Mk2 starts but wont rev
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knackeredMk1
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Re: Mk2 starts but wont rev
I'm sure I've got a Mk1/2 ignition coil. - Try it for the cost of the postage?. PM me your address.
With regards to testing the pickups you should be able to test pulses on a decent auto tester. Obviously they are working at idle which would suggest they are OK. Check the connections for rust anyway.
With regards to testing the pickups you should be able to test pulses on a decent auto tester. Obviously they are working at idle which would suggest they are OK. Check the connections for rust anyway.
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helisupp
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- Bike Owned: CRM AR (4)
- Location: Gloucester
Re: Mk2 starts but wont rev
Yep, watched the video, I reckon its your coil.
Its common for them to break down, but usually at a higher rpm, it used to happen on points ignition bikes years ago, if you forgot to turn the ignition off it burnt the coils, you could start but not rev the engine.
Its common for them to break down, but usually at a higher rpm, it used to happen on points ignition bikes years ago, if you forgot to turn the ignition off it burnt the coils, you could start but not rev the engine.
Re: Mk2 starts but wont rev
Thanks for the kind offer. The chap who I bought it from has a spare coil so I'm gonna try that but it is a bugger of a problem. I'm also in touch with Zeeltronic who make CDi units for YPVS and others to see if Borut will make units for the CRM. They are programmable and control the power valve too to get the best out of the motors.knackeredMk1 wrote:I'm sure I've got a Mk1/2 ignition coil. - Try it for the cost of the postage?. PM me your address.
With regards to testing the pickups you should be able to test pulses on a decent auto tester. Obviously they are working at idle which would suggest they are OK. Check the connections for rust anyway.
Watch this space....
Re: Mk2 starts but wont rev
Tried a new coil tonight and.....no change. 
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helisupp
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Re: Mk2 starts but wont rev
Find another MK2 owner and start swapping parts, including ECU (yours onto theirs).
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jm38
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Re: Mk2 starts but wont rev
it sounds like mine went when running with duff rectifier headlights on indicating and braking it did similar untill i turned out the lights .it was fine untill i used all the amps for lighting then it robbed the sparks also try your cdi on a mates bike as they like to bugger up together.
Re: Mk2 starts but wont rev
Just a tail piece to the above....I sourced a new CDi on ebay. it was a Chinese unit and although it didn't start as well it did rev. Next job was lights so after cleaning out a ton of crud from the switch I fired it up and switched them on which immediately blew the bulbs. Next the bike cut out and refused to start again. Swapped back to the non revvy cdi started up and hey presto 38v at the bulb holder.
It would appear that the reg/rec has gone. It may also have taken the new cdi down with it.
So here are 2 questions....1. Anyone selling a MK11 reg. (if not please see Q2). 2. Does anyone want a CRM MK11 in need of a reg £600?
It would appear that the reg/rec has gone. It may also have taken the new cdi down with it.
So here are 2 questions....1. Anyone selling a MK11 reg. (if not please see Q2). 2. Does anyone want a CRM MK11 in need of a reg £600?
Re: Mk2 starts but wont rev
Hi
I had a similar problem with the two MK 3 after re build, re bore and carb cleaning.
Luckily I had a spare bike so changed parts until I got to the bottom of the problem, mine was the carb, I found that the bike was getting too much fuel, worked this out by running the bike with the fuel switched off, just before the fuel ran out the bike run perfect, I adjusted the float height, jets, pins etc, in the end I bought a second hand carb, put it on and hey presto run perfect. Still puzzled why the original carb would not run the bike properly and will get to the bottom of the problem.
I had a similar problem with the two MK 3 after re build, re bore and carb cleaning.
Luckily I had a spare bike so changed parts until I got to the bottom of the problem, mine was the carb, I found that the bike was getting too much fuel, worked this out by running the bike with the fuel switched off, just before the fuel ran out the bike run perfect, I adjusted the float height, jets, pins etc, in the end I bought a second hand carb, put it on and hey presto run perfect. Still puzzled why the original carb would not run the bike properly and will get to the bottom of the problem.