header,K&N air filter
Please Log in or Create an account to join the conversation.