 America Speedmaster Electrics
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Joined: Apr 2005
Posts: 30
Greenhorn
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OP
Greenhorn
Joined: Apr 2005
Posts: 30 |
Ok, I,ve got a big problem.
I bought an engine for a Special that I,ve nearly finished.I,ve got most,(I think) of the electrics. I,ve fitted CR35 carbs. I,m having trouble getting an ignition spark. So I have a few Questions that the smarter folk may be able to help me with.I dont think I have the carb vent valves nor do I know what they look like.Because of the new carbs ,I now dont have connected the following, carb vent valves,carb heaters,throttle position sensor. My problem may not be any of the above but I want to start eliminating possibilities. I,ve bypassed the kick stand switch. Any ideas.
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Re: America Speedmaster Electrics
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Joined: Jan 2005
Posts: 5,537
Check Pants
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Check Pants
Joined: Jan 2005
Posts: 5,537 |
Just a guess, but the I doubt the TPS can just be disconnected and still allow the bike to run. You probably need to trick the TPS into thinking it is still there, probably a diode of the right Ohms would work? We used to do that to eliminate skip-shift program on GM six-speed manual transmissions.
Al
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Re: America Speedmaster Electrics
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Joined: Apr 2005
Posts: 30
Greenhorn
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OP
Greenhorn
Joined: Apr 2005
Posts: 30 |
I just found the problem. All it was , was one of the wires that go into yhe igniter plug had pulled out ,but not right out. I counted the 11 wires on the back of the plug but I could only see 10 shiny connectors on the inside face of the plug . one wire had pulled back a bit.. It started straight away. but I,ve got heaps of sorting out to do.
The bike is a Triton. Slimline Frame. I,ve tried to post a pic but lost patience trying to make it smaller. If anyone wants me to Email a pic to them they maybe able to get it up there so everyone can see this beauty.
Don
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Re: America Speedmaster Electrics
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Joined: Jan 2005
Posts: 3,734
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 3,734 |
You can send that pic to me. Just click on my username to the left, and my email is there.
Glad to hear your igniter problem was only the pin. What kind of other problems do you have that need sorting out?
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Re: America Speedmaster Electrics
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Joined: Jan 2005
Posts: 5,537
Check Pants
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Check Pants
Joined: Jan 2005
Posts: 5,537 |
Good detective work! Email me the picture, I'll post in my gallery - I'd love to see your work and bet others as well.
Al
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Re: America Speedmaster Electrics
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Joined: Apr 2005
Posts: 30
Greenhorn
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OP
Greenhorn
Joined: Apr 2005
Posts: 30 |
No doubt I,ll have to sort out these CR35 carbs, I,m running them with some flat pancake style filters like Triumphs used to use.
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Re: America Speedmaster Electrics
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Joined: Jan 2005
Posts: 6,308 Likes: 4
Worn Saddle
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Worn Saddle
Joined: Jan 2005
Posts: 6,308 Likes: 4 |
The bikes will run with the TPS disconnected, just not have the spark advance capabilities. When I had the mikunis there was no TPS connected. I just taped the plug up.
On Matt's bike with the Amals, they came with a little plug we inserted into the TPS with some resistors or such inside to give the advance needed.
A word to the wise is not necessary. It is the stupid ones who need the advice.
Pat
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Re: America Speedmaster Electrics
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Joined: Jan 2005
Posts: 3,734
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 3,734 |
Don's Triton  Great looking bike Don!
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Re: America Speedmaster Electrics
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Joined: Apr 2005
Posts: 30
Greenhorn
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OP
Greenhorn
Joined: Apr 2005
Posts: 30 |
So you are saying that by disconnecting the TPS the bike now has no advance curve at all?
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 Re: America Speedmaster Electrics
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Joined: May 2005
Posts: 403
Adjunct
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Adjunct
Joined: May 2005
Posts: 403 |
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Re: America Speedmaster Electrics
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Joined: Jan 2005
Posts: 3,734
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 3,734 |
Quote:
So you are saying that by disconnecting the TPS the bike now has no advance curve at all?
From the Bonneville Delphi forum:
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Yes, it's ok to unplug it. It's there to give a little more timing advance at part throttle. You won't change the peak performance of the bike if you unplug it (I don't use the TPS on my bikes)
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That was posted by Jojje, a Swedish engineer who builds his own turbo Bonnevilles with homemade fuel injection that he drag races. He's also the only known source for upping the rev limiter on the Bonneville CDI boxes. Outside of a Triumph engineer, I think he's probably the most knowledgable source for technical aspects of these bikes.
If you have any questions, he'll answer them. His e-mail is
NOSPAMjojje.lindskog@stabbarps-auto.com
Remove NOSPAM for the correct address. I don't want him to get a bunch of junk mail in case somebody is mining this site, so I posted it that way.
There have been quite a few people that have unplugged the TPS without any issues. At most, it might make it a bit cold -blooded.
If you have time, you oughta look around his website.
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Re: America Speedmaster Electrics
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Joined: Apr 2005
Posts: 30
Greenhorn
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OP
Greenhorn
Joined: Apr 2005
Posts: 30 |
I already have someone thats very interested in buying it and I havent even ridden it. I,m going overseas in 2 weeks and if I get it sorted by then it may be sold.
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Re: America Speedmaster Electrics
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Joined: Jan 2005
Posts: 8,639 Likes: 3
Old Hand
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Old Hand
Joined: Jan 2005
Posts: 8,639 Likes: 3 |
Quote:
So you are saying that by disconnecting the TPS the bike now has no advance curve at all?
It will still advance. The TPS info is used to select one of several curve tables. You might do well to replace the TPS with a variable resistor and try a few settings, then put in a fixed resistor of the value that gives you the best performance.
Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python
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